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My cx 25

Posted: Fri Jan 13, 2017 8:57 am
by dalnilo
Hello to all,
I started the adventure for the construction of my cx 25, I hope in the many technical tips, and many moral aid.
publish 'some pictures for you to see how far they have come.
thanks bye
pardon the English use the translator
:D

Re: My cx 25

Posted: Fri Jan 13, 2017 9:34 am
by jacquesmm
Don't worry about the language, we will work it out.

Re: My cx 25

Posted: Fri Jan 13, 2017 4:27 pm
by danieloldhouse
Hi Dalnilo, if you need help with the translation just ask.

Ciao Dalnilo, se posso aiutarti con le traduzioni non hai che da chiedere.

Daniele

Re: My cx 25

Posted: Mon Jan 16, 2017 5:39 pm
by dalnilo
http://gallery.bateau2.com/displayimage.php?pid=63686

Sorry faces the turn to post photos

Re: My cx 25

Posted: Fri Mar 03, 2017 2:01 pm
by dalnilo
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Re: My cx 25

Posted: Fri Mar 03, 2017 2:03 pm
by dalnilo
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Re: My cx 25

Posted: Fri Mar 03, 2017 2:05 pm
by dalnilo
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Re: My cx 25

Posted: Fri Mar 03, 2017 2:10 pm
by dalnilo
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Hello to all,<br />I am enlivened at this point.<br />if you give me tips to do your thing.
Hello to all,
I am enlivened at this point.
if you give me tips to do your thing.
Hello to all,
I am enlivened at this point.
if you give me tips to do your thing.

Re: My cx 25

Posted: Fri Mar 03, 2017 2:14 pm
by dalnilo
I would have thought to put the bow thruster, what do you think.

Re: My cx 25

Posted: Tue Mar 07, 2017 10:08 pm
by MrPaul
Wow! When did this start? Looks really good. Please keep posting.

Re: My cx 25

Posted: Tue Mar 07, 2017 11:28 pm
by willg
You work fast! Molto bella!

Re: My cx 25

Posted: Wed Mar 08, 2017 1:40 pm
by TomW1
dalnilo wrote: Fri Mar 03, 2017 2:14 pm I would have thought to put the bow thruster, what do you think.
A 25' boat is marginal for a bow thruster. It depends on the currents and tides in your area. If they are strong in your area and I know from experience that there can be some high ones around Italy then a bow thruster makes some sense. If not there is no need for one on a boat this small. it also depends on how much room you have to moor or dock. The smaller the space the more you will need one.

So summing it up, it is really up to you as you know what your conditions are and how well you can handle your new boat.

Tom

Re: My cx 25

Posted: Thu Mar 09, 2017 8:53 am
by dalnilo
thanks for the advice, and for the compliments.
I install bow thrusters, especially for small spaces that we have it our poorly equipped ports of southern Italy.

Re: My cx 25

Posted: Thu Mar 09, 2017 9:36 am
by dalnilo
the angles you have to do it with the edge, or rounded?

Re: My cx 25

Posted: Thu Mar 09, 2017 11:05 am
by jacquesmm
You laminate the fiberglass with a round edge, just as you did and build a sharp edge with the fairing compound.

Re: My cx 25

Posted: Fri Mar 10, 2017 10:40 am
by dalnilo
Considering this moment as the beginning. October 2016
Considering this moment as the beginning. October 2016

Re: My cx 25

Posted: Wed Mar 15, 2017 1:01 pm
by peter-curacao
TomW1 wrote: Wed Mar 08, 2017 1:40 pm
dalnilo wrote: Fri Mar 03, 2017 2:14 pm I would have thought to put the bow thruster, what do you think.
A 25' boat is marginal for a bow thruster. It depends on the currents and tides in your area. If they are strong in your area and I know from experience that there can be some high ones around Italy then a bow thruster makes some sense. If not there is no need for one on a boat this small. it also depends on how much room you have to moor or dock. The smaller the space the more you will need one.

So summing it up, it is really up to you as you know what your conditions are and how well you can handle your new boat.

Tom
You can put a bow thruster but imo you don't need one, over here we have very strong trade winds and currents, mine is 3' longer and I dock this boat accurate within the "millimeter" using one outboard and no bow thruster, If I can do it anyone can do it :wink:

Re: My cx 25

Posted: Thu Mar 16, 2017 3:07 pm
by dalnilo
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sorry I 'came a doubt. looking carefully at photos of other CS25 seems that this part in red was more 'long, you have a reference measurement? thank you

Re: My cx 25

Posted: Thu Mar 16, 2017 5:07 pm
by jacquesmm
I can't give you a dimension, I don't know where to start to measure but, use the bow mold to check the length and shape.
It looks fine to me and if all your dimensions are OK, it should be correct.

Re: My cx 25

Posted: Thu Mar 16, 2017 6:19 pm
by dalnilo
jacquesmm wrote: Thu Mar 16, 2017 5:07 pm I can't give you a dimension, I don't know where to start to measure but, use the bow mold to check the length and shape.
It looks fine to me and if all your dimensions are OK, it should be correct.
Ok thanks

Re: My cx 25

Posted: Sun May 07, 2017 3:15 am
by dalnilo
Hello, I had this problem, I did not smell thinking the resin was fresh.
I got off completely. Fortunately I noticed in time.
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Re: My cx 25

Posted: Sun May 07, 2017 1:03 pm
by narfi
Your boat is looking great!

What is the problem in the last post?
The faring compound did not bond with the resin below?

Re: My cx 25

Posted: Sun May 07, 2017 10:46 pm
by Dutch1
In the second and third picture the fiberglass looks very "clean" (not sanded). What speed hardener did you use? How soon after fiberglassing did you put the fairing compound on? It looks like from the dates on your posts it could be around 5 days. With that much time in between (anything over 24hrs) I've been told to clean and sand the fiberglass to make sure the next layer of anything will stick.

I'm curious to hear what everyone else says. ...

Re: My cx 25

Posted: Wed May 10, 2017 12:23 pm
by devinfox
Ugh, that looks like a lot of work and material down the drain. Improper ratios or underlying resin/glass needed at least scuffing. My .02
You are doing nice work there, the hull is coming together beautifully.

Re: My cx 25

Posted: Wed May 10, 2017 6:26 pm
by Browndog
There could of been some amine blush that caused the delamination. It does look like from the pictures that the fiberglass surface was very shiny indicating it had not been sanded. Sorry you had to deal with this. The adhesion appears so poor, that perhaps the cleanup won't be too bad. Otherwise your build has been a great one to follow. Wish you all the best in the continuation of your build.

Re: My cx 25

Posted: Sat May 13, 2017 4:27 pm
by dalnilo
Actually I had not had a cart. And after sanding, and it's ok.

Re: My cx 25

Posted: Mon May 15, 2017 1:36 pm
by bateau-webmaster
Regarding cleanup, I would suggest using a blower nozzle on an air compressor if you have one. Follow it around with a plastic spreader to help guide the airflow, it should allow you to just "peel" it off with the compressed air, depending on the amount of gap. The filler used looks like straight silica and epoxy? That's the only explanation I can think of for why it looks so brittle.

Re: My cx 25

Posted: Thu May 18, 2017 5:19 pm
by dalnilo
Thanks for the advice, I used epoxy glass microspheres.
I solved now I have repainted the stucco and everything adheres very well.

Re: My cx 25

Posted: Thu May 18, 2017 8:25 pm
by MrPaul
Glad to see you solved your problem. Please keep posting pics of your build. Always interesting to see these cx/cs boats come together.

Re: My cx 25

Posted: Sun May 28, 2017 11:11 am
by dalnilo
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Re: My cx 25

Posted: Sun May 28, 2017 11:18 am
by dalnilo
And the first time I use phenolic microspheres. I have to say that as finish they are great.
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Re: My cx 25

Posted: Sun May 28, 2017 11:29 am
by dalnilo
I would like to ask what size, length do you need to do these pieces?
Do you skeg for what? Do you recommend mounting?


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Re: My cx 25

Posted: Sun May 28, 2017 1:14 pm
by TomW1
Any time I see that Jacques designs a boat and makes the skeg optional I would put it on. It will help in tracking in various seas and in following seas also. It just makes the boat easier to handle. As you can see by the size it doesn't have to be large to make a lot of difference. I would go with one 3 meters, 9 ft long. You could go another meter longer if you wish, but don't go to long or you will affect other handling characteristics.

Tom

Re: My cx 25

Posted: Thu Jun 22, 2017 4:54 pm
by dalnilo
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Re: My cx 25

Posted: Thu Jun 22, 2017 6:34 pm
by TomW1
Nice, I would round over the pointed edge of the skegs as fiberglass will not adhere to that point.

Re: My cx 25

Posted: Fri Jun 23, 2017 10:09 am
by bateau-webmaster
Could also simply run tape up both sides and hope it sticks to the other side enough to hold it in place, then trim with a razor blade. Then again I don't think the razor sharp edges are necessary on those skegs.

Re: My cx 25

Posted: Fri Jun 23, 2017 3:51 pm
by dalnilo
Hello, i do not understand what you mean by edge edge. In the design and edge. How should i do it? Should I round it up?
Do you think I am doing well?

Re: My cx 25

Posted: Fri Jun 23, 2017 3:58 pm
by dalnilo
I fixed everything this way with hot glue.
what do you think?
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Re: My cx 25

Posted: Fri Jun 23, 2017 4:01 pm
by dalnilo
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Re: My cx 25

Posted: Fri Jun 23, 2017 4:05 pm
by dalnilo
Should I put the glass tape?
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Re: My cx 25

Posted: Fri Jun 23, 2017 5:39 pm
by narfi
I think the fear is that without a larger radius on the tip, your tape will bubble out and cause huge voids while curing, the tape/cloth doesnt like sharp corners like that which is why you have the fillets inside corners and sanded or routed radius on outside corners.

Re: My cx 25

Posted: Sat Jun 24, 2017 5:34 am
by dalnilo
Sorry but what rays should I do? Should I just round up? The designs are sharp,

Re: My cx 25

Posted: Sat Jun 24, 2017 7:26 am
by BB Sig
I believe the radius needed is determined by the fiberglass being used. Thicker fiberglass needing a larger radius. I believe most times Jacques specifies a .5" radius. Too large is a waste of epoxy and too small is, well, too small. :D

Check your building notes to see what is specified. You can always sharpen the edges after the fiberglass is applied.

Re: My cx 25

Posted: Sat Jun 24, 2017 8:43 am
by Dougster
I'm wondering if you could skip the radius thing by doing one side at a time? Do one side, leaving an excess or overhang. Let that cure and cut the excess off cleanly along the sharp edge. Then do the other side. If concerned about the very edge run a thin bead of wood flour thickened epoxy along it and work it in with a stir stick, clean up with a rag, and touch up with hand sanding when cured.

Dougster

Re: My cx 25

Posted: Sat Jun 24, 2017 9:33 am
by dalnilo
For your opinion, (not considering the application of fiberglass) at the end is it more appropriate if I have an edge or rays?

Re: My cx 25

Posted: Sat Jun 24, 2017 12:52 pm
by bateau-webmaster
Forgive my Crude drawing, but this illustrates the two methods you could use:
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Option A, you will want to "round over" the hard edge of your material so that the tape wraps around it. While it may look like it will wrap just fine, once the epoxy starts curing the material changes properties slightly as the matrix with the epoxy forms, and the glass and epoxy will become "stiffer" and try to straighten out somewhat against the hard edge.

and Option B (if you want to keep that hard edge) is probably the best way to make it work, without having the tape peel off of the hard edge during curing. You will want to make sure to have as little tape overlapping at the top edge of the skegs as possible, but to make sure that it touches, and stays together. This way could be kinda tricky in practice.
Once it cures, you trim off the extra glass with a razor blade, and sand it to whatever edge you prefer.

I would do a test batch first on a small segment of the material either way, to see what you are up against.

Also of note: The strakes may look like they are a very pointy trianglar shape in the drawings, but the note next to them says 2"x2" cut diagonally, and glued on the diagonal cut side (In other words the design calls for a 90° angled piece, and probably with the same radius on the edge as you would find on standard hardware store lumber)

Re: My cx 25

Posted: Tue Jul 04, 2017 4:44 pm
by dalnilo
Hello everyone would like to see if as well as I did these pieces the navigation is fine.
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Re: My cx 25

Posted: Tue Jul 04, 2017 5:32 pm
by Jaysen
I don't think that will sit flat. The radius on the end it too sharp

Re: My cx 25

Posted: Tue Jul 04, 2017 10:20 pm
by Aripeka Angler
dalnilo wrote: Tue Jul 04, 2017 4:44 pm Hello everyone would like to see if as well as I did these pieces the navigation is fine.IMG_6875.JPGIMG_6885.JPG
I can laminate 12 ounce biaxial tape around the shape in your photo with no problem.
You can make it work also.
Don't overstress the fibers of the biax by forcing the fabric to bend.
Take your time, use plenty of epoxy and be prepared to fuss with it while it dries.
Do a test run on a sample piece of wood before you do your actual layup.

Re: My cx 25

Posted: Tue Jul 04, 2017 10:44 pm
by Jaysen
AA, you are right. I was looking at it with the gaps on the edge and not thinking about the epoxy holding it down. Sorry.

Re: My cx 25

Posted: Wed Jul 05, 2017 2:25 am
by dalnilo
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All the way and rewind as in the picture?

Re: My cx 25

Posted: Wed Jul 05, 2017 2:38 am
by dalnilo
Perhaps it is better to do so
Perhaps it is better to do so

Re: My cx 25

Posted: Mon Jul 17, 2017 3:42 pm
by dalnilo
Hello, i thought about changing splash rail, what do you think? For you as the best solution.
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Re: My cx 25

Posted: Tue Jul 18, 2017 2:42 pm
by dalnilo
can someone help me? how to do

Re: My cx 25

Posted: Tue Jul 18, 2017 4:31 pm
by narfi
I wish I knew more to help you.
In my HC14 and FS17 plans, it specifies a 1/2" radius needed for the glass to be able to lay over.

Maybe your CX25 plans specify a radius size for the weight of glass you are using?
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Sand down the point of your triangle to the shape of the circle on the outside, then glass it in.
Once that is done you can build up your point again with the appropriate filler to get your sharp triangle again if that is what you want.

