# Dual Extruder Calibration Taz Pro

**URL:** <https://forum.lulzbot.com/t/dual-extruder-calibration-taz-pro/23512>\
**Category:** General\
**Created:** [July 15, 2021, 6:12pm UTC](https://forum.lulzbot.com/t/dual-extruder-calibration-taz-pro/23512 "2021-07-15T18:12:49Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![gary2506](https://avatars.discourse-cdn.com/v4/letter/g/d9b06d/32.png) [@gary2506](https://forum.lulzbot.com/u/gary2506)\
**Post date:** [July 15, 2021, 8:44pm UTC](https://forum.lulzbot.com/t/dual-extruder-calibration-taz-pro/23512/2 "2021-07-15T20:44:35Z")

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I think I found the answer in this thread thanks to TheVirtualTim

> [@Taz Pro Nozzle Calibration Variation](https://forum.lulzbot.com/t/taz-pro-nozzle-calibration-variation/21921):
>
> I have been having some z-offset problems with my Taz Pro. When printing, the nozzle is lower than I would expect it to be and it is hitting the existing print as it goes. On multiple occasions it has actually knocked prints off the bed… Lulzbot support has suggested manually adjusting the z-offset. What is the difference between the ‘Nozzle Offset’ z value and the ‘z offset’ value? When I have done the ‘Automatic Calibration’, I end up with different ‘Nozzle Offset’ z values every single time…

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