Motorization of the 1/32 OpenRailway EMD SW1500

cults3d

This is a gearbox to motorize Daniel's wonderful EMS SW1500 locomotive (https://cults3d.com/en/3d-model/game/openrailway-emd-sw1500-1-32-locomotive). It uses a low RPM 580 motor. All axles and shafts are mounted on ball bearings. It's best to motorize both trucks to get more torque. Everything is printed in ABS. The frame and the cover are printed with a 0.2 mm layer height. The gears are printed with a 0.1 mm layer height. The truck uses 6 ball bearings (3x7x3 mm) and 3 mm steel axles (57 mm long each). The central shaft is 70 mm long. The gears have a back slot to insert a M3 nut and are locked on the shafts with a M3 grub screw. It's better to smooth the teeth with a triangular file. The Motor fits tightly in the Truck turret with help of a tiny bit of filing/sanding. Update 2017-12-06 : The wheels are inserted by force on the axles. As the wheels tended to slip on the round axles, I filed a flat at the end of the axles and used wheels with a half-moon opening. I've added them to the files. https://youtu.be/2gFcFqSgtN4