Hopefully I am telling you the right thing, I have not done this, only studied alot :)

Re: My cx 25

Posted: Wed Jul 19, 2017 2:35 am
by Fuzz
Jeff can you make sure JM sees this? Thanks.

Re: My cx 25

Posted: Wed Jul 19, 2017 6:27 am
by Jeff
Fuzz, absolutely!! He will get this thread a little later this morning!! Jeff

Re: My cx 25

Posted: Wed Jul 19, 2017 12:44 pm
by jacquesmm
Let's not get too worried about strakes and spray rails. They are a good addition to a fast planing hull, not necessary on a slower one and the exact cross section does not matter too much.
The strakes full fill several functions. The most important one is to separate the water from the hull while on plane. This will happen with almost any section as long as the edge is sharp.
The strakes also help with dynamic stability: the tiny little bit of lift they provide add some stability but that lift is very small.
The last function is to divert sprays, again, no big difference between shapes.
Ideally, for the best lift, the surface should be parallel to the water but if I were to calculate the difference over the whole boat, we would be looking at something with 3 or 4 decimals.
For the best water separation, the surface should be angled a tiny little bit down but again, how much difference will it make?
To cut a square section along the diagonal puts you very close to the ideal strake. It will angled down a little bit and provide some lift.
It is a good compromise between water separation, lift and ease of building.
If you want more lift and less deflection, you can fill that corner as I see in the picture but I would not bother.
Each shape is good.
Two more points: you need a radius to glass them. Later, when faring, you should build up a sharp angle with resin plus a strong filler like glass strands.
That sharpness is more important than the angle.
Last point: don't compare to the strakes in production boats. Their size and shape is dictated by lamination requirements: you can't push glass in a small sharp corner (too much labor) and they don't want the gel coat to build up and crack. Do not compare, your strakes will be better.

Re: My cx 25

Posted: Wed Jul 19, 2017 2:15 pm
by dalnilo
Thank you so much for an explanation that leaves me no doubts.
Now I can proceed with more tranquility.
Since I have already glued one part is cut off the rest of the woods, I will proceed as you explained it to you without too much trouble.
Thank you again and sorry if I insisted for a clearer explanation.

With the translation from English to Italian it becomes all the more difficult.

Re: My cx 25

Posted: Wed Jul 26, 2017 4:15 am
by Bischoff
dalneilo wrote: Wed Jul 19, 2017 2:15 pm Thank you so much for an explanation that leaves me no doubts.
Now I can proceed with more tranquility.

With the translation from English to Italian it becomes all the more difficult.
Nice CX25!

Re: My cx 25

Posted: Wed Sep 13, 2017 10:59 am
by dalnilo
Hello to all
Finally I made the decision on how to make strakes and spray rails.
I think I did a good job, what do you think?
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Re: My cx 25

Posted: Wed Sep 13, 2017 12:32 pm
by pee wee
Very creative, that looks good.

Re: My cx 25

Posted: Wed Sep 13, 2017 1:00 pm
by bateau-webmaster
Very nice, I like it!

Re: My cx 25

Posted: Sat Sep 16, 2017 4:31 pm
by dalnilo
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Re: My cx 25

Posted: Sun Sep 17, 2017 11:10 am
by dalnilo
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Re: My cx 25

Posted: Sat Sep 23, 2017 9:34 am
by dalnilo
Hello
I wanted to ask you experts if I can make similar changes to my cx.
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Re: My cx 25

Posted: Sun Oct 08, 2017 6:26 pm
by Rich23
dalnilo wrote: Sat Sep 23, 2017 9:34 am Hello
I wanted to ask you experts if I can make similar changes to my cx.
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I assume your question has been unanswered on this? Curious because that's similar to what I would like to do with mine !

Re: My cx 25

Posted: Sun Oct 08, 2017 6:32 pm
by peter-curacao
Rich23 wrote: Sun Oct 08, 2017 6:26 pm
I assume your question has been unanswered on this? Curious because that's similar to what I would like to do with mine !
Serious Rich??? you're thinking of modifications like that on your CS? don't expect any help from me.
BTW imo that thing is ugly and probably topheavy too

Re: My cx 25

Posted: Mon Oct 09, 2017 4:11 am
by dalnilo
Rich23 wrote: Sun Oct 08, 2017 6:26 pm
dalnilo wrote: Sat Sep 23, 2017 9:34 am Hello
I wanted to ask you experts if I can make similar changes to my cx.
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I assume your question has been unanswered on this? Curious because that's similar to what I would like to do with mine !
thank you very much for commenting, I do not understand why nobody gives a comment either negative or positive. no matter, I think a more modern design does not change so much in terms of weight.
I have found many ideas to have a more comfortable boat, and in the end I will start from the things that I find most useful and functional for my use.
of course without disturbing the initial project.

Re: My cx 25

Posted: Mon Oct 09, 2017 4:17 am
by dalnilo
peter-curacao wrote: Sun Oct 08, 2017 6:32 pm
Rich23 wrote: Sun Oct 08, 2017 6:26 pm
I assume your question has been unanswered on this? Curious because that's similar to what I would like to do with mine !
Serious Rich??? you're thinking of modifications like that on your CS? don't expect any help from me.
BTW imo that thing is ugly and probably topheavy too
Peter I've admired the work you did at your boat, you made me dare to build a cx.
saying that I would make some changes does not mean they have already done so. advice is always welcome even if they are different from their own ideas.
Thanks for your help!!!!

Re: My cx 25

Posted: Mon Oct 09, 2017 4:47 am
by dalnilo
I think I can take some inspiration from this construction.
as a project I seem very similar to cx 25
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Re: My cx 25

Posted: Mon Oct 09, 2017 6:52 am
by peter-curacao
dalnilo wrote: Mon Oct 09, 2017 4:17 am Peter I've admired the work you did at your boat, you made me dare to build a cx.
saying that I would make some changes does not mean they have already done so. advice is always welcome even if they are different from their own ideas.
Thanks for your help!!!!
Dalnilo Thank you for the compliment,for the record I wasn't responding to you but to Rich, he has "troubles" enough as it is going trough the first phase of his build, let alone making major changes like that, that is what I was thinking is not a wise idea.
As for your question, keep in mind that the CS as with other bateau boats is a very light boat, raising the sheer that significant and building a pilot house that high on top of it wouldn't contribute to stability or enjoyable characteristics, just my 2 cents but it is your boat you should do as you please :wink: 8)

Re: My cx 25

Posted: Mon Oct 09, 2017 7:08 am
by peter-curacao
To compare: that boat is approx 3300 kg single 300 HP Suzuki OB opposite to the CS 25 of approx 1400 kg single 300 HP Suzuki OB

Re: My cx 25

Posted: Mon Oct 09, 2017 7:49 am
by Christer
peter-curacao wrote: Mon Oct 09, 2017 7:08 am To compare: that boat is approx 3300 kg single 300 HP Suzuki OB opposite to the CS 25 of approx 1400 kg single 300 HP Suzuki OB
Is that total weight, fully rigged and with fuel and gear?

Re: My cx 25

Posted: Mon Oct 09, 2017 7:54 am
by peter-curacao
CS Hull weight 765 kg Stripped hull, before rigging, no hardware. Estimated hull weigth with tanks and hardware: 908 kg
All specifications are approximate and subject to changes in function of the mood of the designer and the skills of the builder . . .

Re: My cx 25

Posted: Mon Oct 09, 2017 8:03 am
by dalnilo
with how much difference can there be? I would like to make the roof a little more modern, perhaps with more rounded shapes.
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Re: My cx 25

Posted: Mon Oct 09, 2017 8:24 am
by peter-curacao
I'm not making the numbers it is what it is, CX Stripped hull is approx a 100kg more at 865 kg.
The boat you were showing earlier is different from the CX or CS, it's LOA = 1 meter longer sheer and pilot house are significant higher.
dalnilo wrote: Mon Oct 09, 2017 8:03 am I would like to make the roof a little more modern, perhaps with more rounded shapes.
Sure you can do that, if it were me I use a foam core for that.
But fitting in a 2 persons berth with a pilot house over it like shown in the Moda boat will make it to high and top heavy, at least that's what I think.
I would have liked that Moda much more if it was longer and wider more in proportions with the the higher sheer, but as always beauty is in the eye of the beholder :wink:

Re: My cx 25

Posted: Sun Nov 26, 2017 5:09 am
by dalnilo
Hello to all,
for so much work I go a bit lazy, in my program I had thought to turn the boat by 2017, but I do not think I can.
put pictures of the little work I did.
what do you think of the vacuum process I use to laminate parts in photos.
It's the first time I use it, I hope the passion it takes to get it repaid with a great result.

Re: My cx 25

Posted: Sun Nov 26, 2017 5:14 am
by dalnilo
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Re: My cx 25

Posted: Sun Nov 26, 2017 10:53 am
by PNWcx25
I like it!

Re: My cx 25

Posted: Sat Jan 06, 2018 5:13 am
by dalnilo
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Re: My cx 25

Posted: Sat Jan 06, 2018 5:17 am
by dalnilo
Happy New Year to all.
I ask you for advice. I would like to finish the bottom of the boat so I can turn it around. what finish do I have to do? resin and graphite?

Re: My cx 25

Posted: Sat Jan 06, 2018 8:39 am
by pee wee
Hi Dalnilo, the boat is looking great. What to choose to finish the bottom of the boat will depend on how you plan to use it.

The resin and graphite that you see many builders put on has a purpose- abrasion resistance. Many areas around the southeast parts of the U.S. have beds of oysters, and if you're going after fish in shallow water it's easy to scrape up against them. If your boat will be kept on a trailer then this is an acceptable coating. It will not provide any resistance to marine growth, and it is susceptible to UV rays so needs to be protected from direct or prolonged sunlight. You'll never get as smooth a surface with the graphite/resin, because it goes on thicker than paint.

If you don't want to go with the graphite, and the boat won't stay in the water more than a few days at a time, then you can use marine paint, same as hull sides if you want to keep it simple. If the boat will stay in the water for extended periods, you do want a bottom paint and will want to ask around your area to see what works well for other boaters. It that's the way you go, you may want to paint your hull sides now and do the bottom close to the time you launch.

Re: My cx 25

Posted: Sat Jan 06, 2018 10:29 am
by dalnilo
thank you for your compliments.
I'm undecided, the side I want to finish them at the end, because I work in a narrow space so I would ruin it. for the fund I would like to do something definitive. I think I keep it in the water for 6 months a year.
a question can I give a coat of resin with graphite and then cover with polyurethane paint?

Re: My cx 25

Posted: Sat Jan 06, 2018 10:35 am
by fallguy1000
If you are going to keep it in the water for that long; I'd go with a bottom paint. That is what I am doing on mine. I am going to use interprotect 2000 or 2000e and then Petit Hydrocoat ECO to the waterline. It will be a nice harderish finish that you would be able to clean without removing a too ablative paint. Ask the people where you plan to anchor/moor/dock what the preferred local finish is though.

what was your vacuum rate for your on boat vac work? I am going to vac glass onto my bottom 33', I figured I'd only go with 9" hg or so; just enough to get the glass flat and pull a bit of excess

Re: My cx 25

Posted: Sat Jan 06, 2018 10:43 am
by joe2700
If you are going to bottom paint before the flip make sure you select one that gives you a long window between painting and launching. Some bottom pains need to be in the water a few weeks after you paint them. I selected one that gives me 18 months to launch without having to reactivate it with fresh paint or sanding.

Re: My cx 25

Posted: Sat Jan 06, 2018 12:46 pm
by dalnilo
fallguy1000 wrote: Sat Jan 06, 2018 10:35 am If you are going to keep it in the water for that long; I'd go with a bottom paint. That is what I am doing on mine. I am going to use interprotect 2000 or 2000e and then Petit Hydrocoat ECO to the waterline. It will be a nice harderish finish that you would be able to clean without removing a too ablative paint. Ask the people where you plan to anchor/moor/dock what the preferred local finish is though.

what was your vacuum rate for your on boat vac work? I am going to vac glass onto my bottom 33', I figured I'd only go with 9" hg or so; just enough to get the glass flat and pull a bit of excess
I'm sorry but with regard to the vacuum procedure I can not give you advice, because I've only done some tests, I'm not an expert!

Re: My cx 25

Posted: Mon Mar 19, 2018 3:40 pm
by dalnilo
Hello to all,
I'm finally ready to turn the boat. I gave a last base coat (white) in the living work, ready to receive the antifouling.
CB83A03C-65D2-440A-A593-E476511022C1.jpeg

Re: My cx 25

Posted: Mon Mar 19, 2018 3:42 pm
by Eric1
Great news !!! :D

Re: My cx 25

Posted: Mon Mar 19, 2018 4:20 pm
by Jeff
Yes, good progress!!! Jeff

Re: My cx 25

Posted: Mon Mar 19, 2018 7:13 pm
by Browndog
Good Job! Your boat is looking good.

Re: My cx 25

Posted: Sun Mar 25, 2018 5:50 pm
by dalnilo
Hello, yesterday morning I started the complicated maneuver to turn the boat (I finished today at 21)
start posting photos.
the work was done by me my wife and my two children 7 years 9 years.
let me know if you like it.
ask for some advice as well.

