# Bed mesh makes first layer worse

**URL:** <https://klipper.discourse.group/t/bed-mesh-makes-first-layer-worse/6786>\
**Category:** General Discussion\
**Created:** [February 20, 2023, 11:40pm UTC](https://klipper.discourse.group/t/bed-mesh-makes-first-layer-worse/6786 "2023-02-20T23:40:42Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![Sineos](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/sineos/32/18_2.png) [@Sineos](https://klipper.discourse.group/u/Sineos)\
**Post date:** [February 21, 2023, 7:45pm UTC](https://klipper.discourse.group/t/bed-mesh-makes-first-layer-worse/6786/5 "2023-02-21T19:45:57Z")

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This is a know and unfortunately unsolved topic: See [Experimental mesh leveling changes](https://klipper.discourse.group/t/experimental-mesh-leveling-changes/3401)

To sum it up:

- Known to exist
- So far no systematic error in the compensation logic has been identified
- There are user reports who have successfully solved their issue. In all cases it has been mechanical issues (twisted / bent extrusion profiles) that lead to a non linear deviation between probed point and nozzle coordinates

In addition there is a first attempt to solve such issues via software: [[Testers needed] X twist compensation](https://klipper.discourse.group/t/testers-needed-x-twist-compensation/6567)

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