Lyson motor conversion kit adapter

This is a coupling to mount a lyson basic line motor conversion kit (https://lyson.eu/czesci-zapasowe/3067-electric-drive-for-minima-honey-extractors-dedicated-for-lyson-extractors-5903661506698.html) on my (or any) honey extractor that is not made by lyson.
I have included the openscad file so it can be modified to other dimenions (most notably the holes to mount it on the extractor itself).

I have mounted it on my 400mm extractor with great success. Just disassemble the hand crank and gearbox from the extactor, drop two of the bolts from the gearbox (m8) in the hexagonal holes of the coupling, and mount the motor with the supplied M12 nuts and washers. then place the assembly on top of the extractor with the m8 bolts through the top of the extractor lid, and screw on and tighten the m8 nuts.

You still need to make a coupling for the shaft itself. I did that by making a T-shape from a square rod, with a slot in the top, and a strip of metal as the cross inserted in it, and wel