Re: My cx 25

Posted: Sun Mar 25, 2018 5:53 pm
by dalnilo
this is the maneuver to exit

Re: My cx 25

Posted: Sun Mar 25, 2018 5:55 pm
by dalnilo
50C57AC4-780F-4114-923B-41D123C75F19.jpeg

Re: My cx 25

Posted: Sun Mar 25, 2018 5:58 pm
by dalnilo
I had to scrape the wallI had to scrape the wall

Re: My cx 25

Posted: Sun Mar 25, 2018 6:01 pm
by dalnilo
23333B83-3FF4-4F89-A77E-10D3CB921FFE.jpeg
23333B83-3FF4-4F89-A77E-10D3CB921FFE.jpeg
A3FC1E3C-5659-43A7-B973-7E7C61EAFD8B.jpeg
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v
F7AC260F-2A03-4FC5-B577-59C4CD61626C.jpeg
g

Re: My cx 25

Posted: Sun Mar 25, 2018 6:04 pm
by dalnilo
F49A74F2-8926-42A3-A163-C397D844E830.jpeg
vv
1B199A16-383E-49F4-868F-1A02884241F5.jpeg
7001F7FC-05CC-4C63-B50C-1562B87539E1.jpeg
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AEEF4629-7AA6-4A76-8997-95D6334FF42A.jpeg
21FA2576-395D-4C99-935A-9BFA41AEF7E6.jpeg
gg

Re: My cx 25

Posted: Sun Mar 25, 2018 8:54 pm
by Fuzz
Now that is some tight working conditions but you seem to be able to make it work. Good job :!:
It has to be very nice to have the whole family helping you. I bet the kids will always remember the boat daddy built :wink:

Re: My cx 25

Posted: Mon Mar 26, 2018 2:00 am
by dalnilo
E2757C5A-3A95-4925-8E07-EC815ED2B624.jpeg
82B3FD9D-64C5-42E3-8D57-56D319CEB44C.jpeg
6532A031-C167-413C-BA74-03F0BF3B0532.jpeg
4A662854-D8B5-4796-A91A-C29BFF1ACD25.jpeg
1CBD154B-762D-45BB-B85C-D9BF2CC6F24C.jpeg

Re: My cx 25

Posted: Mon Mar 26, 2018 10:32 am
by Dougster
Wow, that's tight. Great day for the family. The only advice I can think of is to make sure you're next build in that shop isn't bigger 8O

Dougster

Re: My cx 25

Posted: Mon Mar 26, 2018 4:53 pm
by dalnilo
CB36A52C-48D6-4BED-B4CD-2AA4ABF918D5.jpeg
97F9A766-3B04-40B1-BDD1-FCE3D5E9D08F.jpeg
DD993809-7CB4-43F4-A4D3-E9A8B2413CC8.jpeg
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4495F802-D9C8-439D-B859-78FCD9A6103D.jpeg

Re: My cx 25

Posted: Mon Mar 26, 2018 4:59 pm
by dalnilo
E57F1FFE-7A91-4964-B9F6-1E383F946A1B.jpeg
8C954F69-58AF-4827-9AA3-5BCBFABD7424.jpeg
91EA7A0B-D8B9-46DF-985B-3A4FE7B45731.jpeg
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AF1EC4A0-4FFD-4BB0-89D7-846FD0EC3AA0.jpeg
380C762F-68F6-434F-8F8E-E05E1E2C35FF.jpeg

Re: My cx 25

Posted: Mon Mar 26, 2018 11:00 pm
by Fuzz
Now there is a nice slick flip :!:
Congratulations on getting that part done, it is always a nice mile stone to have in back of you :D

Re: My cx 25

Posted: Tue Mar 27, 2018 1:41 am
by dalnilo
Fuzz wrote: Mon Mar 26, 2018 11:00 pm Now there is a nice slick flip :!:
Congratulations on getting that part done, it is always a nice mile stone to have in back of you :D
thank you fuzz, and always a pleasure to receive appreciation, congratulations for such a particular job.

Re: My cx 25

Posted: Tue Mar 27, 2018 4:05 am
by gonandkarl
Hi,
What a perfect flip and I am in awe just like your son and daughter looking at the beautiful boat you are building in record time.
Keep up supplying us with pictures we love to see nice boats that seam to come together much faster than our own boats.
Greetings from Karl

Re: My cx 25

Posted: Thu Aug 09, 2018 9:58 am
by dalnilo
Hello to all,
with the work on the boat I go a bit 'slow due to work.
but I do not give up.
IMG_0513.JPG

Re: My cx 25

Posted: Thu Aug 09, 2018 10:04 am
by Jeff
That is a big girl!!! Jeff

Re: My cx 25

Posted: Thu Aug 09, 2018 10:48 am
by piperdown
Big girl and beautiful!

Re: My cx 25

Posted: Sat Aug 11, 2018 2:09 am
by fallguy1000
It is not a small rig.

I really like the bottom strakes.

Best of luck on it.

Re: My cx 25

Posted: Sat Aug 11, 2018 1:40 pm
by Eric1
Keep at it, She looks good!

Re: My cx 25

Posted: Sat Aug 11, 2018 2:58 pm
by OrangeQuest
I remember when you posted the pictures of your flip and was just amazed at the size and your pictures made it look easy. One thing you should never hear someone say, " I think we need a bigger boat! " It is big!

Re: My cx 25

Posted: Wed Sep 12, 2018 4:39 am
by muratugurlu
I cant imagine the size of boat. could you share boat photo with a person please.

Re: My cx 25

Posted: Thu Sep 13, 2018 7:35 am
by dalnilo
62E8773F-6ECD-466A-9C40-D2A7E9C76A33.jpeg
0590012C-BF9A-4CE7-AFCF-A634ACE9C53F.jpeg
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D8F9A435-C70D-4534-B011-FE4853FA163C.jpeg
1495A49D-FC5A-4EE0-A686-A0D39FBAE504.jpeg

Re: My cx 25

Posted: Thu Sep 13, 2018 7:36 am
by dalnilo
DC8B0E60-DEE2-4BF6-81D7-634CAF0A6C37.jpeg
1364FADF-5F6B-4EC6-945B-9235466A5F0A.jpeg

Re: My cx 25

Posted: Thu Sep 13, 2018 7:52 am
by thb
Danilo,

I am amazed by your build. Your bottom strakes look like what was on my previous 26 ft boat. That boat ran 42 kts with a single 250 etec. The strakes helped I think. What a beautiful job you are doing on her. The tanks look like they were custom built for your boat. How did you manage that? I assume all the stringers around the tanks will be glassed full height. You are going to have fun running the fuel fill hoses as these suckers are stiff as all get out.

Keep up the great job.

Regards
Tom in Steinhatchee

Re: My cx 25

Posted: Thu Sep 13, 2018 8:02 am
by Jeff
Nice build Danilo!! Glad to see you have some help there with this big build!! Jeff

Re: My cx 25

Posted: Thu Sep 13, 2018 8:34 am
by dalnilo
thb wrote: Thu Sep 13, 2018 7:52 am Danilo,

I am amazed by your build. Your bottom strakes look like what was on my previous 26 ft boat. That boat ran 42 kts with a single 250 etec. The strakes helped I think. What a beautiful job you are doing on her. The tanks look like they were custom built for your boat. How did you manage that? I assume all the stringers around the tanks will be glassed full height. You are going to have fun running the fuel fill hoses as these suckers are stiff as all get out.

Keep up the great job.

Regards
Tom in Steinhatchee
bye thank you
I found these tanks that are three centimeters wider and three centimeters taller,
I cover everything with glass fabric, I hope everything is fine

Re: My cx 25

Posted: Thu Sep 13, 2018 8:35 am
by dalnilo
if I get up on the floor of three centimeters, can I have problems?

Re: My cx 25

Posted: Thu Sep 13, 2018 8:38 am
by dalnilo
how should I connect the fuel loading pipes? with a t, to have a single filler neck.

Re: My cx 25

Posted: Thu Sep 13, 2018 8:50 am
by thb
Danilo,

I think I would keep the tanks totally separate so you can fill each one individually and adjust your cg depending on your fuel load. You can have a fuel feed 3 way valve which you can switch which tank is feeding the engine.

Other option is to turn tanks around so that fill and vent fittings are near each other and get a 1-1/2 inch brass Y or T fitting to connect them.

If tank fittings are higher than stringers you have other issue you need to solve to raise the sole in this area.

Regards
Tom

Re: My cx 25

Posted: Thu Sep 13, 2018 8:55 am
by OrangeQuest
Great to see updates on your big build! Great work!

Re: My cx 25

Posted: Thu Sep 13, 2018 9:00 am
by Eric1
Great Picture Danilo! The build is looking really nice.
I would raise the floor for the tanks. It should not be an issue.

Re: My cx 25

Posted: Thu Sep 13, 2018 9:57 am
by joe2700
If those tanks are polyethylene they will expand 2-3% of their size over the first month they have fuel in them. Make sure you have room for that between the stringer or it could damage the tanks or the stringers.

Re: My cx 25

Posted: Thu Sep 13, 2018 12:59 pm
by dalnilo
thb wrote: Thu Sep 13, 2018 8:50 am Danilo,

I think I would keep the tanks totally separate so you can fill each one individually and adjust your cg depending on your fuel load. You can have a fuel feed 3 way valve which you can switch which tank is feeding the engine.

Other option is to turn tanks around so that fill and vent fittings are near each other and get a 1-1/2 inch brass Y or T fitting to connect them.

If tank fittings are higher than stringers you have other issue you need to solve to raise the sole in this area.

Regards
Tom
thanks for the advices.
I think tanks connect them in a single shipment, so I install less pipes.
as regards the boarding connection, I resolve by raising the floor by three cm.

Re: My cx 25

Posted: Thu Sep 13, 2018 1:03 pm
by dalnilo
OrangeQuest wrote: Thu Sep 13, 2018 8:55 am Great to see updates on your big build! Great work!
👍👍👍👍

Re: My cx 25

Posted: Thu Sep 13, 2018 1:05 pm
by dalnilo
Eric1 wrote: Thu Sep 13, 2018 9:00 am Great Picture Danilo! The build is looking really nice.
I would raise the floor for the tanks. It should not be an issue.
👍👍👍👍

Re: My cx 25

Posted: Thu Sep 13, 2018 1:10 pm
by dalnilo
joe2700 wrote: Thu Sep 13, 2018 9:57 am If those tanks are polyethylene they will expand 2-3% of their size over the first month they have fuel in them. Make sure you have room for that between the stringer or it could damage the tanks or the stringers.
I'm sorry but if I put foam all around, I would have the same problem?

Re: My cx 25

Posted: Thu Sep 13, 2018 1:18 pm
by joe2700

I'm sorry but if I put foam all around, I would have the same problem?
You can't foam around polyethylene tanks for that reason.

Example instructions: https://www.jamestowndistributors.com/u ... docId=1025
IMPORTANT: Do not use foam to secure tank in place. Resin fuel tanks require a multidimensional expansion area of 2.3% at all times; foaming a tank in place removes the chance for hydrocarbon expansion and will void tank warranty.

Re: My cx 25

Posted: Thu Sep 13, 2018 1:27 pm
by Jaysen
joe2700 wrote: Thu Sep 13, 2018 1:18 pm

I'm sorry but if I put foam all around, I would have the same problem?
You can't foam around polyethylene tanks for that reason.

Example instructions: https://www.jamestowndistributors.com/u ... docId=1025
IMPORTANT: Do not use foam to secure tank in place. Resin fuel tanks require a multidimensional expansion area of 2.3% at all times; foaming a tank in place removes the chance for hydrocarbon expansion and will void tank warranty.
Does that mean that actual tank capacity is variable? EX if you have a half full tank, the tank may expand inward making the "empty" portion less than the actual volume of 1/2 the tank capacity.

Or would that only happen if the tank was restricted from expansion?

Thanks.

Re: My cx 25

Posted: Thu Sep 13, 2018 1:34 pm
by joe2700
Jaysen wrote: Thu Sep 13, 2018 1:27 pm
Does that mean that actual tank capacity is variable? EX if you have a half full tank, the tank may expand inward making the "empty" portion less than the actual volume of 1/2 the tank capacity.

Or would that only happen if the tank was restricted from expansion?

Thanks.
I'm under the impression it's kind of a one time thing, and that once it's grown over that first month it will basically stay expanded, unless maybe you let it completely air out for a long time. I think if you restrict it from expanding outwards like its supposed to it may deform. All this is conjecture on my part though. Just what I've gathered from the manufacturers instructions and Boatowners Mechanical and Electrical Manual which I kind of consider the bible of marine systems.

Re: My cx 25

Posted: Thu Sep 13, 2018 1:35 pm
by joe2700
joe2700 wrote: Thu Sep 13, 2018 1:34 pm
Jaysen wrote: Thu Sep 13, 2018 1:27 pm
Does that mean that actual tank capacity is variable? EX if you have a half full tank, the tank may expand inward making the "empty" portion less than the actual volume of 1/2 the tank capacity.

Or would that only happen if the tank was restricted from expansion?

Thanks.
I'm under the impression it's kind of a one time thing, and that once it's grown over that first month it will basically stay expanded, unless maybe you let it completely air out for a long time. I think if you restrict it from expanding outwards like its supposed to it may deform. All this is conjecture on my part though. Just what I've gathered from the manufacturers instructions and Boatowners Mechanical and Electrical Manual which I kind of consider the bible of marine systems.

I think you actually get a bit more capacity after this process is done, as it's expanding lengthwise not just getting thicker, not positive though.

Re: My cx 25

Posted: Thu Sep 13, 2018 1:39 pm
by Jaysen
Hmmm... seems like a simple chem bath at manufacture would address that.

What do I know?

Re: My cx 25

Posted: Thu Sep 13, 2018 5:51 pm
by fallguy1000
The expansion and contraction is thermal. Boat in Bahamas and it is 100F the fuel expands and the tank expands.

The expansion of a 1 meter polyethylene tank from 23C to 40c is about 0.3cm

It isn't a one n done.

If the temperature drops to say 6C, the tank will go from the expanded size at 40C down to normal size at 23C and then shrink to 0.3cm below a meter at 6C.

Danilo - leave a good size gap between the tanks; like a full inch or at least about 3/4" minimum.

And no foam.

Foam is also not advisable in ally tanks. The tanks needs space for thermal expansion.

Re: My cx 25

Posted: Thu Sep 13, 2018 6:28 pm
by joe2700
fallguy1000 wrote: Thu Sep 13, 2018 5:51 pm The expansion and contraction is thermal.
That may also be true, but polyethylene definitely expands when exposed to gasoline.

From Moeller as an example:
Allow 3% expansion of the fuel tank in all directions. Hydrocarbon swell occurs when gasoline or diesel fuel soaks into the fuel tank material. (Example: Initial size 40"L x 24"W x 18"H = Expanded size 41.2"L x 24.7"W x 18.5"H) Design the fuel tank compartment to allow growth equally. Hold down brackets / braces must be installed to prevent damage to the fuel tank even after hydrocarbon expansions occur.
http://moellermarine.com/wp-content/upl ... marine.pdf

Re: My cx 25

Posted: Thu Sep 13, 2018 9:03 pm
by fallguy1000
joe2700 wrote: Thu Sep 13, 2018 6:28 pm
fallguy1000 wrote: Thu Sep 13, 2018 5:51 pm The expansion and contraction is thermal.
That may also be true, but polyethylene definitely expands when exposed to gasoline.

