# Z-Offset setting has no effect

**URL:** <https://forum.lulzbot.com/t/z-offset-setting-has-no-effect/2538>\
**Category:** Software\
**Created:** [November 30, 2015, 3:53am UTC](https://forum.lulzbot.com/t/z-offset-setting-has-no-effect/2538 "2015-11-30T03:53:27Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![TD-Linux](https://avatars.discourse-cdn.com/v4/letter/t/ce7236/32.png) [@TD-Linux](https://forum.lulzbot.com/u/TD-Linux)\
**Post date:** [November 30, 2015, 3:53am UTC](https://forum.lulzbot.com/t/z-offset-setting-has-no-effect/2538/1 "2015-11-30T03:53:27Z")

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I’m using lulzbot-cura in Fedora 23, version 17.10. My Mini has a layer width problem on the first layers which I’m trying to correct with Z-offset, however the Z-offset in the machine settings dialog seems to have no effect. Setting it to a crazy number like 25 still gives the same result when printing.

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**Author:** ![nickthetait](https://avatars.discourse-cdn.com/v4/letter/n/ac8455/32.png) [@nickthetait](https://forum.lulzbot.com/u/nickthetait)\
**Post date:** [December 7, 2015, 2:59pm UTC](https://forum.lulzbot.com/t/z-offset-setting-has-no-effect/2538/2 "2015-12-07T14:59:48Z")

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This z-offset is being ignored because the mini does this height detection/compensation automatically through the bed leveling process. Adjusting initial layer thickness should do the trick.

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**Author:** ![Sebastian](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@Sebastian](https://forum.lulzbot.com/u/Sebastian)\
**Post date:** [December 7, 2015, 3:43pm UTC](https://forum.lulzbot.com/t/z-offset-setting-has-no-effect/2538/3 "2015-12-07T15:43:43Z")

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> [@nickthetait](#):
>
> This z-offset is being ignored because the mini does this height detection/compensation automatically through the bed leveling process. Adjusting initial layer thickness should do the trick.

Realy?? That would be strange, as setting the z-height solved problems with a mini [in this thread](https://forum.lulzbot.com/t/material-squeezing-out-bottom-of-part/2550/1).  
The initial layer thickness on the other side should only change the height if the first layer, but if z-offset is off then the initial layer will also be also off by the same value… ❓

@TD-Linux: You might try to set the Z-offset to a fixed value, say 0.5mm. Then slice the object and save the gcode, then slice again but select a TAZ 5 in the machine settings. Compare the gcode files, at which Z height the print starts?

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**Author:** ![nickthetait](https://avatars.discourse-cdn.com/v4/letter/n/ac8455/32.png) [@nickthetait](https://forum.lulzbot.com/u/nickthetait)\
**Post date:** [December 8, 2015, 2:58pm UTC](https://forum.lulzbot.com/t/z-offset-setting-has-no-effect/2538/4 "2015-12-08T14:58:08Z")

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Looks like I was incorrect. 😊