When I was building ToyREP 3D Printer, burned one stepper, so I took it apart. Maybe you will find it useful for some future project.
When it was disassembled I made also model of the plastic cap as it get broken very easily. You can use it as a replacement or to customize the colour but beware it was not tested yet.
This particular motor have gears:
9 teeth on motor shaft
32 to 11 on first axis
22 to 9 on second axis
27 to 8 on third axis
24 teeth on output shaft.
(32x22x27x24)/(9x11x9x8)=64
The other motor I got previously had:
(32x22x26x31)/(9x11x9x10)=63.68395
| 28BYJ-48_Cap.stl | 21.2KB | |
| 28BYJ-48_Cap_Open.stl | 21.8KB |
