box

thingiverse

A customized version of the 3D printable model can be found at http://www.thingiverse.com/thing:46700. Customize it using the Customizer app at http://www.thingiverse.com/apps/customizer/run?thing_id=46700. For your specifications, the 3D print will have 4 case screws, a helix angle of 30 degrees, a ring diameter of 60, an output mount height of 16, a final ratio of 6.55, and render part 1. The ring back radius will be 4, stepper motor is not used, the pedestal height for the motor is 13, and the planetary face width is 10.