# mini - y axis endstop and thwap thwap thwap

**URL:** <https://forum.lulzbot.com/t/mini-y-axis-endstop-and-thwap-thwap-thwap/2261>\
**Category:** LulzBot Mini\
**Created:** [September 23, 2015, 4:41pm UTC](https://forum.lulzbot.com/t/mini-y-axis-endstop-and-thwap-thwap-thwap/2261 "2015-09-23T16:41:47Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![idcrook](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/idcrook/32/9287_2.png) [@idcrook](https://forum.lulzbot.com/u/idcrook)\
**Post date:** [September 23, 2015, 4:41pm UTC](https://forum.lulzbot.com/t/mini-y-axis-endstop-and-thwap-thwap-thwap/2261/1 "2015-09-23T16:41:47Z")

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I’ve been using my mini now for a few months and I really enjoy.

Today while doing the preprint gcode it started going thwap thwap thwap. This was happening at the y-axis seek, where the bed was furthest to the rear (head at the front). It would do this for a while making quite a racket, then would proceed. I canceled the print and tried again a few times, and it would do the same each time.  
I let it print after four or five times and the print seems normal.

I didn’t change the gcode or anything else related to the settings.

anything I should do to adjust or fix this problem? I searched the forums and didn’t find another thread with this problem.

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