Nozzle dragging on the printed parts.
Hi, i have a small problem with my printer. It started 2 firmware updates ago. When i print large parts i hear the nozzle dragging on the printed parts, but only when printing the infill. The nozzle touch the infill where the lines cross. I havent changed anything on my printer, only the firmware. Before going to change some settings in prusaslicer i thought i should ask here first if others had this problem and how they fix it
Thank You.
RE: Nozzle dragging on the printed parts.
Is it really a problem? Are your prints failing? Are the surfaces showing unpleasant artifacts?
Cheers
-Bob
Prusa I3 Mk2 kit upgraded to Mk2.5s, Ender3 with many mods, Prusa Mini kit with Bondtech heat break, Prusa I3 Mk3s+ kit
RE: Nozzle dragging on the printed parts.
What kind of infill are you using? For example, the Grid infill that Prusa for reasons unknown uses as default has crossing lines within a layer, which can lead to pile-ups at the intersections. Switch to a non-crossing infill such as gyroid or adaptive cubic. Also check out these knowledgebase articles:
https://help.prusa3d.com/en/article/inifill-patterns_177130
https://help.prusa3d.com/en/article/infill_42
Great discussion of strengths and weaknesses of each infill type and impact of infill vs perimeters.
I found gyroid and adaptive cubic to be the best all-around infills.
Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...
RE: Nozzle dragging on the printed parts.
@Bob It is not really a problem, my prints are great but when the printer do the infill, the tip of the nozzle drag too much were the lines of the infill cross and is making noise. If i print a large piece when it gets to the infill part my printer gets too noisy and i can see a small dent were the lines cross after the nozzle passes. I didnt had this problems before updateing my printer. I use the same settings since i bought the printer and i never changed the printing speed not form the apps and not from the knob, but now i have to lower the speed of the printing from the knob when it gets to the infill part to lower the noise and vibrations but the printing time gets bigger.
@fuchsr I always use the default grid infill, but even if i change the infill type, i still have that problem with the grid infill.
RE: Nozzle dragging on the printed parts.
To me a simple choice is choose gyroid infill, there is no crossover.
Regards
-Bob
Prusa I3 Mk2 kit upgraded to Mk2.5s, Ender3 with many mods, Prusa Mini kit with Bondtech heat break, Prusa I3 Mk3s+ kit