Messages

1

SmoothStepper USB / Re: Controller(pulse) frequency

« on: May 14, 2009, 11:31:58 AM »

Thanks, Hood.  I think Art's recommendation is based on keeping the load on your computer as low as possible and I fully understand that.  Do you see much degradation in your servo motor operation (smoothness) when you increase the SS pulse rate beyond the minimum required? I also am mindful of the fact that many servo drives, like Geckos are limited to 250KHZ until the G380s come out. So dialing up anything beyond that on SS would have unpredictable effects.

2

SmoothStepper USB / Re: Controller(pulse) frequency

« on: May 13, 2009, 12:47:25 PM »

Hood,

I know this from some time ago but I just saw it.  Doesn't the acceleration and responsiveness of the the servo system increase with pulse frequency? I don't have a SS but when I increase the pulse frequency 2 or 3 times what is required for the max speed on my servos using the PP I don't see much rougher operation and am able to set a higher usable acceleration. If your required pulse frequency is less than 100K using the PP, what advantage would you get by upgrading to a SS, other than a more stable pulse stream?

Steve