There are some outfits in NZ where you can get your prototyping parts laser sintered in Nylon 12.
https://www.callaghaninnovation.govt.nz/addlab/our-printers
Quality is impressive and material is super tough. Although not sure if a bit of flex is OK for the blades, or if you need the stiffest material possible.
Interesting idea of using nylon.
3d printed CF-reinforced nylon filament seems like it might be worth a try. Nylon seems to have much higher impact toughness than ASA or PLA, as it is flexible. The carbon fibres reinforcement make it easier to print without warping, and provides more stiffness and strength. However, it is twice the price of PLA/ASA. I don’t think a bit of flex would be an issue for a foil assist, as the power level is low.
Not 100% sure but think some of the smaller outboard propellers are some type of black nylon mixed with glass fiber reinforcement. Ordinary glass is probably better than carbon in this application, carbon is too stiff to work well together with nylon.
Have anybody the file for the threaded shaft Version the links are all broken
In the coming weeks I will release a commercial folding propeller if that’s interesting for you. It’s compatible to almost all inrunner and outrunner motors.
There are already 5 beta testers and me. If all are happy I gonna release it.
It’s worth the wait, the folding prop looks very good!
Greetings Frank
Wiill it be… 3D printed, moulded, casted , CNCed ?
3D printed composite with glass (no FDM) which holds up the forces.
The esun ePA gf is available locally, at about double the price of PLA, impact tough and produces a nice print finish. If I can design a prop I’m happy with, I’ll probably give it a try. The trick will be working out how big to make the diameter, pitch, and blade area so that the power consumption is minimized but it still has a bit of push to get into waves, and which kV of the 6374 to get.
I am building my downwind assistant with a 6374 170kV and 6S batt , I went for 130mm prop due to the lower torque. I will provide a complete set of instruction if it works…
Very interesting. I’m waiting for the results.
Wow. I think 160mm is too big for 63100. Can you log your drive?
I was using for awhile Volker’s prop 3D design 4 Loch 158 0.38 1.05 15 NEW | Tinkercad with reduced pitch for my 140kV motor. This is a folding version of it. Will see results tomorrow.
Hello
I am looking for a 3d file to make a splined propeller, because my propeller causes big vibration, I think it is not balanced and it has a centering problem, if someone made this type of propeller, I am a taker, thank you
I found the link for the hub for the propeller. Does anyone have active files for the blades? I’d like to experiment with some alternative 3d printer materials.
Also - I have access to a CNC router that’s capable of aluminum machining if we get something working I might be able to help make something.
Thanks!
Austin
Has anyone mounted this type of propeller on a 65161 toothed shaft motor because I cannot find the dimensions (drawing)
I don’t think this is a viable approach because the best propellers (for e-foils) don’t use slotted hubcaps. If I were you, this is what I would do as a first step - using a press to extrude the slotted brass sleeve. This bushing is then machined, preferably on a lathe, to have the smallest outside diameter possible. This first step will not only minimize your motor’s biggest weakness (the splined shaft) once and for all, but more importantly, it will create the ideal conditions for attaching some of the many times proven propellers.
