I build efoil about 2 monts, and it’s going to finish.
I have successfully test drive trust on an inflatable boat
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Fiber glass can be stronger than carbon…
@SoEFoil to make first prototype fiber glass is enougth, it’s cheaper. and it don’t conduct electricity. Carbon have only one advantage - stiffness, and it’s very important advantage
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So interesting, what is the material of the mast?
And the back wing, will you 3d print it?
Sorry for my bad english 
Could you confirm it is PacificMeister Prop_rev3_3blade.stl prop casted in alu ? How do you balance the prop and improve the surface finish ?
What was inside the sand before pouring the fusion aluminium: pla, wax, EPS object ?
Would you have any picture of the intermediate steps :
A - before the video was filmed that is from 3D printer to shape making in the sand ?
B - from 1-Raw to 2-Polished drilled object ready to be mounted on an efoil motor ?
@SoEFoil Yes it is PacificMeister’s Prop model. The first cast was unsuccessful. The printed part is sanded, then the putty is sprayed on and sanded again. balancing was not done. because of the complex shapes of the blade, it was impossible to remove the prop from the molding sand without destroying the mold. There are 2 approaches: 1) make a composite model of the blade and cast into a sand mold 2) make a wax model, make a shape, melt the wax, pour the metal. Next week I plan to make a casting on the 2nd option, since surface after casting will be better
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Do you mean you have pictures of the steps before the video ?:
I want to do a 3d printed foil(only wings). When will you test the wings? I want to do surf with a foil like that, without the electronics.