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by Jyoder
Sun Nov 18, 2018 8:36 pm
Forum: Hydrofoil Builders
Topic: foilboard core materials and physics
Replies: 5
Views: 627

Re: foilboard core materials and physics

I wonder what the best strength to weight use of carbon cloth is for a foilboard. Is it better to lay it flat on the deck or would it be more efficient to make I-beam stringers out of it between lateral halves or thirds?
by Jyoder
Sun Nov 18, 2018 8:33 pm
Forum: Hydrofoil
Topic: The shorty: 60cm micro board
Replies: 10
Views: 1155

Re: The shorty: 60cm micro board

Stance width...
I decided on 60cm (24”) long micro board as that’s my narrowest comfortable stance right now and wanted to try that extreme.

I guess if I ride “toes to the nose” or downhill ski style I could go even shorter 😜
by Jyoder
Sun Nov 18, 2018 6:09 pm
Forum: Hydrofoil
Topic: The shorty: 60cm micro board
Replies: 10
Views: 1155

Re: The shorty: 60cm micro board

Vs Big and flat.
by Jyoder
Sun Nov 18, 2018 4:09 pm
Forum: Hydrofoil
Topic: The shorty: 60cm micro board
Replies: 10
Views: 1155

Re: The shorty: 60cm micro board

$12 kids play mat (Eva foam) from eBay plus a can of DAP contact cement.
by Jyoder
Sun Nov 18, 2018 12:17 am
Forum: Hydrofoil
Topic: The shorty: 60cm micro board
Replies: 10
Views: 1155

Re: The shorty: 60cm micro board

I’ve tried a few pocket boards with banana rocker and didn’t like it. I don’t like the feeling of my front foot higher than my back.
by Jyoder
Sat Nov 17, 2018 1:20 am
Forum: Hydrofoil
Topic: The shorty: 60cm micro board
Replies: 10
Views: 1155

The shorty: 60cm micro board

I threw this together this week to experiment with. 60cm x 38cm. XPS foam from Home Depot and 3x 4oz glass top and bottom. 22mm carbon fiber tube I had from a bar project epoxied in middle. Weighs 1.0 kg. Cost maybe $30 plus time. Took some time to figure out how to water start- basically have to an...
by Jyoder
Thu Nov 15, 2018 3:07 pm
Forum: Hydrofoil Builders
Topic: Using bodyboard with stringers?
Replies: 5
Views: 371

Re: Using bodyboard with stringers?

Saw pics on one where the body board was cut up and a fiber glassed core added then foam glued back on outside to resemble the original board.
by Jyoder
Thu Nov 08, 2018 11:54 pm
Forum: Board Builders
Topic: 24 hr epoxy cured in 1 hr
Replies: 6
Views: 523

24 hr epoxy cured in 1 hr

I have some US Composites 2 part medium 3:1 epoxy that I’ve used many times. It takes about 2 hours to set at normal temp and cures in 24 hours or so. This is epoxy, not poly resin. Last night I needed some filler and so experimented with some Bondo auto body filler powder, figuring (maybe incorrect...
by Jyoder
Thu Nov 08, 2018 11:44 pm
Forum: Foil Kites
Topic: Bar without Trim adjustment
Replies: 16
Views: 1914

Re: Bar without Trim adjustment

Or you could buy my extra carbon bar. 😀
by Jyoder
Tue Nov 06, 2018 10:06 pm
Forum: Hydrofoil Builders
Topic: foilboard core materials and physics
Replies: 5
Views: 627

foilboard core materials and physics

Help me understand the physics of foam core layup and board strength and rigidity. 1. Thicker boards are usually more rigid. Why? Is it the extra core material providing strength, or the thicker rails giving more skin material that provides stiffness? Traditional surfboards need to flex, so reliance...

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