MAST extension for internal ESC

The Daytona hollow mast could be a promising solution for a big efoil company (Flite, Lift, …) but IMHO inappropriate for DiYers or small companies.

Here is a trade-off: the mast extension for ESC that can receive a compact ESC (@nickw1881, or a 120Acont 81x31x17mm MGM compro. The idea comes from the kitefoiling scene, costs 200 to 300€ in carbon (Groove, Ketos, …), 100+ usd in aluminium like Mantafoils or GoFoil. Here is the KETOS carbon one.

Mast extension for ESC

This efoil mast extension needs to be hollow, an ESC space must be easily waterproofed with a top and bottom joint, DiYed or CNCed from aluminium (like Mantafoils, GoFoil, …). The outside must be streamlined but the inside on the plate side can have a rectangular custom shape to match the ESC case.
This ESC mast extension could also be molded in aluminium around the mast airfoil section, see @Beninspain method using lost PLA (I am looking forward to watch you video casting a motor pod :star_struck:)

A proof of concept rough and dirty test.

Clearly needs refining but this was the fastest print I could muster just to test the theory.

@Beninspain Sooo promising ! Is it plain or hollow like the original PM pod STL ?

Here is in carbon what a mast extension for ESC would look like freely inspired from the deep tuttle to plate adaptor from Groove Kiteboarding, Italy, 260€ :

ESC mast extension 03m

Its solid. It took the form very well. the inside of the zero infill print was as rough as you see the alu piece. i think it will work and maybe on a lathe cleaned and polished.