Skywatcher 200P stepper motor bracket

Modified the original bracket for use on a Skywatcher 200P reflector. Stepper motor is the Nema17-PG27 with a flexible coupler. It is for use with a myFocuserPro I've built.

Bolt hole spacings needed changing as did the height of the platform for the stepper motor. Printed easily in PLA, but I wanted to use ABS, which warped badly when printed standing on its edge. So I made back face of the bracket flush the whole length so it can be printed with this side down. This solved the warping