Re: Does control s/w affect machine performance? max step rate

> >IIRC, Mariss posted a list of maximum stepper speeds based on

frame

> >size. It's not he end-all of charts, but I thought that only the
> >NEMA23 exceeded 1,000 RPM with any practical energy left to move
> >anything ?
> >
> >
> I showed off a very hasty 2-axis retrofit of the 150 Lb minimill at

the

> last NAMES show. I have some very old size 34 stepper motors

connected

> to the original leadscrews with a 1:1 belt drive. I was demoing it

running

> at 90 IPM, which works out to 1440 RPM. That did take 48,000

steps/sec

> on the G201 (10x microstepping).
>
> Jon

OK, does that show up as 32,000 steps per inch ?

Seems that the thread pitch is small and that a faster pitch would
offer about the same delivered power ?

halving the pitch and going 1:2 would offer the same speed. halving
the pitch with 1:1 would run the motor lower on the curve and offer
the same power ?

It seem that if you have 32,000 steps per inch, you are way past the
resoulution one would expect for a leadscrew. 10,000 steps per inch
would offer a theroetical 0.0001" placement.

I'm not saying that super fast pulses don't have their place, but is
there a real need for them ?

Dave