Determining maximum RPM for a stepper motor?

Vern Graner

I have a project that I plan to use a stepper motor to operate. The motor needs to spin at about 3k-4k RPM. When I started to research stepper motors, I noticed that unlike DC motors, they do not list a Maximum RPM. Is max RPM derivable by examining the typical specs included for a particular motor?

Most specs seem to indicate the degree per step, coil voltage / amperage and coil disposition (i.e. unipolar/bipolar) physical charictaeristics etc. But I haven't seen any with RPM ratings..?



Vern

PS: FWIW, I do plan to operate this device with the Basic stamp and a serial stepper motor controller of some type.

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Vern Graner CNE/CNA/SSE    | "If the network is down, then you're
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Newzed

You can not use a stepper motor for what you want.· Steppers are designed to step, not spin.· Your basic stepper takes 200 pulses for one rpm with a 10ms pause between steps.· A little math will show you it can't be done.· You could use a DC motor, driven by PWM and a healthy-size opamp.

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Sid Weaver
Do you have a Stamp Tester yet?
http://hometown.aol.com/newzed/index.html

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