Coaster Accelerator

I need help / suggestions.

 

My plans are to try:

- add better support for the wheels (top and bottom)

- Use a higher torque motor and gear it up again (24->8 + 24->8) or use a single 40 -> 8

 

Sketch of gearing here:

www.flickr.com/photos/51436400@N05/40146406485

Done