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Re: Getting more accuracy out of a stepper motor

Stepper motors have limitations on speed and accuracy. Speed is a

>function of the maximum steps per second the motor (and driver) can >do.

Jeez, folks... all one needs to do is look back some years at the line printers that were around. They were controlled by stepper motors, as well as by both linear and rotary optical encoders, and they had some fairly good accuracy.

For heavier applications like machine tool bed transitions, sure the task will be more difficult, but still quite doable.

Cincinnati Milacron, as well as any good Japanese CNC machine tool maker achieves 10,000th inch accuracies EVERY DAY! Guess what their drive mechanisms are?

Reply to
ChairmanOfTheBored
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Will you ever fix your NNTP time?

Reply to
Fred Bloggs

Yes, and disk drive (HDD) positioners, back 20+ years ago. But no more, except for your For heavier applications like machine tool bed transitions, sure the

*Closed-loop* AC servos even on low-end machine tools like Haas, let alone high end machine tools such as Okuma. The only stepper is in the $10 floppy disk drive (which Haas charges $1.000 for).

Best regards, Spehro Pefhany

--
"it's the network..."                          "The Journey is the reward"
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Reply to
Spehro Pefhany

Will you ever learn how to quote who you are responding to?

Reply to
ChairmanOfTheBored

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