# ‘Extend all’, one motor immediately starts to extend the belt

**URL:** <https://forums.maslowcnc.com/t/extend-all-one-motor-immediately-starts-to-extend-the-belt/22179>\
**Category:** Troubleshooting\
**Tags:** calibration\
**Created:** [August 29, 2024, 9:30pm UTC](https://forums.maslowcnc.com/t/extend-all-one-motor-immediately-starts-to-extend-the-belt/22179 "2024-08-29T21:30:44Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Ulmair](https://avatars.discourse-cdn.com/v4/letter/u/ba8739/32.png) [@Ulmair](https://forums.maslowcnc.com/u/Ulmair)\
**Post date:** [August 29, 2024, 9:30pm UTC](https://forums.maslowcnc.com/t/extend-all-one-motor-immediately-starts-to-extend-the-belt/22179/1 "2024-08-29T21:30:44Z")

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After I have retracted all the belt and clicked on ‘Extend all’, one motor immediately starts to extend the belt without any additional force. I can observe similar problems during calibration. I cannot get a valid calibration this way. Shortening the belt had no effect.

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**Author:** ![bar](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bar/32/10_2.png) [@bar](https://forums.maslowcnc.com/u/bar)\
**Post date:** [August 29, 2024, 9:31pm UTC](https://forums.maslowcnc.com/t/extend-all-one-motor-immediately-starts-to-extend-the-belt/22179/2 "2024-08-29T21:31:31Z")

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What do you see if you press the “Test” button under settings?

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**Author:** ![Ulmair](https://avatars.discourse-cdn.com/v4/letter/u/ba8739/32.png) [@Ulmair](https://forums.maslowcnc.com/u/Ulmair)\
**Post date:** [August 30, 2024, 2:25pm UTC](https://forums.maslowcnc.com/t/extend-all-one-motor-immediately-starts-to-extend-the-belt/22179/3 "2024-08-30T14:25:25Z")

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You are right. The magnet was at the wrong position. Now it works fine. Thank you very much for the fast response.

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**Author:** ![bar](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bar/32/10_2.png) [@bar](https://forums.maslowcnc.com/u/bar)\
**Post date:** [August 30, 2024, 5:33pm UTC](https://forums.maslowcnc.com/t/extend-all-one-motor-immediately-starts-to-extend-the-belt/22179/4 "2024-08-30T17:33:43Z")

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Excellent! Happy to help! Thanks for letting us know that fixed it 😀