Tower Crane: control 4 dc motors

Dayum. Could be. I worked as a power tool sales person and collected the motors out of dead and dying battery drills.

Umm, 1. Not sure. 2 Yes. I have remembered that Neil dialed the amps down real low when we were working on the Stepper motor. Not sure how to dial the amps up again.

Don't know.

Yep. I have an itsy motor, I'll swap that in to see what happens.

Do I need more volts? Maybe 11.1 Lipo. That'll have a bit of grunt.