From Moeller as an example:
Allow 3% expansion of the fuel tank in all directions. Hydrocarbon swell occurs when gasoline or diesel fuel soaks into the fuel tank material. (Example: Initial size 40"L x 24"W x 18"H = Expanded size 41.2"L x 24.7"W x 18.5"H) Design the fuel tank compartment to allow growth equally. Hold down brackets / braces must be installed to prevent damage to the fuel tank even after hydrocarbon expansions occur.
http://moellermarine.com/wp-content/upl ... marine.pdf
Thanks. I learned something today. I couldn't understand how the amounts were so much lower than the allowances I am using on my own build to meet 2.5%. I have a 47" tank and have a 48" space, so I am just a tad over the 2% amount. The tank is surrounded by bulkheads and they aren't moving. The good news is I have an extra inch on the width as well, so that will give me a little extra, but in the wrong direction.

Anyhow, hopefully with all this advice, Danilo will build properly.

Re: My cx 25

Posted: Fri Sep 14, 2018 12:32 pm
by dalnilo
ok no foam on the sides of the tank, under the tank I can put according to you?

Re: My cx 25

Posted: Fri Sep 14, 2018 12:43 pm
by joe2700
dalnilo wrote: Fri Sep 14, 2018 12:32 pm ok no foam on the sides of the tank, under the tank I can put according to you?
I would defer to the instructions of whoever manufactured your tank. Generally tanks like this are mounted on a hard surface with neoprene strips between the tank and the support.That would be a lot of weight to put foam under and I wouldn't want foam up against a fuel tank myself anyway. But whoever built the tank should have instructions. Personally I wouldn't foam that compartment at all.

Re: My cx 25

Posted: Fri Sep 14, 2018 2:28 pm
by Fuzz
I think the rubber strips are something needed for aluminium tanks. I do not think they are needed for plastic tanks. But as advised check with the manufacturer and do as they say.

Re: My cx 25

Posted: Fri Sep 14, 2018 6:01 pm
by danieloldhouse
Are those tanks HT-Tanks from Nautica FAM?

Re: My cx 25

Posted: Sat Sep 15, 2018 2:55 am
by dalnilo
danieloldhouse wrote: Fri Sep 14, 2018 6:01 pm Are those tanks HT-Tanks from Nautica FAM?
Ciao
Sono osculati

Re: My cx 25

Posted: Sat Sep 15, 2018 3:09 am
by dalnilo
Fuzz wrote: Fri Sep 14, 2018 2:28 pm I think the rubber strips are something needed for aluminium tanks. I do not think they are needed for plastic tanks. But as advised check with the manufacturer and do as they say.
I will probably use a similar product
Extruded physical cross-linked extruded polyethylene Density: 30/33 Kg / mc Color: anthracite gray Thicknesses available: from 2 to 12 mm Material description: Closed cell polyethylene foam. Extruded lattice. Excellent physical properties in the static and dynamic field, elasticity, thermal deformability, shock absorption. Thermal insulation, minimum water absorption, low water vapor permeability, resistance to water atmospheric agents, non-polluting, behavior inert chemical. Applications: boating, sporting goods, packaging, camping, construction industry, automotive, healthcare, lighting.
EE08B53D-8E33-4D08-A756-35D787049415.jpeg

Re: My cx 25

Posted: Sat Sep 15, 2018 4:11 am
by danieloldhouse
dalnilo wrote: Sat Sep 15, 2018 2:55 am
danieloldhouse wrote: Fri Sep 14, 2018 6:01 pm Are those tanks HT-Tanks from Nautica FAM?
Ciao
Sono osculati
Thanks, how much have you paid for them?

Grazie, quanto hai speso?

Re: My cx 25

Posted: Sat Sep 15, 2018 4:40 am
by dalnilo
danieloldhouse wrote: Sat Sep 15, 2018 4:11 am
dalnilo wrote: Sat Sep 15, 2018 2:55 am
danieloldhouse wrote: Fri Sep 14, 2018 6:01 pm Are those tanks HT-Tanks from Nautica FAM?
Ciao
Sono osculati
Thanks, how much have you paid for them?

Grazie, quanto hai speso?
600 € for the couple

Re: My cx 25

Posted: Sat Sep 15, 2018 6:49 am
by danieloldhouse
Ohh, I believe it's a very good price

Re: My cx 25

Posted: Sat Sep 15, 2018 6:59 am
by dalnilo
danieloldhouse wrote: Sat Sep 15, 2018 6:49 am Ohh, I believe it's a very good price
I bought them both because they do not corrode and because of the good cost on the other hand, you only need to raise the floor by 3cm

Re: My cx 25

Posted: Sat Sep 15, 2018 7:34 am
by danieloldhouse
dalnilo wrote: Sat Sep 15, 2018 6:59 am
danieloldhouse wrote: Sat Sep 15, 2018 6:49 am Ohh, I believe it's a very good price
I bought them both because they do not corrode and because of the good cost on the other hand, you only need to raise the floor by 3cm
It really seems they were built for your boat, what's the capacity of each one?
Raising the floor of 3cm is very easy, just add a wood strip on the top of the stringers and you're ok, in a big boat like that 3cm is nothing :wink:

Re: My cx 25

Posted: Sat Sep 15, 2018 7:45 am
by cape man
A vented tank is required to eliminate thermal expansion. All the expansion on a poly tank is chemical if vented. The liquid fuel doesn't shrink or expand with temp change, it's the gas vapor above.

Re: My cx 25

Posted: Sat Sep 15, 2018 3:21 pm
by dalnilo
in your opinion what is the right fitting for the assembly? the drawings say about 20cm on the side but do not say height
in your opinion what is the right fitting for the assembly? the drawings say about 20cm on the side but do not say height
in your opinion what is the right fitting for the assembly? the drawings say about 20cm on the side but do not say height

Re: My cx 25

Posted: Sun Sep 16, 2018 3:03 am
by dalnilo
5E6AB370-268D-4283-B828-A4D81C20E016.jpeg
E42DDC8C-2166-4EF5-961F-6546C07AB33A.jpeg
63424CC5-BA07-413B-A83B-1C0A621EDBEC.jpeg

Re: My cx 25

Posted: Sun Sep 16, 2018 6:46 am
by thb
Dainilo,

Those are very nice looking eyes. I think placement of the stern eyes depends on what they will be used for. Is this boat going to be trailered? If so, I would place them about where you are holding them. What else would they be used for? If for towing someone, I would place them higher. I am not sure about using them to lift the vessel, but if that is the purpose of having them, then place them higher as well.

I placed mine on the FS17 about 2 inches down from the top of the transom and about 3 inches in from the sides.

Your work is looking great. What a huge boat.

P/S I lived in Naples as a boy for 2 years while my dad was stationed there.

Regards
Tom in Steinhatchee

Re: My cx 25

Posted: Sun Sep 16, 2018 10:17 am
by dalnilo
thb wrote: Sun Sep 16, 2018 6:46 am Dainilo,

Those are very nice looking eyes. I think placement of the stern eyes depends on what they will be used for. Is this boat going to be trailered? If so, I would place them about where you are holding them. What else would they be used for? If for towing someone, I would place them higher. I am not sure about using them to lift the vessel, but if that is the purpose of having them, then place them higher as well.

I placed mine on the FS17 about 2 inches down from the top of the transom and about 3 inches in from the sides.

Your work is looking great. What a huge boat.

P/S I lived in Naples as a boy for 2 years while my dad was stationed there.

Regards
Tom in Steinhatchee
fantastic
I think I use it either to tow or maybe even to do water skiing
beautiful Naples

Re: My cx 25

Posted: Thu Sep 20, 2018 9:30 am
by dalnilo
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B15CDF5D-92F4-45E9-A8FF-812EB11C69C6.jpeg

Re: My cx 25

Posted: Thu Sep 20, 2018 9:39 am
by piperdown
Nice! You are moving right along and the build looks great!

Re: My cx 25

Posted: Thu Sep 20, 2018 11:30 am
by dalnilo
4E61EEA1-BC88-413F-BC61-FB5B1F1DA237.jpeg
I ask you for information.
I can laminate everything at once.
beams and crosspieces?

Re: My cx 25

Posted: Thu Sep 20, 2018 11:47 am
by narfi
You can, but plan ahead. It is a lot of work and depending on temperatures and hardener speed, your first mix of epoxy will be gelled before you finish.

Re: My cx 25

Posted: Thu Sep 20, 2018 11:51 am
by Jeff
Really good guidance Narfi!!! Jeff

Re: My cx 25

Posted: Thu Sep 20, 2018 12:23 pm
by dalnilo
16C2FE02-BAE0-4234-A448-F091E2D8CF9A.jpeg
Thanks for the reply
I did not mean to do the job all at once, but one at a time.
I can do it?
thanks for collaboration

Re: My cx 25

Posted: Thu Sep 20, 2018 12:57 pm
by narfi
Good question....
I am not sure, but I think I would glass the stringers first, then after it is cured place in the bulkheads.
Like I said I am not sure, and though I doubt it really matters too much, my logic is that you have long glass beams if you glass the stringer all at once, where if you have the bulkheads in place it breaks up that long beam and is just wood in areas. I dont know though, I am not the designer, nor am I an engineer :) Hopefully someone smarter than me can help you with that question.

Re: My cx 25

Posted: Thu Sep 20, 2018 1:31 pm
by OrangeQuest
Check your plans, it should say tape the stringers first and then the frames. Should also tell you what kind of tape and if you layer them.

Re: My cx 25

Posted: Thu Sep 20, 2018 2:53 pm
by Eric1
I'm by no means an expert. That said, In my minds eye, I see the stringers as the backbone and the frames as ribs.
So to me I'm glass the stringers first to spread as much strength along the length of the hull. The the frames go in and get glassed
To stiffen the structure as a whole. Remember I'm not a pro but this makes sense in my head, and that in and of itself is scary.

Re: My cx 25

Posted: Wed Oct 24, 2018 7:36 am
by muratugurlu
Thank you for your pictures
you are my guide.
following you.

Re: My cx 25

Posted: Fri Oct 26, 2018 8:16 am
by dalnilo
29AEC51C-C117-49F0-9D2C-A7FDFEB7EB9A.jpeg
0B50A8D9-6B93-4D2B-B8D0-BAD557469CE3.jpeg
9808585E-537C-43BC-B943-E0A36C17962B.jpeg
3A45B235-EBFD-44A4-A384-5D2B20BCB6AC.jpeg

Re: My cx 25

Posted: Fri Oct 26, 2018 8:22 am
by Jeff
Nice, clean work on this huge boat!! Jeff

Re: My cx 25

Posted: Fri Oct 26, 2018 10:00 am
by OrangeQuest
It is a nice clean and big boat.

I remember some pictures of a couple of kids helping you. Now that it is flipped and the frames are going in do you take a head count every time you finish for the day? :D

Re: My cx 25

Posted: Fri Oct 26, 2018 10:25 am
by dalnilo
these photos are about two weeks, this shot now!
image.jpg
I did not understand the question correctly, with the translation.
do I usually work in the evening?
thank you

Re: My cx 25

Posted: Fri Oct 26, 2018 10:37 am
by piperdown
I think OQ means, do you have to check inside the boat before leaving so you don't leave any kids behind....... :D

Re: My cx 25

Posted: Fri Oct 26, 2018 10:55 am
by dalnilo
:lol: :lol: :lol: :lol:

Re: My cx 25

Posted: Fri Oct 26, 2018 12:28 pm
by Eric1
Looking Good Danilo! Tanti auguri dall'America! :D

Re: My cx 25

Posted: Mon Oct 29, 2018 5:10 am
by muratugurlu
facendo un lavoro perfetto

Re: My cx 25

Posted: Mon Oct 29, 2018 3:21 pm
by muratugurlu
Will you drill holes for drenage of water between compartments?

Re: My cx 25

Posted: Sun Nov 04, 2018 1:47 pm
by dalnilo
I think I can froth all the side compartments, leave all the power stations empty where I will put them,
petrol tanks, water tanks, bow thruster, pumps etc.

Re: My cx 25

Posted: Sun Nov 04, 2018 1:54 pm
by dalnilo
sorry but the bilge pump where it goes put?

Re: My cx 25

Posted: Sun Nov 04, 2018 2:05 pm
by dalnilo
depending on the slope I should put it where marked in red
depending on the slope I should put it where marked in red

Re: My cx 25

Posted: Mon Nov 05, 2018 8:53 am
by pee wee
Looking great, Dalnilo! You want the bilge pump at the lowest point that water can collect, and generally the slope goes toward the transom, so as far aft as water can go should be the place.

Re: My cx 25

Posted: Mon Nov 05, 2018 9:53 am
by Eric1
That is a lot of frame work! It looks great!

Re: My cx 25

Posted: Mon Nov 05, 2018 1:50 pm
by danieloldhouse
Hi Dalnilo are you ok? I've seen the images about the flood in Sicily, just terrible :( I hope you and your family are safe

Re: My cx 25

Posted: Thu Nov 08, 2018 1:48 am
by dalnilo
danieloldhouse wrote: Mon Nov 05, 2018 1:50 pm Hi Dalnilo are you ok? I've seen the images about the flood in Sicily, just terrible :( I hope you and your family are safe
Tutto bene grazie, finalmente il sole 🌞

Re: My cx 25

Posted: Thu Nov 08, 2018 10:34 am
by danieloldhouse
dalnilo wrote: Thu Nov 08, 2018 1:48 am
danieloldhouse wrote: Mon Nov 05, 2018 1:50 pm Hi Dalnilo are you ok? I've seen the images about the flood in Sicily, just terrible :( I hope you and your family are safe
Tutto bene grazie, finalmente il sole 🌞
Ottimo! Prima o poi devo venire a vedere di persona la tua creatura :wink:

Great! One of these days I must come and see your creation

Re: My cx 25

Posted: Sat Nov 17, 2018 4:03 pm
by dalnilo
what a struggle and what we do this job
2394D65E-EBD7-4985-B0A3-445735D8145E.jpeg
14D2F676-0FDE-46B9-926E-5F0D5AF100DD.jpeg
76810BBA-9C3A-4BC0-9EF5-E129D6B0C955.jpeg
F96CA46F-5AD7-4220-AC00-6B64B567AD22.jpeg

Re: My cx 25

Posted: Sat Nov 17, 2018 4:07 pm
by Eric1
Amen! Frames are not fun!

