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Dave's OP21 Project

Posted: Thu Jun 28, 2007 10:25 pm
by dewers
After reading the plans every night for the last two weeks, I am ready to start. I went and bought a load of the Meranti 6566 today. Tomorrow afternoon I will start laying the parts and maybe Saturday actually do some cutting.

When I get to the actual build process I will start posting some pictures.

Now for the first question of millions to come.

When I am gluing up the transom along with the clamping board, can I use a series of bolts put through all of the pieces to help keep them aligned?

Thanks

Dave

Posted: Fri Jun 29, 2007 10:19 am
by Cracker Larry
Much better is to use wooden dowels 8)

Posted: Fri Jun 29, 2007 1:45 pm
by dewers
Thanks for the idea. That will make much easier after its all cured up

Dave

Posted: Fri Jun 29, 2007 10:30 pm
by Dougster
That sounds pretty elegant. I just gooped some butter on both sides, set one on top of the other, and used the SHS clamp (some heavy stuff). But there are many paths. BTW, I'll be in Santa Fe this summer for a few days, where you be? The OP 21 is a fine looking thing. . . does your wife know how good looking she is?

Don't do like old Dougster

Posted: Fri Jun 29, 2007 11:43 pm
by dewers
I will be most likely at the shop (computer store) or at home, but I can make myself available for a fellow boater.

What days are you going to be there and where in Texas are you coming from? There is a reason why I ask.

The wife is a thing of the past I hate to say. Now I am a single guy again.

Posted: Sat Jun 30, 2007 9:40 am
by Dougster
Don't like posting travel plans on the net. Hit me with an email and I'll respond (can't see one on your profile and PM doesn't work). BTW, where you gonna float that big old boat up there?

I'll be staying with old friends Dougster

Posted: Sat Jun 30, 2007 2:21 pm
by dewers
Sent you an email with my info, hopefully it went through.

I plan on floating this bad boy in The Redondo Beach area of California and in Port O'Connor area of Texas.

Posted: Sat Jun 30, 2007 6:32 pm
by robbiro
Dave,
She is really taking shape. Keep up the good work. I have enjoyed the photos on the blog that you are keeping.

Keep on Buildin'

Robbie

Posted: Sat Jun 30, 2007 9:19 pm
by dewers
:help:

Layed out the transom today that went real well without any problems. I started to lay out station F and I ran into a real big problem. When I was reading the palns from sheet D250/4 I realized there was something I could not figure out.

The length of my plywood 2442 mm and the plans call for the outside of station F to be at 1233 from the centerline . On the nesting plans it does show staion F to be larger than the sheet of plywood. Is there an error on the plans or I am missing something simple? :help: :help:

Thanks

Dave

About the FL12. I am trying to my FL12 back from my ex. It is still unfinished and just sitting there

Posted: Sun Jul 01, 2007 12:33 am
by ks8
Shaping up...

Hardwood Dowels are very handy. You don't need many at all. Just use them in key positions. Three in the transom (two at the upper ends, one at the bottom where you will drill out the drain plug). The same two at the top can also hold the clamping board if it is full length, else maybe two more to hold that. Completely stops the sliding around, and you don't need to go back and fill screw holes later. 1/4 inch dowels do the job, as they don't really hold anything together, but only keep it aligned while curing. Keeping things aligned is a good thing. 8)

Dowels make multiple layer laminates easy in one bonding session... after lots of crazed mixing...

Image

Build well!

:)

Posted: Wed Jul 04, 2007 2:36 am
by dewers
Got the transom and the clamping boards cut. I cut the clamping boards slightly larger and I am going to use a rounter with a trim bit to make them all the same size. Will post a pic when that is done. When would be the best time to stat preparing the transom tthe the drain plug, after I get it glassed or before?

Posted: Wed Jul 04, 2007 3:09 am
by ks8
I'd get it bonded on the boat first and build up your fillet tape laminates. Cut the hole just before some construction is going to make it no longer possible to drill it from the inside. If you oversize drill, then fill then redrill to size to get a glass fiber/epoxy seal ring between the wood core and the drain barrel, like this...

Image

... then, if you still wanted the assurance of a piece of glass on the forward and aft faces of that filler *tube*, you could always cut a piece of circular 6 oz glass cloth and laminate it over the hole at this point, dremel out the *hole* when cured, and fair that 6 oz cloth into the rest of the transom. That would be one solid hole waiting for the brass tube or plug *assembly*.

By waiting until the transom is bonded on the boat with the taping complete, you have a better idea exactly where you can drill so that it doesn't undo the strength of the tape laminations at the bottom, by drilling from the inside, above the curve of the taping over the fillet. If the hole is above 3/4 inch above the very bottom of the compartment, well, I guess you'll have a bilge pump in there anyway, and an access hatch to wipe out any remaining little puddle with a sponge, if you even get any water in there at all!

There are other approaches, but that's all I've got to say about that.. :)

Posted: Wed Jul 04, 2007 3:13 am
by dewers
thank KS8, I will go that way. There will be more question later about this very subject.

Dave

Posted: Wed Jul 04, 2007 3:31 am
by ks8
There are several types of plugs and ways to install them. Let's see if others will post pictures of theirs and how they installed them. :)