This locomotive can fit on lego duplo tracks. Blender files are provided for adjustments.
Required hardware :
- Motor with a diameter of about 21mm
- 2xAA battery coupler, and hot glue or a ziptie to secure it to the vehicle
- A couple of elastic bands or hair ties to increase wheel traction
- 2 M3*50 screws
- A few M3 nuts
- A few M2*20 screws and nuts