# U1 - Individual toolhead extrusion flow calibration

**URL:** <https://forum.snapmaker.com/t/u1-individual-toolhead-extrusion-flow-calibration/42211>\
**Category:** U1 Toolchanger\
**Tags:** Firmware\
**Created:** [June 10, 2026, 3:02pm UTC](https://forum.snapmaker.com/t/u1-individual-toolhead-extrusion-flow-calibration/42211 "2026-06-10T15:02:06Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![xchrisd](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/xchrisd/32/1503_2.png) [@xchrisd](https://forum.snapmaker.com/u/xchrisd)\
**Post date:** [June 10, 2026, 6:51pm UTC](https://forum.snapmaker.com/t/u1-individual-toolhead-extrusion-flow-calibration/42211/2 "2026-06-10T18:51:08Z")

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I think this is on the machine display possible.  
Have a look here:

> [@Flow Calibration for one new spool](https://forum.snapmaker.com/t/flow-calibration-for-one-new-spool/40441/8):
>
> You can now run the calibration for just one nozzle. On print start, activate flow calibration and click “advanced” on the right side to select just the required nozzle.

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_[View the full topic](https://forum.snapmaker.com/t/u1-individual-toolhead-extrusion-flow-calibration/42211)._