ARU Model C4003 HO 1-Axis Drive Power Chassis Kit (HO/O Narrow)

A simple power unit kit with a three-point support equalizer.
It can be built and run on your own car body and floorboard.
Floorboard is not included. Make your own with a plastic board.
Includes exclusive weights. Since the worm gear changes depending on the thickness of the floor board, it will adhere to each other.
Compatible axial distance 23-54mm
Shortest axial distance 23mm without machining
Longest axial distance with current collector plate 54mm

– Because the floorboard in the example is metal, it is used as part of the electrical circuit. When the floor board is made of an insulating material such as a plastic board, use an electric wire for wiring.
– Use commercially available parts if the length of the screw is not enough.

*The 2nd and 3rd pictures are assembly samples.