Quote Originally Posted by Roboteernat View Post
did you calculate the correct centre spacing for the axles when choosing chain length? The best method would be to fit the chain then the motors down.
not the one im looking for but this will help:
http://www.botlanta.org/converters/d.../sprocket.html

Thanks for the input. I am such an amateur, I'd originally considered having the drives mounted so they could slide back and forth to take up tension before fixing and this would have been a lot better.

Trying to continue now at this stage is more effort, but I will try.

I tested all the electrics again and it's all good. Still need to build the ramp have around 600g left for that which seems short but we will see.