how do you guys do it? i had several tries installing a motor and i couldnt get it right after the first few tries. when i tightened the motor screws the pinion kept creeping up to the spur gear and always ended up too tight.
what i did was fold a piece of paper in half (like two pieces of paper together) put it in there and it worked somewhat but i realized the pinion was too far apart from the spur. then i just put another piece of paper in between, but didnt fold it in half. that seemed to work.
whats the best way?