# 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:** 132

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**Author:** ![brent113](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/brent113/32/11114_2.png) [@brent113](https://forum.snapmaker.com/u/brent113)\
**Post date:** [January 26, 2021, 8:31pm UTC](https://forum.snapmaker.com/t/extruder-calibration-a-must/7724/132 "2021-01-26T20:31:34Z")

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> [@AutoCalibration Not Working](https://forum.snapmaker.com/t/autocalibration-not-working/10763/23):
>
> First, my understanding is the light is always on… it does not indicate a trigger… Second make sure the probe is over the bed… some people have had issues with gouging because the sensor is not actually over the bed even though the nozel is… Third, and mostly as a side note… if you have an OTG cable you can download 3dfox and connect the printer to your phone for console commands… that way your printer does not need to be near a pc.

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