The hub can easily been modified for a 12mm shaft und and nut or anything else. Let’s see how it goes 
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Ever since i first saw a folding prop and the outrageous price i’ve wondered: why don’t people just order these custom made from a machine shop? it won’t be more expensive.
There really doesn’t seem to be that much to it once you have some blades you like?
Anyway, good call in doing these, hope results are great! 
How is you folding prop version doing ? I can imagine tuning is a very important step to reach the LIFT folding prop reliability.
I’m curious if it will have enough mass to keep the blades folded in the optimal position. Have you measure the mass between a blade from a Lift prop and on of the 3D printed ones?
i think this prop doesn’t have to rely on the centrifugal forces. The blades will be forced forward by the drive force, stopping against the hub.
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Hi, guys,
this is the first working 3D printed folding propeller for Efoils. It has already been tested in water under full load (4500W). You only need two M4x40 hexagon socket screws and you can start. The propeller is designed for the 65161 flipsky motor.
It works best with the following printing parameters:
-PLA+
-no support
-40mm/s
-the wings should be printed horizontally
22 Likes
Very nice!!
Greetings Frank
Wahoo !! Would you tell us more about your feeling on the water / behaviour / speed / amps drawn / comparison with other props ? Do you intend to have it CNCed into aluminium ?
I needed to reduce the pitch for designing reasons but I could achieve about 30 km/h. It’s has quite good trust (blade diameter is about 186mm). At higher speeds it will vibrate. But that’s because Its not balanced at all.
If I release the throttle completly the board will stop in short time like before. But the blades are completely folded. Also If I stop while foiling and than give full throttle again it open up the blades. For that it must be rigid. I’m really looking forward to test in waves. But that will be in October…
So please print it out and tell us how it behaves powerless
3 Likes
Any remix for the threaded shaft?
I’m really running out of time because I’m moving to the sea in the next weeks. Mabye some other forum member can do this. I know that there is already a modification for the 6300 outrunner. Ask @Ackermann 
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I did a file for a 80100. Can upload it in a day or two 
If anybody modifies the hub for the FR motor, please share the file! I would like to try it on the ocean!!
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What did you build this in? If you have it in Fusion, I could modify it for the Flipsky 12mm shaft.
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Can you upload the remixed file @thingiverse too?
Don’t have an account there, I’ll upload to grabcad, why thinginverse?
To have it in one place. But it’s not that important
Any body modify this for other motors and different pitch or size of the propellers ?
I modified it for APS 63100: 3D design V4_folding_prop_base_63100 | Tinkercad
It works with blades shortened to 145mm diameter but can certainly be optimized for this motor (only tested once).
2 Likes