# Can’t make this stepper motors work

**URL:** <https://forum.arduino.cc/t/can-t-make-this-stepper-motors-work/1344125>\
**Category:** Motors, Mechanics, Power and CNC\
**Created:** [January 18, 2025, 2:31pm UTC](https://forum.arduino.cc/t/can-t-make-this-stepper-motors-work/1344125 "2025-01-18T14:31:00Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![etbuosi](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/etbuosi/32/1102227_2.png) [@etbuosi](https://forum.arduino.cc/u/etbuosi)\
**Post date:** [January 18, 2025, 2:31pm UTC](https://forum.arduino.cc/t/can-t-make-this-stepper-motors-work/1344125/1 "2025-01-18T14:31:01Z")

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![IMG_1230](https://europe1.discourse-cdn.com/arduino/original/4X/e/1/1/e11f28df7dbf2ea225e798a0413d048a6c8973e3.jpeg)  
I am using 3 nema 17, a power supply of 24V (lrs-350-24), 3 drv8825 with a cnc shield attached to a arduino uno, all the drv are set to a vref of 0.75. I already tried multiple code and multiple solutions but nothing worked, can someone please help me?

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**Author:** ![Railroader](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/railroader/32/274550_2.png) [@Railroader](https://forum.arduino.cc/u/Railroader)\
**Post date:** [January 18, 2025, 4:08pm UTC](https://forum.arduino.cc/t/can-t-make-this-stepper-motors-work/1344125/2 "2025-01-18T16:08:34Z")

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First aids is this link: [How to get the best out of this forum - Development Tools / IDE 1.x - Arduino Forum](https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/679966?_gl=1*zedl1n*_up*MQ..*_ga*NDI5NTcxMzcyLjE3MzY2OTQ0MDk.*_ga_NEXN8H46L5*MTczNjY5NDQwOS4xLjAuMTczNjY5NDQwOS4wLjAuMTM5NTU3OTQ0MQ..)

It tells What You need to post, and how.

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**Author:** ![gilshultz](https://avatars.discourse-cdn.com/v4/letter/g/67e7ee/32.png) [@gilshultz](https://forum.arduino.cc/u/gilshultz)\
**Post date:** [January 18, 2025, 11:09pm UTC](https://forum.arduino.cc/t/can-t-make-this-stepper-motors-work/1344125/3 "2025-01-18T23:09:18Z")

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I expect you will get a bang, look at your mains connection to the power supply.

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**Author:** ![TomGeorge](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/tomgeorge/32/215261_2.png) [@TomGeorge](https://forum.arduino.cc/u/TomGeorge)\
**Post date:** [January 18, 2025, 11:16pm UTC](https://forum.arduino.cc/t/can-t-make-this-stepper-motors-work/1344125/4 "2025-01-18T23:16:43Z")

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Hi, @etbuosi

> [@gilshultz](#):
>
> I expect you will get a bang, look at your mains connection to the power suppl

 ![image](https://europe1.discourse-cdn.com/arduino/original/4X/a/d/a/ada09e9320feb7588a93946232f34b79691cfb94.jpeg)

**PLEASE FIX THAT CONNECTION!!!!!**  
**AND CONNECT AN EARTH!!!!!**

Can you please post your code?

Can you please post a copy of your circuit, a picture of a hand drawn circuit in jpg, png?  
Hand drawn and photographed is perfectly acceptable.  
Please include ALL hardware, power supplies, component names and pin labels.

Can you please post a link to data/specs of your stepper motor.

Are you using the drv8825 library?  
If so have you tried the Example DRV8825\_test?

Tom.... 😃 👍 ☕ 🇦🇺

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**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [July 17, 2025, 11:17pm UTC](https://forum.arduino.cc/t/can-t-make-this-stepper-motors-work/1344125/5 "2025-07-17T23:17:00Z")

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