You’ll have to guess… The LIFT folding prop is a simple and effective design as you can see on the vid.
Seems that you have the perfect SLA printer to reach the target, perfect surface and high density material…
Amazingly, folding prop blades (including LIFT’s) are straight (not as FR), I suppose it is to offer more apparent surface, therefore more pressure, to water flow when not in rotation.
It should have enough power! I forgot I stripped the heatshrink off the connectors. Just put some new heatshrink on or solder the cables directly. The prop looks nice!
I have just ordered a beastly 110mm cleaver prop (racing) for my setup. It’s going to be very interesting how it will run!
It’s quite a power-hungry prop, but with a foil it should be a bit different beast altogether.
One recommendation for your setup is to make sure both the gear and motor are properly heatsinked. I noticed when I tested the setup that both produce a bit of heat. I had started cutting the aluminium pieces, but never finished.
Above 50kmph (30 knots), falling off the board could mean loosing a eardrum + soar neck. Kiteboarders wear a helmet that hide ears (for ex Gath helmets) otherwise earplugs. That’s where board foothooks become useful NSI Foothooks otherwise we will soon see efoil riders holding a leash attached to the board nose like esurfs.
Foothooks are expensive. It’s possible to make DiYs using a PVC pipe (and hot water) filled with epoxy resin for extra stiffness and durability.
That was exactly one year ago so opinions might have changed. New foilers appreciate 65/70cm. The ones used to 90cm either regret their lost 90cm or don’t want to use anything else. To get best of both worlds, buy a cheap 65/70cm and adapt it. Once you feel confident, try your 90cm mast. Choice is luxury.
Then there is the cable length issue: don’t cut your motor cables too short if it is possible.