Re: [CAD_CAM_EDM_DRO] Stepper motor
Posted by
JanRwl@A...
on 2000-12-05 21:32:09 UTC
In a message dated 05-Dec-00 05:56:39 Central Standard Time,
Ian@... writes:
in the "bipolar" mode as you describe, means FOUR times the inductance, so
MUCH slower operation! An "eight wire", with things re-strung so you'd have
two pairs of parallel windings would run much faster (1/4 the inductance to
"quench" between steps).
Though po' white-trash, I decided long ago it is "cheaper" to pay for the
best choice of windings and drivers for whatever size, as, in the end, you
are much better off! Back in the days I tried to do things using "surplus"
or "reconstituted" or "cheap", I ended up spending more than I woulda, had I
gone "top of the line" from the outset.
Think on it. Maybe not "every time, for everyone", but MOSTA TIME, anyway!
Jan
[Non-text portions of this message have been removed]
Ian@... writes:
> Now here's a very basic question which just needs confirmation or otherwise.Yes. But powering a stepper this way, through BOTH halves of each winding,
> Am I right in assuming that, on a 6-wire stepper motor, the specified
> current of 1.4Amps per phase refers to the current in half a winding - from
> the centre tap to one end, and that, if you are running the motor in
> 'bipolar?' mode using just the 4 wires across the ends of the total
> windings, then this current setting should be halved (same voltage feeding
> into double the resistance).
>
>
in the "bipolar" mode as you describe, means FOUR times the inductance, so
MUCH slower operation! An "eight wire", with things re-strung so you'd have
two pairs of parallel windings would run much faster (1/4 the inductance to
"quench" between steps).
Though po' white-trash, I decided long ago it is "cheaper" to pay for the
best choice of windings and drivers for whatever size, as, in the end, you
are much better off! Back in the days I tried to do things using "surplus"
or "reconstituted" or "cheap", I ended up spending more than I woulda, had I
gone "top of the line" from the outset.
Think on it. Maybe not "every time, for everyone", but MOSTA TIME, anyway!
Jan
[Non-text portions of this message have been removed]
Discussion Thread
Ian Wright
2000-12-05 03:55:28 UTC
Stepper motor
Jon Elson
2000-12-05 11:33:15 UTC
Re: [CAD_CAM_EDM_DRO] Stepper motor
JanRwl@A...
2000-12-05 21:32:09 UTC
Re: [CAD_CAM_EDM_DRO] Stepper motor
peterlou41
2004-03-20 22:26:40 UTC
Stepper motor