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PETG printing striping?  

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MikiCab
(@mikicab)
Reputable Member
PETG printing striping?

MK3S with MMu2s. My printing just started getting this weird striping for PETG only. PLA prints without this issue. I have tried 3 different rolls of filament and put two in a dryer.  I am using Prusa PETG presets which have always worked in the past.  I have put filament in a dryer for 6 hours with no improvement and all of my filament is stored in tubs with descant which I dry on a regular basis. 

The only thing I have done recently was update the slicer to 2.4.0 but I tried an older print and it had the same issue.

Any help is appreciated

Best Answer by MikiCab:

Fixed. The nozzle was partially clogged.  I have ran cleaning filament and a needle through it but did not matter fix it.  Funny thing is PLA ran.

This was the Microswiss nickel coated .4mm nozzle so I am surprised.  I put back the original Prusa E3D nozzle and it fixed the problem.

Posted : 06/01/2022 2:47 pm
MikiCab
(@mikicab)
Reputable Member
Topic starter answered:
RE: PETG printing striping?

Here is another picture

Posted : 06/01/2022 3:09 pm
fuchsr
(@fuchsr)
Noble Member
RE: PETG printing striping?

First layer? Redo your live Z calibration. Live Z may be fine for PLA but not for PETG

Posted : 06/01/2022 4:37 pm
MikiCab
(@mikicab)
Reputable Member
Topic starter answered:
RE: PETG printing striping?

Already did first layer with PETG.  Still has the same issue.  First layer looks great.

Posted by: @fuchsr

First layer? Redo your live Z calibration. Live Z may be fine for PLA but not for PETG

 

Posted : 06/01/2022 11:36 pm
MikiCab
(@mikicab)
Reputable Member
Topic starter answered:
RE: PETG printing striping?

Fixed. The nozzle was partially clogged.  I have ran cleaning filament and a needle through it but did not matter fix it.  Funny thing is PLA ran.

This was the Microswiss nickel coated .4mm nozzle so I am surprised.  I put back the original Prusa E3D nozzle and it fixed the problem.

Posted : 08/01/2022 12:17 am
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