Boat motor mount for 36mm electrical motor

I got an RC old boat with incomplete parts, no mount, missing electronics but otherwise in good condition, so I decided to make some models for it! 

The motor is a brushed 30+ year old Mabuchi RS-540SH which has M3 mounting holes with 25mm spacing. The mount will work with most other 36mm motors as well.

The frame is a bit of an oddity, it's an aluminium frame but is most likely hand bored due to some irregularities in spacing between the holes. From the closest edge, the holes are 7.5mm, 19mm and 29mm.

All holes are made for M3 screws and M3 heat inserts can optionally be used.

I've added test piece for the motor mounting, a model of the Mabuchi RS-540SH and the frame itself (if you decide to print it, you most likely need to add holes through software).

There's currently no way to adjust the motor angle or distance to the shaft since the frame itself was already aligned with the shaft in the correct angle and by adjusting the shaft, I was able to get the distance to the shaft correct for my boat. I'd recommend using spacers (i.e the test piece) or adjust the shaft itself to get the correct distance. I've added some extra margin between the shaft connector so it should be easy to add.

The model is made with adaptability in mind so feel free to comment or contact me if you need some other variations for your project.

I've printed the parts with both PLA and PETG at 0.2mm layer height. No support is needed, but I recommend using organic/tree supports if you're worried about the thinner parts.