Grounding

Lately i have been having some difficulty with the train, in particular the gears getting stuck, the current not getting to the motor, the wheels slipping and the motor torque. Fabricating the trains has been tricky, because of the necessity for accuracy, a lot more than the typical architectural world. But anyways here are my solutions:

Motor will have to remain the same, but a second motor will be added to the chassis on a few trains, to see if it works, and it add a variety to the bunch. I thought i could remedy the slipping wheels, with pieces of plastic intended to wrap the wheels, but the size is wrong. Unfortunately can't find the right size anymore. But if i use either wrapped electricians tape, or epoxy on a thin rubber band, that should provide adequate traction. In regards to the power to the motor, connecting to the rail is the issue. I need to redo the grounding strip and added another strip that connects to the side rail. With the use of copper wrapped in a spool, a spring like surface is created, allowing some inconsistency with the track.

I have tried this with one train, and it seems to be working. With the Arduino hooked up, it works well. Another thing i noticed was the motor is getting really hot. The voltage is to high, so i might just reduce the voltage through resistors