# Minor assembly mistake. Did not put a bearing under the drive gear

**URL:** <https://forums.maslowcnc.com/t/minor-assembly-mistake-did-not-put-a-bearing-under-the-drive-gear/26129>\
**Category:** Troubleshooting\
**Tags:** assembly\
**Created:** [August 20, 2026, 12:21am UTC](https://forums.maslowcnc.com/t/minor-assembly-mistake-did-not-put-a-bearing-under-the-drive-gear/26129 "2026-08-20T00:21:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![wouldchuck](https://avatars.discourse-cdn.com/v4/letter/w/58956e/32.png) [@wouldchuck](https://forums.maslowcnc.com/u/wouldchuck)\
**Post date:** [August 20, 2026, 12:21am UTC](https://forums.maslowcnc.com/t/minor-assembly-mistake-did-not-put-a-bearing-under-the-drive-gear/26129/1 "2026-08-20T00:21:50Z")

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Maybe this will help someone. My maslow 4 has been mostly working well but I saw a motor kind of wiggling and dancing relative to its arm while it was working. I just took it all apart and I had missed putting a bearing under the drive gear when originally putting it together. I don’t have a video but if you notice motor moving this might be it.

 ![PXL_20260722_004812676](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/3X/2/0/201148dc4ea22ac2d18406bc84fbecbe3f1e06df.jpeg)

 ![PXL_20260819_235513482](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/3X/d/a/da9ab3bc3f7f70f7a3d1fd4f8697c5ced5dc78f5.jpeg)