Oops.... I meant per minute, not per second.....and it is still way too high for a mechanical switch.
Steve

"Michael A. Terrell" wrote in message m...

Steve Lusardi wrote:

In the first place, using a switch which operates 100 times a second is ludicrous.


"Buerste" said "100 times a MINUTE'.


You are just asking for failure. This is
especially true when you have so many options to create electronic event triggers. secondly. Stepper motors are prone to
undetected error slip when the load changes, as well as being notoriously inefficient because half the current is used to brake
and hold.

As I do not know the application, I cannot be very specific for a design, but I would consider using magnetic clutches and
brakes
as well as some feedback device to flag motion error. Please keep in mind that cheap is relative to the loss of production.
Being
penny wise and pound foolish is dumb.
Steve

"Buerste" wrote in message ...
I have a simple application for a stepper as a wire feeder(of course). I have a 34 frame stepper with a 12:1 gear box and a
Axidyne (tolomatic) 80v 5A microstepper drive. All I need it to do is run the motor 5 revolutions (5/12ths rev on the gear
box)
whenever a limit switch is hit. That will be about 100 times per minute.

What do I do that's reliable and cheap?



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