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UM3 glob dragging

matrex91

By matrex91
in UltiMaker 3D printers

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matrex91

matrex91 0

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Posted · UM3 glob dragging

Hey guys,

I'm printing with AA 0.4 and BB 0.4 (TPU 95A and PVA respectively) on the UM3.

The first couple of weeks I used the printer things were looking really good. No issues besides some humidity/moisture stuff that I'm working on remedying.

Now when I print with both materials I'm getting a lot of extra extrusion on whichever nozzle is supposed to be inactive. Creates a glob of material that then gets dragged around the print bed and generally gets stuck on my part(s) ruining the print in one fell swoop. I've tried messing with some retraction settings, but that didn't seem to help.

Anyone else experiencing this? Any ideas on fixing it?

Thanks for the help!

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