Fingers crossed it'll cut ally

[irving2008]

Yes please!

There was an article in MEW (Feb 2008 issue, No 135 ) about making outrunner motors but there wasn't much about how to power them. I'm guessing that the 'servo tester' provides a PWM pulsetrain and the speed controller (is this aka an 'ESC'?) sees the pulsetrain and uses electromagick to provide a 3-phase supply to the motor.

John

Quickly sketched this to show aircraft vs cnc application for those interested:

(You could probably delete the 4.8V supply if using a BEC ESC)

1/ Whats the PWM signal characteristics?

2/ 'Servo Tester' sounds an expensive beast

3/ Surely you'd want a 0-10v input so you could control spindle speed from MACH3?