Re: My cx 25

Posted: Sat Nov 17, 2018 5:46 pm
by OrangeQuest
My little boat was a pain for me I hate to think what you bigger boat guys must go through but your tape does look good.

Re: My cx 25

Posted: Mon Nov 19, 2018 9:08 am
by Dougster
Wow. Seeing the pic of the frames makes me want to pop some ibuprofen! Lotta work, but think of all the strength you've just added.

Dougster

Re: My cx 25

Posted: Fri Jan 25, 2019 8:05 am
by dalnilo
Hi everyone,
sorry for the absence I did not have time to follow the forum.
finalmelte I changed the type of work that you see in the photos seems less boring.
let me know what you think.
I would like advice on the plants.

Re: My cx 25

Posted: Fri Jan 25, 2019 8:09 am
by dalnilo
IMG_2418.JPG
IMG_2420.JPG
IMG_2422.JPG
IMG_2429.JPG
IMG_2430.JPG
IMG_2431.JPG
IMG_2432.JPG

Re: My cx 25

Posted: Fri Jan 25, 2019 8:18 am
by dalnilo
I arrived at this point
1C008E7F-7903-4086-9FA1-52D9ECB4D53A.jpeg
F6271493-25F7-4320-BE3E-C768A30C34D5.jpeg
6013F1D7-BEFE-4C9E-921A-B1706D358294.jpeg

Re: My cx 25

Posted: Fri Jan 25, 2019 9:59 am
by hbav984
Dalnilo,

Looks good man!

Re: My cx 25

Posted: Fri Jan 25, 2019 10:06 am
by piperdown
What are the big tubes running along both sides of the hull? Are they for lights up front?

You are making good progress! :D

Re: My cx 25

Posted: Fri Jan 25, 2019 10:35 am
by dalnilo
:lol: :lol: :lol:
Those on the right are for fuel pipes, the one on the left along the engine hull.hull.
I am a project, I think they are reinforcing.

Re: My cx 25

Posted: Fri Jan 25, 2019 10:37 am
by dalnilo
C4B2FCCC-1F89-444F-BC3A-8BDAFF07A681.jpeg
AB2ED8B9-AF0A-40FA-9F8A-1BD2A396A087.jpeg

Re: My cx 25

Posted: Fri Jan 25, 2019 10:40 am
by dalnilo
piperdown wrote: Fri Jan 25, 2019 10:06 am What are the big tubes running along both sides of the hull? Are they for lights up front?

You are making good progress! :D
I am a project, I think they are reinforcing.

Re: My cx 25

Posted: Fri Jan 25, 2019 2:38 pm
by piperdown
dalnilo wrote: Fri Jan 25, 2019 10:40 am
piperdown wrote: Fri Jan 25, 2019 10:06 am What are the big tubes running along both sides of the hull? Are they for lights up front?

You are making good progress! :D
I am a project, I think they are reinforcing.
Okay, that makes sense. Stiffeners then to reduce side flex.

Re: My cx 25

Posted: Fri Jan 25, 2019 3:09 pm
by dalnilo
piperdown wrote: Fri Jan 25, 2019 2:38 pm
dalnilo wrote: Fri Jan 25, 2019 10:40 am
piperdown wrote: Fri Jan 25, 2019 10:06 am What are the big tubes running along both sides of the hull? Are they for lights up front?

You are making good progress! :D
I am a project, I think they are reinforcing.
Okay, that makes sense. Stiffeners then to reduce side flex.
I think so. this and what the project says

15. Topside longitudinal stiffener is required from frame E transom.
Typically made of 13 of a 51Ø PVC pipe fiberglassed with 1 layer biaxial tape or 2 layers 102mm woven. Stiffeners fits between frames

Re: My cx 25

Posted: Fri Jan 25, 2019 5:02 pm
by piperdown
dalnilo wrote: Fri Jan 25, 2019 3:09 pm
piperdown wrote: Fri Jan 25, 2019 2:38 pm
dalnilo wrote: Fri Jan 25, 2019 10:40 am

I am a project, I think they are reinforcing.
Okay, that makes sense. Stiffeners then to reduce side flex.
I think so. this and what the project says

15. Topside longitudinal stiffener is required from frame E transom.
Typically made of 13 of a 51Ø PVC pipe fiberglassed with 1 layer biaxial tape or 2 layers 102mm woven. Stiffeners fits between frames
That's seems to be a good way to do it. Build on!

Re: My cx 25

Posted: Mon Feb 11, 2019 10:12 am
by dalnilo
1DD41EEC-1D45-4815-A4D2-11AB4E625799.jpeg
8C3CBB20-7F23-4175-A9AB-FF6437F2394E.jpeg
8C3CBB20-7F23-4175-A9AB-FF6437F2394E.jpeg

Re: My cx 25

Posted: Mon Feb 11, 2019 10:13 am
by dalnilo
90A0BBE6-11E7-4960-95C7-D11FF284023F.jpeg
finally they arrived

Re: My cx 25

Posted: Mon Feb 11, 2019 10:25 am
by Jeff
Very nice clean work!! Jeff

Re: My cx 25

Posted: Mon Feb 11, 2019 10:55 am
by dalnilo
Jeff wrote: Mon Feb 11, 2019 10:25 am Very nice clean work!! Jeff
thank you

Re: My cx 25

Posted: Mon Feb 11, 2019 2:28 pm
by Fuzz
Like Jeff said, really nice looking work.

Re: My cx 25

Posted: Tue Feb 12, 2019 6:09 pm
by dalnilo
673CD5AB-334B-4E55-A246-853FB8DC750E.jpeg
15911C63-E25E-4DB9-BF77-7DF6F1F4D728.jpeg
1F038066-4F6D-4D97-BD81-F1C318356BEF.jpeg

Re: My cx 25

Posted: Tue Feb 12, 2019 6:10 pm
by dalnilo
B1B78AF3-0AB6-4240-B2F2-28BCB6221DBB.jpeg
D5609669-2DB8-4333-B9FC-9DFCAA125899.jpeg
2E7624B2-0BDD-419B-BF04-EF4749886CF5.jpeg

Re: My cx 25

Posted: Tue Feb 12, 2019 6:35 pm
by TomW1
Love the scuppers. That is what they all should be like on boats over 17" Adjusted for size, 5-11".

Tom

Re: My cx 25

Posted: Wed Feb 13, 2019 7:17 am
by topwater
That looks real familiar :!: They move a lot of water quickly 8)

Re: My cx 25

Posted: Wed Feb 13, 2019 12:50 pm
by dalnilo
topwater wrote: Wed Feb 13, 2019 7:17 am That looks real familiar :!: They move a lot of water quickly 8)
I reviewed your construction. congratulations is fantastic.
for the scupper I can follow the inclination of the transom I have to put it straight as you did?

Re: My cx 25

Posted: Wed Feb 13, 2019 12:51 pm
by dalnilo
TomW1 wrote: Tue Feb 12, 2019 6:35 pm Love the scuppers. That is what they all should be like on boats over 17" Adjusted for size, 5-11".

Tom
so I have to tilt it from the 5° to 11°?

Re: My cx 25

Posted: Thu Feb 14, 2019 7:33 am
by topwater
Mine were mounted right to the transom , i think if you check out peters c25 build he made wedges to go between the transom
and the scuppers .

Re: My cx 25

Posted: Thu Feb 14, 2019 7:51 am
by dalnilo
topwater wrote: Thu Feb 14, 2019 7:33 am Mine were mounted right to the transom , i think if you check out peters c25 build he made wedges to go between the transom
and the scuppers .
from the photos it does not seem.
you have more detailed photos?
THANK YOU

Re: My cx 25

Posted: Fri Feb 15, 2019 7:32 am
by topwater
For some reason i cant post pic's right now :x The only pic's i have are in my gallery
Topwater NV 23.

Re: My cx 25

Posted: Fri Feb 15, 2019 8:01 am
by dalnilo
topwater wrote: Fri Feb 15, 2019 7:32 am For some reason i cant post pic's right now :x The only pic's i have are in my gallery
Topwater NV 23.
👌

Re: My cx 25

Posted: Thu Feb 28, 2019 12:47 pm
by FinsUp
What a rad build! Great job.

Re: My cx 25

Posted: Thu Feb 28, 2019 3:25 pm
by dalnilo
FinsUp wrote: Thu Feb 28, 2019 12:47 pm What a rad build! Great job.
thank you

Re: My cx 25

Posted: Fri Mar 01, 2019 5:38 am
by dalnilo
IMG_2614.JPG
IMG_2596.JPG
IMG_2594.JPG

Re: My cx 25

Posted: Fri Mar 01, 2019 5:41 am
by dalnilo
IMG_2612.JPG
IMG_2618.JPG
IMG_2620.JPG
IMG_2668.JPG

Re: My cx 25

Posted: Fri Mar 01, 2019 5:41 am
by dalnilo
I'm working for plants and tanks.
I wanted to ask if, under the tanks, froth and resinate the empty parts, can I avoid putting the PVC pipe?
the bulkheads will all be foamed.

Re: My cx 25

Posted: Fri Mar 01, 2019 11:50 am
by dalnilo
108298FD-F342-47F1-B469-A05C5CF5DDCA.jpeg

Re: My cx 25

Posted: Fri Mar 01, 2019 12:36 pm
by jacquesmm
What you show will work fine.

Re: My cx 25

Posted: Fri Mar 01, 2019 12:58 pm
by dalnilo
jacquesmm wrote: Fri Mar 01, 2019 12:36 pm What you show will work fine.
sorry but I want to be sure of the work to do.
foam under the tank without putting the PVC pipe ok?
607104B0-906B-41E1-A6C6-63E44AF55303.jpeg

Re: My cx 25

Posted: Fri Mar 01, 2019 1:44 pm
by dalnilo
0A985D05-8557-46A7-8820-3829986C69BD.jpeg
the foam does not touch the tank because I put the rubber around.

Re: My cx 25

Posted: Fri Mar 01, 2019 1:51 pm
by dalnilo
6B180E98-9D3A-4649-9252-6409D035EF57.jpeg

Re: My cx 25

Posted: Sun Mar 03, 2019 11:50 am
by dalnilo
311048F6-C7D5-40D8-AD5E-2A92BE1422DF.jpeg
9B53A033-E383-402F-A22B-81D698802F3F.jpeg
this will be resined under the tank

Re: My cx 25

Posted: Tue Mar 05, 2019 1:34 pm
by BB Sig
Looks nice and clean! 8)

Re: My cx 25

Posted: Wed Mar 06, 2019 12:30 pm
by dalnilo
BB Sig wrote: Tue Mar 05, 2019 1:34 pm Looks nice and clean! 8)
:D :D

Re: My cx 25

Posted: Wed Mar 06, 2019 12:35 pm
by dalnilo
IMG_2757.JPG
IMG_2763.JPG

Re: My cx 25

Posted: Wed Mar 06, 2019 12:45 pm
by Jeff
Really clean work!!! Jeff

Re: My cx 25

Posted: Wed Mar 06, 2019 12:47 pm
by Jeff
Really clean work!!! Jeff

Re: My cx 25

Posted: Wed Mar 06, 2019 12:49 pm
by dalnilo
Jeff wrote: Wed Mar 06, 2019 12:47 pm Really clean work!!! Jeff
thank you

Re: My cx 25

Posted: Wed Mar 06, 2019 7:59 pm
by peter-curacao
dalnilo wrote: Fri Mar 01, 2019 5:38 am IMG_2614.JPGIMG_2596.JPGIMG_2594.JPG
Having a deja vu here :lol: :lol: Boat looks good!

Re: My cx 25

Posted: Thu Mar 07, 2019 2:00 am
by dalnilo
peter-curacao wrote: Wed Mar 06, 2019 7:59 pm
dalnilo wrote: Fri Mar 01, 2019 5:38 am IMG_2614.JPGIMG_2596.JPGIMG_2594.JPG
Having a deja vu here :lol: :lol: Boat looks good!
:D :D :lol: :lol:

Re: My cx 25

Posted: Thu Mar 07, 2019 9:21 pm
by fallguy1000
Nice work.

I see you even used some peelply for the tank glassing.

What was the foam?

Re: My cx 25

Posted: Fri Mar 08, 2019 3:06 am
by dalnilo
fallguy1000 wrote: Thu Mar 07, 2019 9:21 pm Nice work.

I see you even used some peelply for the tank glassing.

What was the foam?
polyurethane yellow, blue extruded polystyrene

Re: My cx 25

Posted: Fri Mar 08, 2019 6:23 pm
by dalnilo
DD53BB39-DE90-4270-AE5A-7D31AA7CAFE6.jpeg
099C6D1C-26C9-4294-96C0-F46E036A4F91.jpeg

Re: My cx 25

Posted: Fri Mar 08, 2019 7:47 pm
by hbav984
Looking good!

GH

Re: My cx 25

Posted: Thu May 16, 2019 2:11 pm
by dalnilo
Hi everyone, slowly go ahead
IMG_3372.jpg
IMG_3379.jpg

Re: My cx 25

Posted: Thu May 16, 2019 2:13 pm
by dalnilo
technical tests
IMG_3396.jpg
IMG_3393.jpg

Re: My cx 25

Posted: Thu May 16, 2019 4:22 pm
by danieloldhouse
Looking good! Very nice work.

Re: My cx 25

Posted: Sat Jul 13, 2019 2:31 pm
by dalnilo
Y9Uvc25cSDKM1hXskgoG0A.jpg

Re: My cx 25

Posted: Sat Jul 13, 2019 3:00 pm
by hbav984
Looking good!!

