I can do a quick CAD file for you, if you provide the critical measurements. A drawing would be helpful as well. You’ll need to get it printed elsewhere but there are commercial solutions for that. There are also some private people who provide inexpensive printing services via some websites.
Received your dimensions, motor side will match motor dim. and prop will match prop dim.
Hub thickness will be 21.98mm and will not have a lip.
I noticed in your pics there is some kind of bushing on the motor side shaft opening is this necessary or can it be open enough for the shaft to have .5mm clearance. It might have been used to keep water out of the bearing area, just guessing…
I very much appreciate you sharing the gifts of your intelligence, time, and skills to make my Lift efoil more efficient.
Your first file was test-printed over the weekend and was nearly a perfect fit in all dimensions… There were 3 minor edits that were needed. I look forward to trying the print from your most recently edited file on the Lift later today.
The cowl mainly has the forces of water on it, so it seems like an ideal part to 3D print.