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First foilboard

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TomW
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Re: First foilboard

Postby TomW » Sat Sep 09, 2017 1:38 pm

Cores have a big impact on structure for sure. This board has surfboard blank PU foam.
I've fit 2 layers of 1,2 mm veneer for the deck. My plan is to put one layer of plain weave CF 200g under the wood, while epoxy gluing down the wood with vacuum bag. Then I'll clean it up and put 2 more 7oz glass over the wood wrapping the rails.

My thinking is to not touch the bottom because it's not damaged and it's nicely sanded. Or do you think I should put down a layer of carbon plain weave and glass? Much more work to re finish it...
DSC_0344.JPG
DSC_0345.JPG

TomW
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Re: First foilboard

Postby TomW » Sat Sep 09, 2017 3:50 pm

In the bag. CF 200g plain weave, + 4oz glass under 2 layers 1,2 mm abachi veneer. Just veneers weigh 500g :cry:
Whole thing will be 3,5 kg when I'm done I bet.
DSC_0347.JPG

TomW
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Re: First foilboard

Postby TomW » Sat Sep 09, 2017 3:51 pm

Any ideas on load testing?

TomW
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Re: First foilboard

Postby TomW » Mon Sep 11, 2017 7:03 pm

The board is nearly 4 kgs now,...

Blackrat
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Re: First foilboard

Postby Blackrat » Tue Sep 12, 2017 4:11 pm

Love your builds man !

Why two layers veneer ? And 4oz fabric glass is just adding weight , it won't get to be loaded as the carbon will load up before the glass

Surely 1 layer 200g on the bias is enough ? That's what I do with a 100mm wide 300gsm carbon uni running down the length

Never had a board fail yet

It looks like the veneers are wrapping the rails ?

TomW
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Re: First foilboard

Postby TomW » Tue Sep 12, 2017 5:16 pm

I put the 4oz glass on as the carbon was only partially coverage of deck. Might be overkill.
I was worried only 1 layer of veneer would fail as the deck had already failed and I needed a lamination there.
Actually I'm wondering if carbon does any good at all on the deck, perhaps it should all be on the bottom in tension when board is crashing to water.
Load on board from top while riding must be much less.

Veneer is not on rails, that's masking tape protection on rail.

I'm going to clean up the veneer edge at rail, and put only a 7 oz over the wood. And do the finish work.
Then I'm going to put the board on blocks. One block at the middle of the mast plate mount and one block about 30cm back from nose. Put the laser on it, Then load it up.
I think it needs to take my 80 kg at least and with some mild jumping up and down.

TomW
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Re: First foilboard

Postby TomW » Tue Sep 12, 2017 6:15 pm

Going back to the drawing board, I'm going to design a blank that is a bit thicker, less concave on deck.
Then I'll laminate bottom with wide, 200mm Uni D cf 250g strip x 2, full length, plus 3 layers 6 oz glass.
Deck I will put down same cf as bottom, 4oz glass, 1 layer veneer and 2 x7oz glass.
I'll have HD foam insert where plate goes or I might use fin boxes.

BWD
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Re: First foilboard

Postby BWD » Tue Sep 12, 2017 6:52 pm

Sounds pretty tough. Your double veneer deck may be overkill, but won't hurt.
The deck carbon will be in tension when the board in front of your mast is working as a cantilever beam supporting your front foot pressure (or all weight if/when you put both feet in front of mast).
I am glad I added uni CF (2 x 180gsm, 25mm wide) to my paipo deck when converting for foiling. Board feels stiffer, better overall, compared to when it had only bottom CF strips.
Look forward to seeing the results!

TomW
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Re: First foilboard

Postby TomW » Sat Sep 23, 2017 3:21 pm

Cleaned it up and sealing the wood prior to putting on a last layer of glass on deck and around the rails. Weighs 3900g now. I think it's pretty indestructible now.
2017-09-23 12.35.36.jpg

TomW
Very Frequent Poster
Posts: 1835
Joined: Wed Oct 05, 2005 6:43 pm
Kiting since: 2001
Local Beach: Vejbystrand
Gear: Homemade 4-1
North Mono 7 & 12
RRD Obsession 9
Core XR3 12m
Brand Affiliation: None
Location: Sweden

Re: First foilboard

Postby TomW » Sat Sep 23, 2017 5:17 pm

Quick lamination with an orange tint.
2017-09-23 17.15.02.jpg


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