+xG'day guys, im needing some help with a project of mine for a friend, he's gotten me to make up a few test sets of free diving flippers, ive pretty much copied a professional set from him, ive gotten the tapper (thin at one end thick at the other) and thickness (1mm to 2mm) correct but I still can't get near the flexability as the professional set, wondering if theres a additive or something i can mix with my infusion resin to make it more flexible as theres seems stupidly flexible, i was also thinking maybe i go away from just using 2x2 twill carbon and maybe add in some unidirectional carbon? Any help will be much appreciated 👍
I have just come to the end of a long R and D process of exactly this in carbon and glass.
Its not easy and it has to be exact.
You need uni core and multi direction skins.
I dove tail my uni otherwise you get stress lines, this gives a diamond pattern.
If you go 200g more or less you will end up with too stiff or too flexible.
If the fabric compresses more than another they will be more flexible.
I have a spreadsheet of layups I've tried.
This is my first time writing on a forum so I'm not sure of how things are done.
I would share my findings with you but not publicly.
In short though, 4 layers of 200g carbon UD with skins of 200g carbon Twill with a feathering from 250mm too the tip will save you many hours and pounds of materials.