Re: Taig retrofit servo motors

--- In CAD_CAM_EDM_DRO@egroups.com, ballendo@y... wrote:

> Roman wrote:
> >Dan, do you mind me asking, what rpm to get the sherline X axis
> >doing 72 ipm?
>
> Roman,
>
> I'm not Dan, but the Sherline leadscrews are 20TPI , so RPM= 72 x 20
> 1440.
>
> >I'm currently working on a stepper driver to give very high speeds,
> >and it would be nice to know what speeds people expect from servo
> >systems in different apps.
>
> This is a BIG question! Speed WITH torque? At what resolution? Etc.
>
> Are you asking what 'typical' per axis speeds of our CNC apps are?
>
> Ballendo

Hi, yes the typical axis leadscrew speeds would be
handy, and the preferred speeds too if it is possible.

Most of these new low inductance stepper motors
provide excellent power at higher revs, but because
people use cheaper drivers the motors can never
reach their full potential. I see it all the time,
people buying the lowest inductance motors, and
never running them over 10rps. They would have done
better buying motors whose max power is in the
correct rev range. These motors actually run
better at lower speeds, as low inductance motors
are very choppy and resonant.

I am mainly trying to determine the expected
performance from servo axis drives, as I think some
of the new stepper drivers can approach this
performance, and since people already have the
low inductance motors... ;o)
-Roman