# Extruder Calibration a must

**URL:** <https://forum.snapmaker.com/t/extruder-calibration-a-must/7724>\
**Category:** Snapmaker 2.0 (3-in-1)\
**Created:** [July 16, 2020, 7:51pm UTC](https://forum.snapmaker.com/t/extruder-calibration-a-must/7724 "2020-07-16T19:51:11Z")\
**Posts on this page:** 1\
**Showing post:** 22

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**Author:** ![Atom](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/atom/32/5608_2.png) [@Atom](https://forum.snapmaker.com/u/Atom)\
**Post date:** [July 30, 2020, 2:45am UTC](https://forum.snapmaker.com/t/extruder-calibration-a-must/7724/22 "2020-07-30T02:45:33Z")

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@Skulldragon33 make sure to set the machine to relative extrusion (M83 i think, someone please confirm this) if you are retesting in the same session. i forgot to do this and got a messed up result (i think mine was 10mm further off then the first test)

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