Re: My cx 25

Posted: Fri Sep 06, 2019 11:33 am
by dalnilo
hallo, here is the construction of my bracket
IMG_3496.jpg
IMG_3558.jpg
IMG_3560.jpg
IMG_3563.jpg
IMG_3564.jpg
IMG_3579.jpg
IMG_3624.jpg

Re: My cx 25

Posted: Fri Sep 06, 2019 11:44 am
by dalnilo
IMG_3670.jpg
IMG_3698.jpg
IMG_3699.jpg
IMG_4055.jpg
IMG_4056.jpg
IMG_4063.jpg

Re: My cx 25

Posted: Fri Sep 06, 2019 1:36 pm
by Jeff
Nice progress!!! Jeff

Re: My cx 25

Posted: Thu Sep 12, 2019 4:00 pm
by FinsUp
Wow! I always amazed at the skill of the builders here.

Re: My cx 25

Posted: Fri Sep 13, 2019 10:55 am
by dalnilo
thanks the compliments are good, they give me charge.

Re: My cx 25

Posted: Fri Sep 13, 2019 1:49 pm
by hbav984
Dalnilo,

Where did you get the design for the bracket.

Good work also.

Thanks

Re: My cx 25

Posted: Fri Sep 13, 2019 1:52 pm
by dalnilo
hbav984 wrote: Fri Sep 13, 2019 1:49 pm Dalnilo,

Where did you get the design for the bracket.

Good work also.

Thanks
I was inspired by various topics. peter's is one of them

Re: My cx 25

Posted: Fri Sep 13, 2019 1:53 pm
by hbav984
Looks great! Can’t wait to see it finished!

Re: My cx 25

Posted: Thu Jan 02, 2020 7:08 am
by dalnilo
hello, I update you with photos on what little I have done.

Re: My cx 25

Posted: Thu Jan 02, 2020 7:11 am
by dalnilo
IMG_4325.jpeg
IMG_4326.jpeg
IMG_4327.jpeg
IMG_4330.jpeg
IMG_4830.jpeg
IMG_4831.jpeg
IMG_4836.jpeg
IMG_4841.jpeg

Re: My cx 25

Posted: Thu Jan 02, 2020 9:27 am
by Eric1
Wow! Lots of good progress! I'm envious and wish I was that far along!! :D

Re: My cx 25

Posted: Thu Jan 02, 2020 9:51 am
by dalnilo
Eric1 wrote: Thu Jan 02, 2020 9:27 am Wow! Lots of good progress! I'm envious and wish I was that far along!! :D
thanks Eric, it seems to me to be on the high seas

Re: My cx 25

Posted: Thu Jan 02, 2020 10:22 pm
by RiggsWNC
Stunning, you must be so proud of what you have so far. Just imagine when you’re on the water.

Re: My cx 25

Posted: Fri Jan 03, 2020 4:36 am
by dalnilo
:D :D :D
RiggsWNC wrote: Thu Jan 02, 2020 10:22 pm Stunning, you must be so proud of what you have so far. Just imagine when you’re on the water.

Re: My cx 25

Posted: Mon Apr 06, 2020 5:24 am
by dalnilo
good morning,
I wanted to ask why I have already consumed 266 kg of resin where am I wrong? I haven't finished the construction yet, maybe they will consume another 30 kg.

Re: My cx 25

Posted: Mon Apr 06, 2020 12:38 pm
by jacquesmm
https://forums.bateau2.com/viewtopic.php?f=8&t=51737

This is particularly important for a large boat with a cabin. I calculate the BOM based on the hull with deck and framing then add the cabin supplies but there many opportunities to use more resin.

Re: My cx 25

Posted: Mon Apr 06, 2020 2:01 pm
by dalnilo
jacquesmm wrote: Mon Apr 06, 2020 12:38 pm https://forums.bateau2.com/viewtopic.php?f=8&t=51737

This is particularly important for a large boat with a cabin. I calculate the BOM based on the hull with deck and framing then add the cabin supplies but there many opportunities to use more resin.
yes, actually one more layer makes the difference, if then we put the errors, a little more putty and accessories, thanks Jacques

Re: My cx 25

Posted: Mon Apr 06, 2020 2:09 pm
by dalnilo
n8AhLWtYRTSq4fO7ABfRvA.jpg
6XlFyW2eQwmyXhSATFtltQ.jpg
85gB0RpxS3mib5g8PI09rw.jpg
bPA2AzLGS2iJnbuptIevSA.jpg
tAWIaXcjT4+eP6+XtRYhRQ.jpg
uWYCRAlpQ5WMyOjKIeFq6A.jpg
9tVrH4w+Qc+mDWURhG7JSQ.jpg

Re: My cx 25

Posted: Mon Apr 06, 2020 2:14 pm
by dalnilo
gn%0+RIuQHGc4D2hjpZMRQ.jpg
YScQ47+xSCeFnm8p3JgJQg.jpg
pfFxw75NQPitpIOfddAz7w.jpg
4ZN+IhjuTWaSCZu%RvdxOw.jpg
%VeM%T9DS8K2n+Hvga49ZA.jpg
kaG9OGliQA6bCdXkeKKA0g.jpg
eJ9ZxHpSToOreqphSIW8NQ.jpg

Re: My cx 25

Posted: Mon Apr 06, 2020 2:23 pm
by dalnilo
q+S7isCdS3ix%DTR5jrS6Q.jpg

Re: My cx 25

Posted: Mon Apr 06, 2020 3:02 pm
by danieloldhouse
Hat off! You're doing a great work!

Re: My cx 25

Posted: Mon Apr 06, 2020 3:25 pm
by Fuzz
Both beautiful work and a lot of it! Very nice.

Re: My cx 25

Posted: Mon Apr 06, 2020 3:25 pm
by Jeff
Great progress!! Jeff

Re: My cx 25

Posted: Mon May 04, 2020 6:53 am
by dalnilo
hello, I have a question for you, do you think I can make these changes?
I would like the superstructure to make a sunbath for two people.
look at photos
IMG_5934.jpg

Re: My cx 25

Posted: Mon May 04, 2020 12:39 pm
by jacquesmm
Aluminum frame? Yes but its the job of your fabricator to make it sturdy enough and to recommend good anchoring points.

Stationary use will be fine but some CS25 owners have installed small towers.
The boat can take it.

Re: My cx 25

Posted: Tue May 05, 2020 4:50 am
by dalnilo
jacquesmm wrote: Mon May 04, 2020 12:39 pm Aluminum frame? Yes but its the job of your fabricator to make it sturdy enough and to recommend good anchoring points.

Stationary use will be fine but some CS25 owners have installed small towers.
The boat can take it.
the sides of the ttop I would like to make them in foam is possible.
as for the cabin cover, can it be extended as in the photo? they can use it as a sunbath

Re: My cx 25

Posted: Sun Jun 14, 2020 10:21 am
by muratugurlu
The weakest point is the welding zone when you use aluminium.

Re: My cx 25

Posted: Thu Sep 17, 2020 12:38 pm
by dalnilo
the works are continuing, I am using foam 15mm density 80 resin coated on top with 600g biaxial
underneath with 300g mat.
how does it look to you?
IMG_6660.jpg
IMG_6636.jpg

Re: My cx 25

Posted: Thu Sep 17, 2020 5:11 pm
by fallguy1000
I think your first side laminate is too stiff to torture well.

Is that the goal? 200g no mat will torture easier...otherwise you may have trouble bending..

Re: My cx 25

Posted: Thu Sep 17, 2020 5:13 pm
by fallguy1000
Also, at the intersections; you can make a 3mm relief cut with an electric planer and avoid a fairing headache on the exterior.

Re: My cx 25

Posted: Sun Sep 20, 2020 6:20 am
by dalnilo
fallguy1000 wrote: Thu Sep 17, 2020 5:13 pm Also, at the intersections; you can make a 3mm relief cut with an electric planer and avoid a fairing headache on the exterior.
thank you for the advice, fortunately I rounded and grouted everything well, then I laminated, and it came out well.

Re: My cx 25

Posted: Sun Sep 20, 2020 6:27 am
by dalnilo
IMG_6875.jpg
IMG_6876.jpg
IMG_6878.jpg
IMG_6881.jpg
IMG_6882.jpg
IMG_6885.jpg

Re: My cx 25

Posted: Sun Sep 20, 2020 1:58 pm
by Fuzz
Your foam/glass work sure looks nice. This is going to be a very nice boat :wink:

Re: My cx 25

Posted: Sun Sep 20, 2020 3:21 pm
by fallguy1000
I always struggle closing the edges of the 12mm core.

Re: My cx 25

Posted: Sun Sep 20, 2020 4:10 pm
by dalnilo
fallguy1000 wrote: Sun Sep 20, 2020 3:21 pm I always struggle closing the edges of the 12mm core.
I used the 15mm foam

Re: My cx 25

Posted: Sun Sep 20, 2020 4:11 pm
by dalnilo
Fuzz wrote: Sun Sep 20, 2020 1:58 pm Your foam/glass work sure looks nice. This is going to be a very nice boat :wink:
:D :D :D :D

Re: My cx 25

Posted: Sun Sep 20, 2020 4:24 pm
by dalnilo
you recommend the single motor to be assembled, from the project it says single 250 double 400,
can I mount a single 300 4 stroke?
what brand?
is the 300 excessive?
what maximum weight should a single motor mounted on a bracket have?

Re: My cx 25

Posted: Mon Sep 21, 2020 1:55 pm
by dalnilo
dalnilo wrote: Sun Sep 20, 2020 4:24 pm you recommend the single motor to be assembled, from the project it says single 250 double 400,
can I mount a single 300 4 stroke?
what brand?
is the 300 excessive?
what maximum weight should a single motor mounted on a bracket have?
I answer myself, I assume that I can also mount a single motor from 250 min to 400 max exactly? it does not change whether single or double.

Re: My cx 25

Posted: Wed Sep 23, 2020 12:58 pm
by dalnilo
good evening,
I officially ask the designer or whoever for him to be able to answer my question,
I have a doubt I would like to clarify it I think it is important for me and my boat.
I look forward to your answers thank you very much.

Re: My cx 25

Posted: Wed Sep 23, 2020 2:48 pm
by jacquesmm
You have a choice: single engine or twin.
I recommend a single 250 HP. Check the building thread of Curacao Peter, he was happy with a single 300 HP.
My original recommendation for twins was 280 as in two 140 or 145. Some have installed up to 400 HP (2 x 200 HP) but I find that excessive.
Those recommendations are my opinion. The structure, transom and bottom can take any of those combinations.

Re: My cx 25

Posted: Thu Sep 24, 2020 7:59 am
by dalnilo
jacquesmm wrote: Wed Sep 23, 2020 2:48 pm You have a choice: single engine or twin.
I recommend a single 250 HP. Check the building thread of Curacao Peter, he was happy with a single 300 HP.
My original recommendation for twins was 280 as in two 140 or 145. Some have installed up to 400 HP (2 x 200 HP) but I find that excessive.
Those recommendations are my opinion. The structure, transom and bottom can take any of those combinations.
ok thanks for the clarification

Re: My cx 25

Posted: Wed Nov 25, 2020 2:08 pm
by dalnilo
hello, to all friends of the forum.
I give you some updates,
I chose the engine :D :D :D
IMG_6897.jpg
I also did a lot of work, I finished all the structural construction of the project.

Re: My cx 25

Posted: Wed Nov 25, 2020 2:39 pm
by cape man
That's a bad ass motor!

Re: My cx 25

Posted: Wed Nov 25, 2020 2:43 pm
by cape man
Double post...

Re: My cx 25

Posted: Wed Nov 25, 2020 2:51 pm
by Jeff
Nice, Congrats!!! Jeff

Re: My cx 25

Posted: Wed Nov 25, 2020 4:00 pm
by TomW1
Pretty :D

Re: My cx 25

Posted: Fri Nov 27, 2020 2:38 am
by dalnilo
cape man wrote: Wed Nov 25, 2020 2:39 pm That's a bad ass motor!
why do you think so

Re: My cx 25

Posted: Fri Nov 27, 2020 2:39 am
by dalnilo
cape man wrote: Wed Nov 25, 2020 2:43 pm Double post...
single

Re: My cx 25

Posted: Fri Nov 27, 2020 2:40 am
by narfi
dalnilo wrote: Fri Nov 27, 2020 2:38 am
cape man wrote: Wed Nov 25, 2020 2:39 pm That's a bad ass motor!
why do you think so
That is slang to say it is very nice :)

Re: My cx 25

Posted: Fri Nov 27, 2020 2:42 am
by dalnilo
narfi wrote: Fri Nov 27, 2020 2:40 am
dalnilo wrote: Fri Nov 27, 2020 2:38 am
cape man wrote: Wed Nov 25, 2020 2:39 pm That's a bad ass motor!
why do you think so
That is slang to say it is very nice :)
:D :D

Re: My cx 25

Posted: Fri Nov 27, 2020 2:48 am
by dalnilo
IMG_7134.jpg
IMG_7138.jpg

Re: My cx 25

Posted: Fri Nov 27, 2020 4:29 am
by cape man
images.jpeg

Re: My cx 25

Posted: Wed Jan 06, 2021 7:35 am
by dalnilo
hello everyone I update the works of the new year with some photos,
you like it? do you have any advice for me?
IMG_7374.jpg
IMG_7390.jpg
IMG_7392.jpg
IMG_7403.jpg
IMG_7407.jpg
IMG_7408.jpg

Re: My cx 25

Posted: Wed Jan 06, 2021 9:32 am
by pee wee
Beautiful work! It looks like you spent time getting the design details worked out, nobody is going to believe you built it yourself. 8)

Re: My cx 25

Posted: Wed Jan 06, 2021 10:53 am
by Jeff
Well Done!!! Jeff

Re: My cx 25

Posted: Tue Jan 26, 2021 11:24 am
by dalnilo
IMG_7526.jpg
IMG_7521.jpg
IMG_7523.jpg
IMG_7524.jpg
IMG_7525.jpg
IMG_7527.jpg
IMG_7530.jpg

what do you think?
I accept advice, opinions.
I go ahead? do you think it will navigate well with this change to the project?

Re: My cx 25

Posted: Tue Jan 26, 2021 11:32 am
by fallguy1000
Looks really good. No glass on the foam sides or is it invisible?

