# Update - fixed! Consistent underextrusion - clogged nozzle?

**URL:** <https://forum.lulzbot.com/t/update-fixed-consistent-underextrusion-clogged-nozzle/6692>\
**Category:** LulzBot Mini\
**Created:** [May 9, 2019, 12:06am UTC](https://forum.lulzbot.com/t/update-fixed-consistent-underextrusion-clogged-nozzle/6692 "2019-05-09T00:06:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![fizzlfunk](https://avatars.discourse-cdn.com/v4/letter/f/a9a28c/32.png) [@fizzlfunk](https://forum.lulzbot.com/u/fizzlfunk)\
**Post date:** [May 9, 2019, 12:06am UTC](https://forum.lulzbot.com/t/update-fixed-consistent-underextrusion-clogged-nozzle/6692/1 "2019-05-09T00:06:29Z")

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Heyo, I’ve had my Lulzbot Mini for a few years now, though it’s been offline for the past year. I’ve finally been able to get back to printing and I fired it up today, expecting to have to do some re-calibration/configuration/etc.

I’ve printed a bunch of calibration cubes now on a few different spools of filament (all PLA) but I’m running into a consistent issue that looks like underextrusion. A picture says a thousand words:

![](https://next.meow.team/apps/files_sharing/publicpreview/DcwLera4QBBBEXi?x=1920&y=587&a=true&file=IMG_20190508_164631.jpg&scalingup=0)

![](https://next.meow.team/apps/files_sharing/publicpreview/gA7tY9bWw3QHj5c?x=1920&y=587&a=true&file=IMG_20190508_164600.jpg&scalingup=0)

Both cubes were printed at 200C, 3.00mm filament, 0.38mm level height (rough); the left cube at 100% extrusion rate, the right, 105%. The right one is slightly better, but both are pretty gappy, making them quite weak structurally.

Any ideas what direction I should go in here to improve print quality? Thanks!

[Update] Fixed it – esteps were waaaaay off. Recalibrated and good to go.

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**Author:** ![kcchen\_00](https://avatars.discourse-cdn.com/v4/letter/k/9dc877/32.png) [@kcchen\_00](https://forum.lulzbot.com/u/kcchen_00)\
**Post date:** [May 10, 2019, 1:26am UTC](https://forum.lulzbot.com/t/update-fixed-consistent-underextrusion-clogged-nozzle/6692/2 "2019-05-10T01:26:30Z")

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Tighten the idler? Maybe its having a hard time pushing the filament through the extruder.

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**Author:** ![fizzlfunk](https://avatars.discourse-cdn.com/v4/letter/f/a9a28c/32.png) [@fizzlfunk](https://forum.lulzbot.com/u/fizzlfunk)\
**Post date:** [May 10, 2019, 8:40pm UTC](https://forum.lulzbot.com/t/update-fixed-consistent-underextrusion-clogged-nozzle/6692/3 "2019-05-10T20:40:57Z")

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I dug into all levels of settings and eventually decided to check the esteps… which were _way_ off and suddenly obviously the cause of this issue. Recalibrated the esteps and I’m back in business.