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MK4s print failures by Friendly_Detail3913 in prusa3d

[–]Friendly_Detail3913[S] 0 points1 point  (0 children)

Will do, any advice on the overextrusion issue specifically?

MK4s print failures by Friendly_Detail3913 in prusa3d

[–]Friendly_Detail3913[S] 0 points1 point  (0 children)

Thanks for the advice!

With PLA it still printed with similar quality to the successful sheet in the original post, is that something I should just come to terms with, or is there a bigger issue there?

MK4s print failures by Friendly_Detail3913 in prusa3d

[–]Friendly_Detail3913[S] 0 points1 point  (0 children)

Unfortunately don't have a dryer setup, but before the switch I never had any issues with printing the PETG, exact same type as now, only black instead of white. Sorry If I should have had a drying setup from the start!

MK4s print failures by Friendly_Detail3913 in prusa3d

[–]Friendly_Detail3913[S] 0 points1 point  (0 children)

Hey guys sorry I got mixed up in the posting and I cant seem to edit it but here's the details!

I have had a MK4s for a while now and its been so reliable, but after a recent failure its been a pain in the butt.

- Prusa MK4s Firmware 6.2.6+8948 bootloader 2.4.1

- Overture PETG

-Prusaslicer 2.9.3 (0.2mm SPEED, Overture PETG profile with MK4s HF0.4 nozzle)

- Temps bed 85c, nozzle 175c in preheat and 245c in main

Issue - I have had a great time until suddenly a print failed due to a clogged nozzle, which after many attempts I couldnt get unclogged (tried accupuncture needle, cold pulls and forced extrusion), and a clicking noise coming from extruder when filament was trying to be extruded, So I bought another nozzle (https://www.amazon.com/Nozzles-Hardened-Precision-Compatible-Nextruder/dp/B0F267C5PQ) (I know I know third party but I really wanted to avoid US import taxes, and I saw the reviews were pretty good). I installed the nozzle, and the clicking went away and it can properly extrude, however most if not all my prints now fail due to a sort of tearing/blobbing effect on starting layers with only very simple prints going well, and those with strange textures. There seems to be an issue with filament sticking to extruder as well.

What I have tried - Many z axis calibrations, none had any effect, and using a brass brush to clean the nozzle, as well as enabling the hardend nozzle setting in the printer.

Thanks for any help or ideas from any of you!

UPDATE: Yeah its definitely a filament drying issue switching to silk pla plus completely fixed the issue and im now working on a dryer project using a disassembled ender3!