Narfi's HC14 build thread - LAUNCHED

Boats up to 15' for oars, power or sail. Please include the boat type in your question.
narfi
* Bateau Builder *
* Bateau Builder *
Posts: 2196
Joined: Tue Jun 07, 2016 6:55 pm
Location: Bush Alaska
Location: Bush Alaska

Re: Narfi's HC14

Post by narfi »

@BB Sig what do you mean by baseline? The fs17 and 19 plans I have show a baseline but the canoe doesn't.

I think I should be safe starting 3 inches each side of the seams and working out from there in 6 inch increments. Then adding holes if I need at 3 on the ends.



Honey doos kept me busy till 11 so not much progress to report :/

I put some 40grit on my little palm sander and attacked the paper I bonded to the seam.

Before: you can see there is paper embedded in the entire width of the resin......
20170709_130650.jpg


Mostly sanded off: you can see the paper areas look like voids in the resin but its really just the white of the paper.
20170710_232342.jpg

Done: ??? Good enough?
20170710_232714.jpg

Weather Report: 11:30pm 56f was warmer during the day.
Still light enough in the tent to do rough work but not detailed. Lights ordered from Amazon for when it starts getting dark sooner in the evening.
Picture taken at 11.30 without a flash.
20170710_233052.jpg



User avatar
BB Sig
Very Active Poster
Very Active Poster
Posts: 1710
Joined: Thu Sep 29, 2011 9:20 am
Location: Tallahassee, FL
Contact:

Re: Narfi's HC14

Post by BB Sig »

I haven't seen these plans. I ASSumed there was a baseline. :oops: All four of the plans I have seen had a baseline. You have to have something to align the jigs. I know you've read the plans multiple times but I always find something that I missed previously (or forgot). Without a baseline, I can't imagine Jacques would design a jig. :?:

Maybe Jacques will comment...

User avatar
BB Sig
Very Active Poster
Very Active Poster
Posts: 1710
Joined: Thu Sep 29, 2011 9:20 am
Location: Tallahassee, FL
Contact:

Re: Narfi's HC14

Post by BB Sig »

After looking at the study plans, I don't think it was ever meant to be built with a jig. This is a true stitch and glue build. The molds are throw a ways made for getting the shape right. I would bet that the plans say to build right side up and to support the ends as necessary. That's how the FS13 is designed to be built. :wink:

Let us know how Jacques meant it to be built...

pee wee
Very Active Poster
Very Active Poster
Posts: 1930
Joined: Sun May 01, 2011 8:29 am
Location: Georgia

Re: Narfi's HC14

Post by pee wee »

In the photo of the sanded seam (that won't display when I try to quote) I see the binder threads are not all sanded away yet. It's not a requirement, but to cut down on fairing you can sand until they are gone. You used biaxial tape on the seam, so the glass fibers are running 45 degrees to the seam, the binder threads are the white pieces running parallel to the seam and don't contribute strength. Since this is your practice boat you may want some practice sanding! :lol:
Hank

narfi
* Bateau Builder *
* Bateau Builder *
Posts: 2196
Joined: Tue Jun 07, 2016 6:55 pm
Location: Bush Alaska
Location: Bush Alaska

Re: Narfi's HC14

Post by narfi »

narfi wrote: Mon Jul 10, 2017 3:28 am

Added 4 inches to the top of each mold so it will sit up a little when upside down.
...... just realized I need to read the plans more.... I'm not sure if those are all level or not.... I may have screwed up on that not sure yet.........


BB Sig wrote: Tue Jul 11, 2017 5:54 am After looking at the study plans, I don't think it was ever meant to be built with a jig. This is a true stitch and glue build. The molds are throw a ways made for getting the shape right. I would bet that the plans say to build right side up and to support the ends as necessary. That's how the FS13 is designed to be built. :wink:

Let us know how Jacques meant it to be built...
I think you are right. It's a bit confusing though. Perhaps because I've read through the fa17/19 plans so much I read more into these than was there. I had planned to build this upside down like they are glassing the bottom first. But it seems like it's to be done inside first right side up.
It's confusing because the plans say order doesn't matter.

Guess I will do some more sanding in the evenings and think about it.
You say the binder string is supposed to be completely sanded off? I wondered about that..... the little fiberglass I have used before was woven tighter than that and didn't have a binder string. What are the differences and pros and cons?
I assume this is the right tape as it's what BBC sent me.

jacquesmm
Site Admin
Site Admin
Posts: 28005
Joined: Wed Aug 14, 2002 1:00 am
Location: Florida USA
Contact:

Re: Narfi's HC14

Post by jacquesmm »

The boat is designed to be built without a jig but like mots of our boats, you can also build her on a jig if you prefer: all the dimensions are there.
I built a HC16 prototype without a jig and it came together fast and square.
Jacques Mertens - Designer
http://boatbuildercentral.com

pee wee
Very Active Poster
Very Active Poster
Posts: 1930
Joined: Sun May 01, 2011 8:29 am
Location: Georgia

Re: Narfi's HC14

Post by pee wee »

The structural fiberglass we use on these boats is a biaxial weave, and they sew it together with plain thread so it is easier to handle and doesn't come unravelled. Once the epoxy is set there is no longer a function for those threads and since they sit proud of the surface the consensus is to sand them down, but stop short of sanding into the glass. Look for that cross-hatch pattern to emerge on the sanded surface. The woven fiberglass typically doesn't use those threads.
Hank

narfi
* Bateau Builder *
* Bateau Builder *
Posts: 2196
Joined: Tue Jun 07, 2016 6:55 pm
Location: Bush Alaska
Location: Bush Alaska

Re: Narfi's HC14

Post by narfi »

Thanks Jacques....
There are no measurements in the plans for doing it on a jig.
I cut the molds out but if I hard mounted them to my table I don't think heights would be right since there is no base measurement. Or is the bottom perfectly flat and I can measure from there?

narfi
* Bateau Builder *
* Bateau Builder *
Posts: 2196
Joined: Tue Jun 07, 2016 6:55 pm
Location: Bush Alaska
Location: Bush Alaska

Re: Narfi's HC14

Post by narfi »

No physical work on the canoe yesterday :/
It was Prime day on amazon though, so got a 6" electric sander, a small router, and a thermometer which gives inside/outside readings for the tent.

Read this in another thread and Sounds like it might be a good idea for me as well.
terrulian wrote: Wed Jul 12, 2017 8:06 am Welcome, Stuart.
This is a good time to use your side panels as a pattern to cut your rub rails.

User avatar
BB Sig
Very Active Poster
Very Active Poster
Posts: 1710
Joined: Thu Sep 29, 2011 9:20 am
Location: Tallahassee, FL
Contact:

Re: Narfi's HC14

Post by BB Sig »

I missed out on that. I am wondering if it matters since my curve was on the bottom of that panel...

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest