proper steppers wasRe: Taig retrofit servo motors

Hi Ballendo, I am working towards a target of
20rps to 30rps with the right motor. There is
a distinct difference to the way I can go
about tuning the hardware for each limit.
I was trying to figure out what people really
need, or would like. :o)
-Roman

> As I said before, this is a BIG question. I'm afraid that the range

I

> would 'have to' give (as an answer) will do little to help you. Can
> you pick a more specific application? For example, even "plain"
> aluminum milling is done at rates from < 20IPM to 600+ IPM by
> machines and people on this list. For each person, the answer (<20

to

> 600+) is "typical"!?!
>
> >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.<s>
>
> I remember when I first started hearing, "low inductance motors. Low
> inductance motors... " instead of "match the drives, motors, and
> usage". You bring up a good point, IMO.
>
> >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)
>
> How about telling US what we can expect from the u-step drives

you've

> been 'hinting' at? :-) Then, we can tell you whether they represent
> something we would use...
>
> Hope this helps.
>
> Ballendo