> > The requirements for rigid tapping are less stringent than for PID spindle > speed control. My 50-tooth one was entirely adequate for gear-hobbing. > > Another option would be to use a single index from the spindle and use the > motor encoder for the A and B phases. > Though you will need a hardware counter for that many PPR. You can change > the scale on-the-fly in HAL when you change gear. > > > -- > atp
I've attached the spec page for the Bergerda AC Servo controller. It looks like the encoder from the motor can be fed out with a divided ratio. Not sure about the dividing part yet. Hopefully this weekend I'll have some time to play with it. The 1.8kW motor is much smaller than the big 2HP single phase fan cooled motor. And the AC servo that is comparable in torque and RPM to my DC Brushed ones from AutomationTechnologiesInc.com is also much smaller. It won't stick out on the X axis as much. John
BergerdaServoSpecs.pdf
Description: Adobe PDF document
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