Whichever one you use, because it may break off the tabs on the first turn

Fun with fins... have a good session! Bob!

It may be interesting to see how my self shaped pivot fins hold up. Six layers of wood plus four layers of fibreglass on the twin tabs and two on the fin body. The fins are flat (no foil). I will start with the 7.5" fin and a two plus one setup using Cdrives as the side fins. If the tabs hold up I will move on to the 8" and 8.5" fins. Is anyone else making fins? You would think a 3D printer and then glassing over the plastic might work??
cheers

Bob

FRP said..
You would think a 3D printer and then glassing over the plastic might work??

I have made wooden fins, but for US Boxes. And they broke very easily, so I cannot imagine trying for FCS1 tabs.

3D printing, what I would do (Disclaimer: I never attempted 3D printing myself.) is print the fin, and then use it as a template to cut the the fin in a G7 panel (FCS fin tabs are 6.35mm thick), or G10 as it is easier to find. And as a guide to sand the foil of the fin, with some device to copy it (I have read a soldering wire works great).

Or you could try 3D printing with stronger materials. ABS, ASA, ... Carbon fibers.
Or 3D print a wax mold.