4 Attachment(s)
FF Finder - Print quality suddenly worse after failed print
A few weeks ago I was doing a large print wich failed halfway trough as the printer stoped extruding. The print had bad surface finish and a lot of stringing, problems I have not experienced before.
After cleaning the nozzle it was extruding again and I could print, but the surface quality on vertical surfaces was not as good as before. I tried cleaning the nozzle again, but no change. I concluded the nozzle was probably worn out or gunked up with something I couldn't get out, so I replaced it with a new Prima Creator nozzle. This had no detectable effect on the print quality.
I have also cleaned the gear and idler in the extruder and switched to a new spool of filament. Still no detectable effect on the print quality. (I also cleaned and lubricated bearing all rods and Z-axis lead screw, not surprisingly, no effect.)
One of the test prints was printed from the printers memory before and after the problem started, so I can rule out slicer settings.
Any ideas what could be causing this? Maybe the PTFE tube or some other part of the extruder?
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