# Nozzle hitting infill

**URL:** <https://forum.lulzbot.com/t/nozzle-hitting-infill/908>\
**Category:** Hardware\
**Created:** [October 20, 2014, 4:09am UTC](https://forum.lulzbot.com/t/nozzle-hitting-infill/908 "2014-10-20T04:09:39Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![gghouck](https://avatars.discourse-cdn.com/v4/letter/g/a88e4f/32.png) [@gghouck](https://forum.lulzbot.com/u/gghouck)\
**Post date:** [October 20, 2014, 4:09am UTC](https://forum.lulzbot.com/t/nozzle-hitting-infill/908/1 "2014-10-20T04:09:39Z")

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When printing, especially with Slic3rs default infill pattern, my nozzle hits the infill when printing it and when simply crossing it to move to another area. It seems during infill some amount of material ends up above the level it was printed at. I’m also having a bit of a problem getting the infill to bond. Honeycomb does good.

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**Author:** ![edlink](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/edlink/32/29_2.png) [@edlink](https://forum.lulzbot.com/u/edlink)\
**Post date:** [October 20, 2014, 1:12pm UTC](https://forum.lulzbot.com/t/nozzle-hitting-infill/908/2 "2014-10-20T13:12:23Z")

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Are you using one of these profiles provided by Lulzbot?

[https://www.lulzbot.com/support/taz-slic3r-profiles](https://www.lulzbot.com/support/taz-slic3r-profiles)

If so - which one?

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**Author:** ![gghouck](https://avatars.discourse-cdn.com/v4/letter/g/a88e4f/32.png) [@gghouck](https://forum.lulzbot.com/u/gghouck)\
**Post date:** [October 20, 2014, 5:11pm UTC](https://forum.lulzbot.com/t/nozzle-hitting-infill/908/3 "2014-10-20T17:11:00Z")

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Yes, the .35 ABS fine and medium with support off

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**Author:** ![gghouck](https://avatars.discourse-cdn.com/v4/letter/g/a88e4f/32.png) [@gghouck](https://forum.lulzbot.com/u/gghouck)\
**Post date:** [October 27, 2014, 11:57pm UTC](https://forum.lulzbot.com/t/nozzle-hitting-infill/908/4 "2014-10-27T23:57:18Z")

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Any ideas?

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**Author:** ![nopick](https://avatars.discourse-cdn.com/v4/letter/n/7bcc69/32.png) [@nopick](https://forum.lulzbot.com/u/nopick)\
**Post date:** [October 28, 2014, 12:28am UTC](https://forum.lulzbot.com/t/nozzle-hitting-infill/908/5 "2014-10-28T00:28:18Z")

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Pictures of the problem would help.

I have had this problem in the past when I was over extruding. Have you went through the extruder calibration process? [https://ohai-kit.alephobjects.com/project/extruder\_calibration/](https://ohai-kit.alephobjects.com/project/extruder_calibration/)

Be sure to measure the filament diameter and enter that value in your slicer software. Also, heat up the extruder and bed to printing temps and set the nozzle to bed gap to ~0.005 inches. This has given me the best results, FWIW!

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**Author:** ![ogrethetoymaker](https://avatars.discourse-cdn.com/v4/letter/o/ac91a4/32.png) [@ogrethetoymaker](https://forum.lulzbot.com/u/ogrethetoymaker)\
**Post date:** [October 28, 2014, 4:07pm UTC](https://forum.lulzbot.com/t/nozzle-hitting-infill/908/6 "2014-10-28T16:07:16Z")

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Turn up speed for infill incrementally till it doesn’t occur. This is likely caused by temps vs speed if just infill.  
You could also adjust your extrusion rate but that would affect all aspects of the print not just infill.

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**Author:** ![gghouck](https://avatars.discourse-cdn.com/v4/letter/g/a88e4f/32.png) [@gghouck](https://forum.lulzbot.com/u/gghouck)\
**Post date:** [November 4, 2014, 7:02am UTC](https://forum.lulzbot.com/t/nozzle-hitting-infill/908/7 "2014-11-04T07:02:04Z")

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![](http://home.gci.net/~gghouck/DSC01551.JPG)

This is a similar bit of the problem. ABS at 230 and 85 bed