# "Z" stepper motor getting hot

**URL:** <https://forum.onefinitycnc.com/t/z-stepper-motor-getting-hot/19161>\
**Category:** Original/PRO Series (Buildbotics) (Gen 1)\
**Created:** [March 3, 2023, 1:02am UTC](https://forum.onefinitycnc.com/t/z-stepper-motor-getting-hot/19161 "2023-03-03T01:02:33Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Hobbyist](https://avatars.discourse-cdn.com/v4/letter/h/5f8ce5/32.png) [@Hobbyist](https://forum.onefinitycnc.com/u/Hobbyist)\
**Post date:** [March 3, 2023, 1:02am UTC](https://forum.onefinitycnc.com/t/z-stepper-motor-getting-hot/19161/1 "2023-03-03T01:02:33Z")

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X50 workman

So I am in the middle of a 4 hr finish pass on a 3D project.  
I was vacuuming up some wayword chips and working around the moving gantry.  
At one point I rested my hand on the Z stepper motor, it was extremely warm (not hot enough to burn) is this common when doing a 3D carve?  
My other stepper motors, and router are barely warm.

Thanks  
Mike

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**Author:** ![ConvenientWoodwork](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/convenientwoodwork/32/22558_2.png) [@ConvenientWoodwork](https://forum.onefinitycnc.com/u/ConvenientWoodwork)\
**Post date:** [March 3, 2023, 1:58am UTC](https://forum.onefinitycnc.com/t/z-stepper-motor-getting-hot/19161/2 "2023-03-03T01:58:47Z")

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They can get pretty spicy on long carves.

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**Author:** ![WaywardWoodworker](https://avatars.discourse-cdn.com/v4/letter/w/e79b87/32.png) [@WaywardWoodworker](https://forum.onefinitycnc.com/u/WaywardWoodworker)\
**Post date:** [March 3, 2023, 3:02am UTC](https://forum.onefinitycnc.com/t/z-stepper-motor-getting-hot/19161/3 "2023-03-03T03:02:08Z")

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The typical temp range is up to about 180F, above that is indicative of an issue. The stepper motor is dissipating about 50 watts as it works so it’s basically a heater.

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**Author:** ![Hobbyist](https://avatars.discourse-cdn.com/v4/letter/h/5f8ce5/32.png) [@Hobbyist](https://forum.onefinitycnc.com/u/Hobbyist)\
**Post date:** [March 3, 2023, 3:29am UTC](https://forum.onefinitycnc.com/t/z-stepper-motor-getting-hot/19161/4 "2023-03-03T03:29:24Z")

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Well I have the back side to do and I have a laser thermometer, will check it out.

Thanks