# Stepper motor help

**URL:** <https://community.sparkfun.com/t/stepper-motor-help/30565>\
**Category:** Old Forums\
**Created:** [March 20, 2015, 12:26pm UTC](https://community.sparkfun.com/t/stepper-motor-help/30565 "2015-03-20T12:26:54Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![elbowrust](https://avatars.discourse-cdn.com/v4/letter/e/85e7bf/32.png) [@elbowrust](https://community.sparkfun.com/u/elbowrust)\
**Post date:** [March 20, 2015, 12:26pm UTC](https://community.sparkfun.com/t/stepper-motor-help/30565/1 "2015-03-20T12:26:54Z")

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Hi all!

I have a stock pile of stepper motors which we normally throw away. I’m wondering if I could use these for a CNC application. Probably overkill but thought I would get your opinions.

Amatek HS 200 2231 0300

Max V 75

Rated phase current 3A

Holding torque 231 oz-in bipolar

1.8° step angle

NEMA 23 mounting config.

Any help would be appreciated.

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**Author:** ![jremington](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/jremington/32/6595_2.png) [@jremington](https://community.sparkfun.com/u/jremington)\
**Post date:** [March 20, 2015, 3:25pm UTC](https://community.sparkfun.com/t/stepper-motor-help/30565/2 "2015-03-20T15:25:57Z")

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There aren’t any hobby-type stepping motor controllers capable of the full 3A/phase, but if reduced torque will do, the Pololu DRV8825 board will handle 1.5 amps/phase without additional cooling. Be sure to follow instructions for setting the current limit. [https://www.pololu.com/product/2133](https://www.pololu.com/product/2133)

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**Author:** ![elbowrust](https://avatars.discourse-cdn.com/v4/letter/e/85e7bf/32.png) [@elbowrust](https://community.sparkfun.com/u/elbowrust)\
**Post date:** [March 21, 2015, 1:53am UTC](https://community.sparkfun.com/t/stepper-motor-help/30565/3 "2015-03-21T01:53:41Z")

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I don’t need that much torque. They will be running the x and y axis on a laser engraver so there will be minimal resistance. Can I run these steppers at 15v .5A and still get the necessary speed and precision?
