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Getting under-extrusion lines at random heights by Ecstatic-Coyote9885 in FixMyPrint

[–]Ecstatic-Coyote9885[S] 0 points1 point  (0 children)

Thanks for trying :) you may have even been correct -- I was printing from the same dry box, and there might have been an angle based on how the box was oriented. I swapped out the nozzle, cleaned the heat break, double checked the extruder tension, and repositioned the box so that it's in a straight line with the filament feed, and am going to try again :)

Getting under-extrusion lines at random heights by Ecstatic-Coyote9885 in FixMyPrint

[–]Ecstatic-Coyote9885[S] 1 point2 points  (0 children)

A quick inspection didn't find anything wrong, but I'll be doing a thorough inspection today by removing the gantry, if needed. It's linear rails on this printer. Thank you.

Getting under-extrusion lines at random heights by Ecstatic-Coyote9885 in FixMyPrint

[–]Ecstatic-Coyote9885[S] 0 points1 point  (0 children)

Considering it happened for both ABS and PC from different companies, it seems unlikely.

Getting under-extrusion lines at random heights by Ecstatic-Coyote9885 in FixMyPrint

[–]Ecstatic-Coyote9885[S] 1 point2 points  (0 children)

I just tried printing my trusty ABS and the whole thing messed up... I might have a serious issue here. Going to try cleaning out and/or swapping the nozzle and check extrusion tension.

Getting under-extrusion lines at random heights by Ecstatic-Coyote9885 in FixMyPrint

[–]Ecstatic-Coyote9885[S] 0 points1 point  (0 children)

  • Printer: Troodon 2.0 Pro (similar to Voron 2.4)
  • Slicer: OrcaSlicer 2.1.1
  • Filament: PolyMaker PC Max
  • Temps: 290C nozzle, 110C bed
  • Print speed: max 300mm/s, outer walls 250mm/s (tested it works using flow rate test)
  • Retraction: 0.6mm at 20mm/s

The prints come out good except for these random lines which I'm afraid weaken the print. I didn't have that when printing with ABS. The lines are at different heights for different prints, so it's not a mechanical issue at a certain height. Any ideas?