Re: My cx 25

Posted: Tue Jan 26, 2021 11:38 am
by dalnilo
fallguy1000 wrote: Tue Jan 26, 2021 11:32 am Looks really good. No glass on the foam sides or is it invisible?
when I finish filling everything. I will put a 600g fiber.
you like?

Re: My cx 25

Posted: Tue Jan 26, 2021 1:31 pm
by TomW1
Looking good Danilo.

Tom

Re: My cx 25

Posted: Tue Jan 26, 2021 2:42 pm
by Jeff
Looking really well!!! Jeff

Re: My cx 25

Posted: Tue Jan 26, 2021 3:55 pm
by fallguy1000
dalnilo wrote: Tue Jan 26, 2021 11:38 am
fallguy1000 wrote: Tue Jan 26, 2021 11:32 am Looks really good. No glass on the foam sides or is it invisible?
when I finish filling everything. I will put a 600g fiber.
you like?
Oh, I like it a bunch.

Re: My cx 25

Posted: Sat May 01, 2021 4:03 pm
by dalnilo
hello everyone, I update you with some photos
3D1CA3D2-1727-46BA-91DC-983C3C1CE402.jpeg
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016A5DCA-F3BC-454F-85D0-2F9A8E2F15E8.jpeg
F9FBD8F3-6B0B-4515-82AA-59A5EF72AEE2.jpeg
C568B5BB-CD1C-406A-A210-FEBC0106F81C.jpeg
6E18A563-1D8E-4618-BBEC-F41DDDCA33DD.jpeg
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CABD35FE-E876-412F-B9EB-607D057DFA7E.jpeg
EE23AED9-4568-469B-B6FA-DE7DD2E21E04.jpeg
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9B439315-7733-4B44-935F-910A91820F57.jpeg
FE7E741A-DA8C-4BDD-8A76-90286DA2648F.jpeg

Re: My cx 25

Posted: Sat May 01, 2021 4:15 pm
by dalnilo
FFC34A9D-B1DA-44B6-9007-26338F3D5EB9.jpeg
5DEF2706-BAC5-4C44-9E3E-349424B1802F.jpeg
21BF024C-44D5-4FD5-9D51-693795561136.jpeg
1CA29DD2-A772-4374-A2D3-374EA223FEC1.jpeg

Re: My cx 25

Posted: Sat May 01, 2021 7:02 pm
by fallguy1000
Nice work. I feel like you are catching me a bit. What is the tank?

Re: My cx 25

Posted: Sun May 02, 2021 12:05 am
by TomW1
Your really coming along along. What is the Max Power for?

Tom

Re: My cx 25

Posted: Sun May 02, 2021 4:26 am
by dalnilo
fallguy1000 wrote: Sat May 01, 2021 7:02 pm Nice work. I feel like you are catching me a bit. What is the tank?
water tank 135 liter , installed where you see in the picture.

Re: My cx 25

Posted: Sun May 02, 2021 4:29 am
by dalnilo
TomW1 wrote: Sun May 02, 2021 12:05 am Your really coming along along. What is the Max Power for?

Tom
I think that the bow thruster is very useful, having only one engine, in Sicily the mooring spaces are very small

Re: My cx 25

Posted: Sun May 02, 2021 9:14 am
by fallguy1000
Your water tank...

I see a fill line and a supply line, but no vent. You could vent off the fill line I suppose, but you need a vent..

Re: My cx 25

Posted: Sun May 02, 2021 9:16 am
by fallguy1000
Oops. Maybe there is a 3rd hole there with a brass fitting for the supply. My miss.

Re: My cx 25

Posted: Sun May 02, 2021 12:56 pm
by dalnilo
fallguy1000 wrote: Sun May 02, 2021 9:16 am Oops. Maybe there is a 3rd hole there with a brass fitting for the supply. My miss.
exactly there is a 38mm load, 3/4 intake, 3/8 vent, plus level sensor

Re: My cx 25

Posted: Sun May 02, 2021 1:26 pm
by dalnilo
dalnilo wrote: Sun May 02, 2021 4:29 am
TomW1 wrote: Sun May 02, 2021 12:05 am Your really coming along along. What is the Max Power for?

Tom
I think that the bow thruster is very useful, having only one engine, in Sicily the mooring spaces are very small
4t88i8gvTYG6049d7QjZoA.jpg
fullsizeoutput_1dcd.jpeg
fullsizeoutput_1dcb.jpeg

Re: My cx 25

Posted: Sun May 02, 2021 5:40 pm
by TomW1
Beautiful! :D

Tom

Re: My cx 25

Posted: Wed Jun 02, 2021 1:28 pm
by dalnilo
Hello! to all.
work update, with some photos
IMG_8150.jpg
IMG_8152.jpg
IMG_8148.jpg
IMG_8158.jpg

technical tests
IMG_8233.jpg
hardtop painting
IMG_8257.jpg

Re: My cx 25

Posted: Wed Jun 02, 2021 1:31 pm
by cape man
Very nice, and very clean work! Love the helm layout.

Re: My cx 25

Posted: Wed Jun 02, 2021 1:36 pm
by dalnilo
cape man wrote: Wed Jun 02, 2021 1:31 pm Very nice, and very clean work! Love the helm layout.
I'm happy, the color I used for the roof I also used for the sides, I'm glad you like it

Re: My cx 25

Posted: Wed Jun 02, 2021 1:38 pm
by dalnilo
dalnilo wrote: Wed Jun 02, 2021 1:36 pm
cape man wrote: Wed Jun 02, 2021 1:31 pm Very nice, and very clean work! Love the helm layout.
I'm happy, the color I used for the roof I also used for the sides, I'm glad you like it
maybe you won't like this
IMG_8095.jpg

Re: My cx 25

Posted: Wed Jun 02, 2021 1:43 pm
by dalnilo
I would like some advice, how should I fix the furniture?

Re: My cx 25

Posted: Wed Jun 02, 2021 1:45 pm
by Jeff
Excellent work!!! Jeff

Re: My cx 25

Posted: Wed Jun 02, 2021 1:57 pm
by cape man
What material is that for the cabinets and table top? Looks like it won't withstand water?

Re: My cx 25

Posted: Wed Jun 02, 2021 4:41 pm
by dalnilo
cape man wrote: Wed Jun 02, 2021 1:57 pm What material is that for the cabinets and table top? Looks like it won't withstand water?
plywood of okumè the dark one with teak veneer, the top will not actually be the light one

Re: My cx 25

Posted: Wed Jun 02, 2021 4:46 pm
by dalnilo
dalnilo wrote: Wed Jun 02, 2021 4:41 pm
cape man wrote: Wed Jun 02, 2021 1:57 pm What material is that for the cabinets and table top? Looks like it won't withstand water?
plywood of okumè the dark one with teak veneer, the top will not actually be the light one
IMG_7800.jpg
here it shows

Re: My cx 25

Posted: Thu Jun 03, 2021 10:41 am
by cape man
That will work!

Re: My cx 25

Posted: Thu Jun 10, 2021 2:55 pm
by dalnilo
some more progress.
QcB48nQCQZisrNr8YzflMA.jpg
CAGSV+d%SLKoZ%MpLSiCAA.jpg
icgYJ8gNSkaBMdDfHq54Ig.jpg
yc8oArOJQHuSPMxSFvJEhg.jpg

Re: My cx 25

Posted: Thu Jun 10, 2021 5:07 pm
by fallguy1000
Who is that? Miss Italy?

I see some masked off. Looking good.

Re: My cx 25

Posted: Thu Jun 10, 2021 5:36 pm
by dalnilo
fallguy1000 wrote: Thu Jun 10, 2021 5:07 pm Who is that? Miss Italy?

I see some masked off. Looking good.
good look at the beautiful details

Re: My cx 25

Posted: Fri Jun 18, 2021 3:32 pm
by dalnilo
updates
IMG_8351.jpg
IMG_8345.jpg
IMG_8327.jpg
IMG_8359.jpg

Re: My cx 25

Posted: Fri Jun 18, 2021 8:44 pm
by TomW1
danilo she is really looking nice. Tom

Re: My cx 25

Posted: Sat Jun 19, 2021 4:17 pm
by dalnilo
:D :D :D :D :D thanks tom
TomW1 wrote: Fri Jun 18, 2021 8:44 pm danilo she is really looking nice. Tom

Re: My cx 25

Posted: Sun Jun 20, 2021 1:31 am
by Fuzz
That thing is really looking good. You should be proud!

Re: My cx 25

Posted: Sat Sep 18, 2021 10:19 am
by dalnilo
015A7914-F9BA-474D-82A8-665D08FAA80F.jpeg
CBC30B5F-7FA8-47F3-91EF-94600EBD0A25.jpeg
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E0665E7C-ED56-40B3-9369-E847E8B5BF0A.jpeg
705F3318-583E-45E2-AB0B-228A321A3FE0.jpeg
how does it look to you?

Re: My cx 25

Posted: Sat Sep 18, 2021 1:37 pm
by Fuzz
It looks like something one of the very best yacht builders would do if the client told them to spare no expense!

Re: My cx 25

Posted: Sat Sep 18, 2021 2:20 pm
by TomW1
Dang Fuzz if you are not correct. That boat is going to be a beautiful one. Do you have a launch date yet, Danilo? Can't wait to see her on the water.

Tom

Re: My cx 25

Posted: Sat Sep 18, 2021 2:57 pm
by dalnilo
Fuzz wrote: Sat Sep 18, 2021 1:37 pm It looks like something one of the very best yacht builders would do if the client told them to spare no expense!
Thank you

Re: My cx 25

Posted: Sat Sep 18, 2021 2:59 pm
by dalnilo
TomW1 wrote: Sat Sep 18, 2021 2:20 pm Dang Fuzz if you are not correct. That boat is going to be a beautiful one. Do you have a launch date yet, Danilo? Can't wait to see her on the water.

Tom
thank you, I sincerely hope to be able to launch it by spring 2022

Re: My cx 25

Posted: Sat Sep 18, 2021 3:46 pm
by APLJaK
Wow bellissima barca

That is a beautiful boat you are building! I can't wait to see it in the water.

Re: My cx 25

Posted: Sat Sep 18, 2021 6:17 pm
by fallguy1000
dalnilo wrote: Sat Sep 18, 2021 10:19 am 015A7914-F9BA-474D-82A8-665D08FAA80F.jpegCBC30B5F-7FA8-47F3-91EF-94600EBD0A25.jpegDBC8B35C-E8BF-446A-93BD-F6A4CD0E74BF.jpeg629972CA-6CAE-41FE-A6E4-8952E32D316C.jpegE0665E7C-ED56-40B3-9369-E847E8B5BF0A.jpeg705F3318-583E-45E2-AB0B-228A321A3FE0.jpeg

how does it look to you?
Can you tell me what is behind the cleats? I am worried they can pull off. I like the wood base, but they still need backers I'd say.

sure is pretty

Re: My cx 25

Posted: Sun Sep 19, 2021 12:27 am
by dalnilo
fallguy1000 wrote: Sat Sep 18, 2021 6:17 pm
dalnilo wrote: Sat Sep 18, 2021 10:19 am 015A7914-F9BA-474D-82A8-665D08FAA80F.jpegCBC30B5F-7FA8-47F3-91EF-94600EBD0A25.jpegDBC8B35C-E8BF-446A-93BD-F6A4CD0E74BF.jpeg629972CA-6CAE-41FE-A6E4-8952E32D316C.jpegE0665E7C-ED56-40B3-9369-E847E8B5BF0A.jpeg705F3318-583E-45E2-AB0B-228A321A3FE0.jpeg

how does it look to you?


Can you tell me what is behind the cleats? I am worried they can pull off. I like the wood base, but they still need backers I'd say.

sure is pretty
I would like to put a stainless steel plate mm5 with a wooden support, above as you can see in the picture, do you think that is enough. Do you have any advice?

Re: My cx 25

Posted: Sun Sep 19, 2021 12:28 am
by dalnilo
APLJaK wrote: Sat Sep 18, 2021 3:46 pm Wow bellissima barca

That is a beautiful boat you are building! I can't wait to see it in the water.
thanks a lot

Re: My cx 25

Posted: Sun Sep 19, 2021 1:29 pm
by fallguy1000
My main concern is how did you apply the wooden base and cleat and what would the psi rating and thus the rating of the cleat be.

For example, let's say you painted the boat and then glued on wood bases and then screwed the cleats down. The bond strength can be no greater than the weakest bond and so the adhesion of the paint and any screw penetration is all you have. Get a bad storm or boat wake and find out the cleats have a rating of say 500 pounds only.

Or, let's say you bolted through a 6mm ply skin. Now, the shear rating of the ply and the backer adhesion is all you have plus the two screws.

What I would want is for there to be a backer on the reverse. It can be aluminum or fiberglass made into say 3/8" thick so it doesn't flex much or even say 1:2-3:4" wood. That backer or the skin then determines the rating for the cleat. You want the cleats here rated to say 2000 pounds. I don't know shear ratings of the ply skin, but if you make 4" x 4" backer, then the load is applied to 16 square inches. And a 2000#/16si is 125psi...pretty high... if you make the backer 10x5", you push the loading to only 40 psi. I don't know the shear rating of the plywood gunwhale skin, but you want the cleat loading to be say 50% of the skin shear or some such.

For my boat, ideally, one cleat would take 50% of the hulls weight rounded up to nearest thousand which is 5000#. A backer for the cleat of say 50 square inches is 100psi. Not sure my skins can survive 100 psi, but that is what I am designing. If you had a much thicker gunwhale of say 3/4"; you'd need no backer I'd say because the shear rating of the thing is sufficient.

Clear as mud?

Try to put as big a backer as practical under the gunwhale is all. No backer and they will probably fail someday. If you bonded the top board with epoxy or 5200, totally different, although 5200 needs a good month to achieve high strength.

I don't know how to calculate the shear rating of the thing you built, but guessing it is equal to the shear rating of the plywood gunwhale and not much more.

Re: My cx 25

Posted: Sun Sep 19, 2021 3:16 pm
by TomW1
Fallguy I get your drift. Yes cleats should be through bolted to a backer under the gunwales and glued with a 5200 or similar to them . The backer should be as large as possible to spread the stress that may occur on the cleat in inclement weather or they may pull free from the boat. Here is where I like the 4 hole Herreshoff's cleats, https://shop.hamiltonmarine.com/product ... 29385.html
These also have there own SS backing plate for extra.

