Uneven extrusion after troubleshooting

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doveilgatto

(@doveilgatto)

New Member

Uneven extrusion after troubleshooting

Hi, I'm trying to print on a lab MK3 with multiple users, and it seems to have gone from needing a little fine-tuning in the z-axis to not printing properly at all. I've been through the self-testing, mesh bed leveling, and calibrate xyz. I've also cleaned the nozzle with acetone and cleaned the print bed with IPA and acetone. I'm just at a loss at this point. The print isn't adhering properly and the filament flow doesn't appear to be even. These prints used PETG, but I was seeing similar behavior from PLA. If anyone has any ideas, I would really appreciate the help!

Posted : 05/07/2022 7:51 pm

RedDog

(@reddog-2)

Active Member

RE: Uneven extrusion after troubleshooting

This does not appear to be close enough to the bed. Your Z is too high. It should be "squished" not round.

Posted : 05/07/2022 7:57 pm

doveilgatto

(@doveilgatto)

New Member

Topic starter answered:

RE: Uneven extrusion after troubleshooting

Thanks for your reply. It feels like I'm going through the complete Z adjust range on this. Is there anything else it could be or a way tot find out what the typical z should be on specific filaments?

Posted : 06/07/2022 6:37 pm

Diem

(@diem)

Illustrious Member

RE:

Check the Lab logbook - who used the printer last? Ask them what settings they changed - might they have knocked the PINDA out of position?

The first layer Z calibration is way too high, it needs more squish ... but your technician should be on top of this..?

There is no fixed Z value, it changes slowly as the nozzle wears in use.

Cheerio,

Posted : 07/07/2022 1:02 am

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