RE: [CAD_CAM_EDM_DRO] SDA motors

I think you will have a better chance of getting the performance you are
looking for by switching to drives that handle a higher voltage and a
higher voltage power supply to match and use your current motors. High
speed torque is controlled by the inductance of the motors and it takes
voltage to overcome that. The drive you have is a good unit within it's
capacity, but 36 volts is limiting.

Another possibility is to reduce your reduction ratio to get the steps
per inch down and run in the fatter part of the torque curve.

Tim
[Denver CO]
Stepper motors, drives, and encoders
http://www.KTMarketing.com/CNC.html

I have not made a web page up yet, but I have a very limited quantity of
new Pacific Scientific 600+ in/oz NEMA 34 steppers for sale. Contact me
off the list at timg@... for more info.

> This is my setup:Pacific scientific 23 220oz, camtronics 2amp board
> 36v PS, and I'm getting about 5000 sps max. before the motor run out
> of usefful torque for rapids. I really wish I could get at least 7000
> sps. before the motor run out of torque.
> I was thinking in getting one of those SDA motors to give it a try.
> Has anybody run one of those at 7000 sps and 36v.?