# Need replacement part/Won;t connect to cpu

**URL:** <https://forum.lulzbot.com/t/need-replacement-part-won-t-connect-to-cpu/27846>\
**Category:** LulzBot Mini\
**Created:** [January 28, 2026, 8:24pm UTC](https://forum.lulzbot.com/t/need-replacement-part-won-t-connect-to-cpu/27846 "2026-01-28T20:24:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![AngryKloud](https://avatars.discourse-cdn.com/v4/letter/a/71e660/32.png) [@AngryKloud](https://forum.lulzbot.com/u/AngryKloud)\
**Post date:** [January 28, 2026, 8:24pm UTC](https://forum.lulzbot.com/t/need-replacement-part-won-t-connect-to-cpu/27846/1 "2026-01-28T20:24:24Z")

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I need a new gear head. I am very new to 3D printing. Will the 108 Toothed Geared Hobb fit my Mini 2?

Also it doesn’t seem to matter what cord I use or where I plug it in, the printer never wants to connect to my computer. Does anyone know how to fix that? I am on a laptop that should be more than capable of running it, but I could be wrong