Novice Question

[sanddrag]

Originally posted by f22flyboy
we've decided to use the drill motors (no gearbox) with direct drive to the wheels, and design a very lightweight bot. At 20,000rpm, our bot should go about mach 19.

Nice try. You'd actually be gearing up the motors with a wheel of any size that you use. Plus, you would never have enough torque to accellerate to such a high speed. If you were already going that speed, and then your motors kicked in, it probably would keep going really fast if all friction is minimal.

PS dmellich,
Don't mind my post and the above one. We're just having fun.