C19 Newbie Questions

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Pcbuss
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C19 Newbie Questions

Post by Pcbuss » Tue Aug 13, 2019 2:55 pm

So my son and I are about to begin our C19 build. Question on building the jig.

Does everyone just use the 9mm marine ply for the bulkheads on the jig or do you use regular plywood and then just discard it after the flip?

Thanks,
Peter



Reid
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Re: C19 Newbie Questions

Post by Reid » Tue Aug 13, 2019 3:03 pm

Peter,

Welcome and good luck on your build! Always nice to see father/son builds!

On a boat this big, I would cut temporary frames made from scrap plywood.

-Reid
Someone asked me, if I were stranded on a desert island what book would I bring... "How to Build a Boat."
- Steven Wright

narfi
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Re: C19 Newbie Questions

Post by narfi » Tue Aug 13, 2019 3:27 pm

I am building a different boat, but I think the process is the same.
I used cheap wood for the formers, because in the jig they need to be full size, but once built into the boat the bulkheads are much smaller.
It would take a lot of expensive plywood to cut full size formers, just to cut out most of them later once you are flipped and building the internal structure.

Hopefully that makes sense.

Here is an ugly mspaint image showing what I mean, the full size former and the 3 small pieces that make up the actual bulkhead.
former.png
(8.55 KiB) Not downloaded yet
There are a couple of full size bulkheads, such as the motorwell bulkhead and often the farthest forward one, so you can make them out of expensive plywood to start with, but I didnt just because I was scared of waste and being my first big build didn't want to make any expensive mistakes.

Then once you are done with the outside of the hull, you can cutup your formers to make templates for the separate bulkhead pieces.

GuyP
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Re: C19 Newbie Questions

Post by GuyP » Tue Aug 13, 2019 4:06 pm

Great diagram explanation Barfield.

GuyP
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Re: C19 Newbie Questions

Post by GuyP » Tue Aug 13, 2019 4:10 pm

Don’t know how Barfield got there. I meant narfi. Oh spellcheck. What woyld I du witout it.

narfi
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Re: C19 Newbie Questions

Post by narfi » Tue Aug 13, 2019 4:13 pm

hehe, I was trying to google it to understand a new term for me, but was coming up empty :P

Browndog
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Re: C19 Newbie Questions

Post by Browndog » Tue Aug 13, 2019 6:41 pm

Many people use MDF for the temporary frames instead of plywood due to its stability, ease of cutting and economy.

fallguy1000
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Re: C19 Newbie Questions

Post by fallguy1000 » Thu Aug 15, 2019 9:04 am

I used pressboard - and prefer it. MDF likes to break out if not predrilled.
My boat build is here -------->

viewtopic.php?f=12&t=62495

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