Update 22.4.2017
I added new shaft component. If you have trouble to print original shaft try "gearbox_shaft_v2"
Few hardware parts needed to make this work. You will need also 2mm drill bit. Check link to see how to assembly it.
https://www.youtube.com/watch?v=QSto7soM3mw
gearbox_covers.stl | 164.5KB | |
gearbox_gears.stl | 658.3KB | |
gearbox_shaft_v2.stl | 726.1KB | |
gearbox_wheel.stl | 899.6KB |