Contact   Imprint   Advertising   Guidelines

Search found 405 matches

Go to advanced search

by foam-n-fibre
Wed Dec 13, 2017 12:01 am
Forum: Hydrofoil Builders
Topic: Mast/Strut Fiber Angles
Replies: 4
Views: 123

Re: Mast/Strut Fiber Angles

When I refer to +45 and -45, I mean that the cloth is woven that way, with fibers on both diagonals and none parallel with the roll (it's woven with very thin tracers along the 0 axis to hold the cloth together better). But you are right, it is possible to lay cloth on a diagonal at a shallower angl...
by foam-n-fibre
Tue Dec 12, 2017 7:07 pm
Forum: Hydrofoil Builders
Topic: Mast/Strut Fiber Angles
Replies: 4
Views: 123

Mast/Strut Fiber Angles

OK, time for another theoretical question. What is the best angles for the fibers to run on a mast/strut? On the one I built, I used unidirectional carbon (0 degrees) and also some biax at +45 and -45 degrees. Obviously 0 degrees (top to bottom) is best for bending. Is 45 degrees the best for torsio...
by foam-n-fibre
Wed Dec 06, 2017 12:57 pm
Forum: Kitesurfing
Topic: Ram airs crash in 2017
Replies: 23
Views: 1495

Re: Ram airs crash in 2017

Ah c'mon, where is the usual cut and paste of a huge long post? It's trolling at its finest! After all these year I still get a laugh out of it. PMU you're not trying hard enough anymore, this latest one is a real disappointment :(
by foam-n-fibre
Thu Nov 30, 2017 11:09 pm
Forum: Hydrofoil Builders
Topic: Effect of Different Epoxies
Replies: 21
Views: 4384

Re: Effect of Different Epoxies

With all due respect BWD, I'm here to learn, and asking for people with real world experience. I have 2 mechanical engineering degrees so have some understanding of materials. For that matter when I look at properties of RR vs West I don't see a big difference, and certainly don't see why West would...
by foam-n-fibre
Thu Nov 30, 2017 1:57 am
Forum: Hydrofoil Builders
Topic: Effect of Different Epoxies
Replies: 21
Views: 4384

Re: Effect of Different Epoxies

Thanks for some interesting replies here. So far I am not shopping around for a new brand of epoxy, but I'm still interested to hear if anyone has some real head-to-head comparison results.

Peter
by foam-n-fibre
Wed Nov 29, 2017 3:59 am
Forum: Hydrofoil Builders
Topic: Effect of Different Epoxies
Replies: 21
Views: 4384

Re: Effect of Different Epoxies

Pre-preg? No, I'm too old school for that. Considering that I order my epoxy and carbon from the US, I shudder to think what would be involved if I had to get stuff that had to stay refrigerated. My fast potlife was fine, but it might depend on how hot your shop is. Rynhardt, I think you are describ...
by foam-n-fibre
Tue Nov 28, 2017 8:53 pm
Forum: Hydrofoil Builders
Topic: Effect of Different Epoxies
Replies: 21
Views: 4384

Re: Effect of Different Epoxies

So, are you saying to made a carbon foil with Resin Research epoxy and found it had more flex, or are you saying that in general, it is a more flexible epoxy? As I said in my first intro, I am wondering of the flex we feel in a thin skin laminate really translates into flex in a thicker object with ...
by foam-n-fibre
Tue Nov 28, 2017 6:47 pm
Forum: Hydrofoil Builders
Topic: Effect of Different Epoxies
Replies: 21
Views: 4384

Effect of Different Epoxies

Hi, I know I have seen some talk about different epoxies in the past, but I'm wondering if anyone has done similar builds with different epoxies and has seen a real difference. I can imagine that a stiff epoxy when laid up as part of a thin skin might seem to be really stiff and dent resistant over ...
by foam-n-fibre
Thu Nov 09, 2017 12:34 am
Forum: Kitesurfing
Topic: Board Size Question
Replies: 6
Views: 481

Re: Board Size Question

Width matters more than length in terms of total area of the board. Add 5 cm length over a 40cm width and its less than a third in the increase in area compared to if you were to add 5 cm of with over a 135 cm length. And yes, rocker matters too. I have built boards with identical rocker and outline...
by foam-n-fibre
Wed Nov 08, 2017 1:58 am
Forum: Kitesurfing
Topic: Hung Vu, a kitesurfing pioneer, how did he help you?
Replies: 13
Views: 865

Re: Hung Vu, a kitesurfing pioneer, how did he help you?

I first found his online info in late 1999 or early 2000 as I was self teaching myself. It was very helpful since it covered all the basics, and did not assume that there were a bunch of other kiters at the beach - because there weren't! And no, youtube didn't even exist back then, so there were no ...

Go to advanced search

cron