Simple yet effective motor mounts, clamping on 8mm booms using four 16mm M2 bolts.
Can be used on any motor with standard 16 x 19 mm mounting pattern, using M2 mounting holes, like the first Cobra 2204 motors. Clamps the motor down on 8mm booms, only requiring 4 screws.
Note: a version for M3 screws is on its way as well.
Use high quality settings. I used 40 percent infill, which seems to be very durable. No need to go 100 percent.
Print 8 bottom pieces and 8 top pieces. The .STL files only contains one half. You simply mirror the same part and you get the corresponding other half.
After printing, bolt both pieces together and ream the 8mm hole using an 8mm drill bit. Also don't forget the 2mm screw holes.