🚀 go-pugleaf

KEN.WILLIAMS@OFFICE.WANG.COM ("Ken E. Williams") writes:

>Apologies if this is a FAQ.  What is the net-wisdom on using stepper motors
>from surplus diskette drives?  Do they have enough power/torque to be of any
>use in a light duty experimental robot platform?  The two that I have are
>marked 12V 0.08A 3.6 degrees/step and 12V 0.16A 1.8 Degrees/step.

Actually, I have used old diskette stepper motors for some "light duty"
things. They work ok.  If you still have the circuit board from the 
diskette, there are a some driver chips that use TTL logic to turn the 
stepper coils on and off.  The drives I have taken apart used  754xx
(75454 I think) 8-pin chips for each coil.  The chips deliver from 3-500 mA
at the stepper motor voltage.  If you use them, all you need supply is 
the control circuit for direction/speed.  Hope this helps.

-KJM