Lee also be prepared to spend an amazing on dock lines. Nylon has gone through the roof.

Tom

Re: My cx 25

Posted: Sun Sep 19, 2021 3:42 pm
by dalnilo
fallguy1000 wrote: Sun Sep 19, 2021 1:29 pm My main concern is how did you apply the wooden base and cleat and what would the psi rating and thus the rating of the cleat be.

For example, let's say you painted the boat and then glued on wood bases and then screwed the cleats down. The bond strength can be no greater than the weakest bond and so the adhesion of the paint and any screw penetration is all you have. Get a bad storm or boat wake and find out the cleats have a rating of say 500 pounds only.

Or, let's say you bolted through a 6mm ply skin. Now, the shear rating of the ply and the backer adhesion is all you have plus the two screws.

What I would want is for there to be a backer on the reverse. It can be aluminum or fiberglass made into say 3/8" thick so it doesn't flex much or even say 1:2-3:4" wood. That backer or the skin then determines the rating for the cleat. You want the cleats here rated to say 2000 pounds. I don't know shear ratings of the ply skin, but if you make 4" x 4" backer, then the load is applied to 16 square inches. And a 2000#/16si is 125psi...pretty high... if you make the backer 10x5", you push the loading to only 40 psi. I don't know the shear rating of the plywood gunwhale skin, but you want the cleat loading to be say 50% of the skin shear or some such.

For my boat, ideally, one cleat would take 50% of the hulls weight rounded up to nearest thousand which is 5000#. A backer for the cleat of say 50 square inches is 100psi. Not sure my skins can survive 100 psi, but that is what I am designing. If you had a much thicker gunwhale of say 3/4"; you'd need no backer I'd say because the shear rating of the thing is sufficient.

Clear as mud?

Try to put as big a backer as practical under the gunwhale is all. No backer and they will probably fail someday. If you bonded the top board with epoxy or 5200, totally different, although 5200 needs a good month to achieve high strength.

I don't know how to calculate the shear rating of the thing you built, but guessing it is equal to the shear rating of the plywood gunwhale and not much more.
I thank you for all the info, in reality I still have not pasted anything, I want to do it in the best way,
the wood that goes above will actually be almost exclusively aesthetic, for the teneta I will see you follow your advice with wood underneath with aluminum or stainless steel.
before fixing I will send the photos to make sure I do a good job

Re: My cx 25

Posted: Sun Sep 19, 2021 4:36 pm
by fallguy1000
TomW1 wrote: Sun Sep 19, 2021 3:16 pm Fallguy I get your drift. Yes cleats should be through bolted to a backer under the gunwales and glued with a 5200 or similar to them . The backer should be as large as possible to spread the stress that may occur on the cleat in inclement weather or they may pull free from the boat. Here is where I like the 4 hole Herreshoff's cleats, https://shop.hamiltonmarine.com/product ... 29385.html
These also have there own SS backing plate for extra.

Lee also be prepared to spend an amazing on dock lines. Nylon has gone through the roof.

Tom
Hmmm. I don't have lines purchased. Maybe I wil wait then.

Re: My cx 25

Posted: Sun Sep 19, 2021 5:45 pm
by Jaysen
Quick word on dock lines… get the cheaper 3 strand twist and make your own. Braiding a loop is easy and you will need to replace lines frequently no matter how careful you are. Keep a 300’ spool and made the exactly lines you need. Especially if you have a fixed dock site.

A set of exact length, double ended (loops each end) lines takes all the guess work out of final tie off. Also makes hurricane prep forken simple.

Re: My cx 25

Posted: Sun Sep 19, 2021 9:28 pm
by TomW1
Jaysen have to disagree with you 3 strand twist is to weak for his 6000lb boat in a major storm he needs at least 8 strand braid nylon 1' rated at 23000lbs breaking strength. That is triple the weight of his boat and will not stretch enough with doubled lines to put it on the dock if he has it tied down from both sides.

I also disagree on the loops, they do not let you adjust the lines length for tides or other expected conditions. No need for them on them on both ends, just one. It depends on the tide fluctuation sometimes they never have to be moved sometimes they need to be adjusted hourly. Looks like CC only has one tide cycle that varies from .5 - 1.75 feet a day in the cycle I could check.

Tom

Re: My cx 25

Posted: Sun Sep 19, 2021 9:51 pm
by Jaysen
Respectfully, you are incorrect. Please reread what I suggested then double check the facts you cite.

Re: My cx 25

Posted: Sun Sep 19, 2021 11:10 pm
by fallguy1000
This boat is in Italy I think.

Re: My cx 25

Posted: Tue Jan 18, 2022 1:30 pm
by dalnilo
hello, all friends of the forum, this my progress.
IMG_1578.jpg
IMG_1567.jpg
IMG_1562.jpg
IMG_1516.jpg
IMG_1515.jpg

Re: My cx 25

Posted: Tue Jan 18, 2022 1:35 pm
by Jeff
Beautiful work!!! Jeff

Re: My cx 25

Posted: Tue Jan 18, 2022 1:38 pm
by dalnilo
:oops:
Jeff wrote: Tue Jan 18, 2022 1:35 pm Beautiful work!!! Jeff

Re: My cx 25

Posted: Tue Jan 18, 2022 1:41 pm
by dalnilo
IMG_1586.jpg
IMG_1587.jpg
IMG_1588.jpg
IMG_1589.jpg
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Re: My cx 25

Posted: Tue Jan 18, 2022 1:55 pm
by fallguy1000
Can you share the wood thickness for the bow pulpit/anchor roller support?

Re: My cx 25

Posted: Tue Jan 18, 2022 2:07 pm
by dalnilo
the thickness of the wood is 45mm in the bow, the deck part is 15mm, the steel plate is 5mmz7mm
IMG_1597.jpg
IMG_1596.jpg
IMG_1595.jpg

Re: My cx 25

Posted: Tue Jan 18, 2022 3:52 pm
by Fuzz
Not sure where to start, all of your work looks so good. This is going to be one nice boat!

Re: My cx 25

Posted: Tue Jan 18, 2022 6:18 pm
by TomW1
Beautiful work Danilo, you will have a boat to be proud of. Tom

Re: My cx 25

Posted: Wed Aug 10, 2022 12:22 pm
by dalnilo
guys here we are
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Re: My cx 25

Posted: Wed Aug 10, 2022 12:23 pm
by Jeff
Very nice!!! Jeff

Re: My cx 25

Posted: Wed Aug 10, 2022 12:26 pm
by dalnilo
I would like to know from the designer what capacity the boat has at full load?

Re: My cx 25

Posted: Wed Aug 10, 2022 1:02 pm
by jacquesmm
Capacity can be calculated according through a formula like the ABYC, US Coast Guard or EEC certification or using displacement figures, common sense and reports from builders. The DWL (Designed Water Line) is at 5000 lbs (2,200 liters). That puts the cockpit sole about 3" above the DWL. That weight includes the engine, tanks with fuel, gear, crew, everything. Look at the pictures of the CS25 (same hull but no cabin), she is built as designed and floats high. If I had to calculate a USCG capacity plate, depending on the builder, we would get more than 6,000 lbs (2,700 liters) and 6 persons.

It would take a lot to bring her down to water entering the cockpit scuppers but I find it unsafe to have more than 6 persons or a heavier weight on that boat.

Re: My cx 25

Posted: Wed Aug 10, 2022 1:16 pm
by piperdown
Absolutely gorgeous!

Re: My cx 25

Posted: Wed Aug 10, 2022 1:39 pm
by dalnilo
jacquesmm wrote: Wed Aug 10, 2022 1:02 pm Capacity can be calculated according through a formula like the ABYC, US Coast Guard or EEC certification or using displacement figures, common sense and reports from builders. The DWL (Designed Water Line) is at 5000 lbs (2,200 liters). That puts the cockpit sole about 3" above the DWL. That weight includes the engine, tanks with fuel, gear, crew, everything. Look at the pictures of the CS25 (same hull but no cabin), she is built as designed and floats high. If I had to calculate a USCG capacity plate, depending on the builder, we would get more than 6,000 lbs (2,700 liters) and 6 persons.

It would take a lot to bring her down to water entering the cockpit scuppers but I find it unsafe to have more than 6 persons or a heavier weight on that boat.
do you think my boat is too heavy?
I have to do the certification for floating and heel for 8 people and too much

Re: My cx 25

Posted: Wed Aug 10, 2022 2:42 pm
by jacquesmm
dalnilo wrote: Wed Aug 10, 2022 1:39 pm do you think my boat is too heavy?
I have to do the certification for floating and heel for 8 people and too much
8 persons is a lot on a 25' boat. There is barely enough room to stand in the cockpit for 8. Is that 8 a figure you choose or some rule?

The CX25 is not different from most production boats and should satisfy all rules the same way than similar boats. There may be new rules that I don't know.

Re: My cx 25

Posted: Thu Sep 22, 2022 5:10 am
by dalnilo
finally put in the water
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Re: My cx 25

Posted: Thu Sep 22, 2022 5:13 am
by dalnilo
there are some problems, I should be able to solve them.
with your help

Re: My cx 25

Posted: Thu Sep 22, 2022 7:54 am
by fallguy1000
Looks nice in the photo.

Re: My cx 25

Posted: Thu Sep 22, 2022 1:37 pm
by TomW1
Danilo, she looks nice and sitting on her lines in that photo. Tom

Re: My cx 25

Posted: Fri Sep 23, 2022 2:47 am
by dalnilo
in reality the bow sinks about 8/10 cm with respect to the waterline.
this means that in the aft cockpit the water goes to the bow.
another problem, water enters the scuppers and being inclined towards the bow with the boat stationary it does not empty.

Re: My cx 25

Posted: Fri Sep 23, 2022 3:00 am
by dalnilo
At the bow I have 140 liters of water plus 100 kg between chain, anchor, windlass, 20 kg bow thruster.
if I reduce these weights do you think it can solve the problem?
could the ttop weight towards the bow?
what kind of scupper should i use? I used the same ones as peter's boat.

Re: My cx 25

Posted: Fri Sep 23, 2022 3:16 pm
by TomW1
Danilo, get rid of the water in the bow that is nearly 400lbs/176KG and is causing your drainage problems. With the CX you already have more weight forward than the C25 so by adding the extra water ballast you have made her bow heavy. Where did you get the idea to add the water ballast and so much of it? Peter's scuppers worked fine for him. Do you have trim tabs you might seriously consider them after removing the water. Most larger boats benefit from them.

Tom

Re: My cx 25

Posted: Fri Sep 23, 2022 8:02 pm
by fallguy1000
Yeah. Tom is correct. You cannot keep 36 gallons of freshwater onboard a 25' boat. 36*8=288 pounds; that boat is probably only suited for a 10-12 gallon fw tank.

220 pounds of chain, anchor and windlass is an awful lot as well...sorry to tell you, but you really would have been good with 25' of relatively light chain and 150' of rope. Even a 35 pound anchor would be big. So your anchorinf system is 120 pounds overweight by my estimates.

You really need to lose some major weight in the bow. I understand the wish for all chain rode, but it is not practical in a boat this size and you will pay for it in fuel. Can you size down things?

I am facing my own weight concerns with my boat.

Re: My cx 25

Posted: Sat Sep 24, 2022 12:45 am
by TomW1
fallguy I missed typed actual water weight is 300lbs not 400lbs. You left off a couple of decimals to get your 288lbs.

Also, I totally missed the all chain rode. On most boats the size of Danilo's CX25 the rode is made up of 25-35-50 feet of chain and then the rest of nylon rope. From what I can remember of my days in the Med. most anchorages are sand. This would help him also. You take care.

Tom

Re: My cx 25

Posted: Sat Sep 24, 2022 3:03 am
by dalnilo
I exaggerated!!!! now I try to empty the water and leave only 10 meters of chain then all rope.
I will let you know if I can reduce the problem.
as far as scuppers are concerned, I hope to resolve having the slope towards the stern, if I can't I will try with ball scuppers.

Re: My cx 25

Posted: Sat Sep 24, 2022 3:06 am
by dalnilo
TomW1 wrote: Fri Sep 23, 2022 3:16 pm Danilo, get rid of the water in the bow that is nearly 400lbs/176KG and is causing your drainage problems. With the CX you already have more weight forward than the C25 so by adding the extra water ballast you have made her bow heavy. Where did you get the idea to add the water ballast and so much of it? Peter's scuppers worked fine for him. Do you have trim tabs you might seriously consider them after removing the water. Most larger boats benefit from them.

Tom
I have already mounted the zipwake, at the moment I do not use them because I have noticed that they make me lower the bow

Re: My cx 25

Posted: Sat Sep 24, 2022 3:45 am
by BarraMan
Zipwake trim tabs wont help with a bow down boat. The only way you can get the bow up is do 1) reduce weight up front and 2) trim the OB out. Even if you use the Zipwakes to trim the boat in the transverse plane, they will tend to bring the bow down!

Can the anchor windlass handle rope? I have an anchor winch on my boat which doesnt care if its winding up chain or rope!

Re: My cx 25

Posted: Sat Sep 24, 2022 4:51 am
by fallguy1000
Another thing you can do is to lower the engine and trim up the motor. But hopefully your water and rode adjustments are enough 420 pounds extra on the bow is lots.

Re: My cx 25

Posted: Sat Sep 24, 2022 12:28 pm
by dalnilo
BarraMan wrote: Sat Sep 24, 2022 3:45 am Zipwake trim tabs wont help with a bow down boat. The only way you can get the bow up is do 1) reduce weight up front and 2) trim the OB out. Even if you use the Zipwakes to trim the boat in the transverse plane, they will tend to bring the bow down!

Can the anchor windlass handle rope? I have an anchor winch on my boat which doesnt care if its winding up chain or rope!
without zipwake it navigates better

Re: My cx 25

Posted: Sat Sep 24, 2022 3:05 pm
by TomW1
Danilo of course the Zipwake is not helping now with all that weight on the bow. Once you get her trimmed out properly then you can use the Zipwake, looks like a nice system. I would not mess with the motor placement, unless you do not have the ventilation plate even with the keel. The bow should come up on plane and the Zipwake's will be needed.

Tom