First layer rippling/inconsistent Z height - How do I print this? (Printing help)

RE: First layer rippling/inconsistent Z height

PMM — Thu, 28 Mar 2024 13:49:25 +0000

My MK4 does the exact same thing, seems like the auto calibration of the first layer is slightly off. I fixed it by going into PrusaSlicer, into Printer Settings and changed the Z offset by 0.05.

RE: First layer rippling/inconsistent Z height

Nelson — Wed, 27 Mar 2024 16:06:22 +0000

I'm having a very similar issue with the first layer on my new Mk4. I have re-run all tests/calibrations and they all pass. I have washed my smooth sheet in dish soap and water and also used alcohol, yet I still get these grainy and ripple marks on parts of the first layer instead of it being entirely smooth. I'm printing Hatchbox PLA with first layer temp at 230C and other at 220C. Bed temp is 60C. Any thoughts or suggestions would be greatly appreciated. Thank you.

c9c5c0c2-firstlayer_rippling.jpg

RE: First layer rippling/inconsistent Z height

Joe Fara — Fri, 22 Dec 2023 04:26:43 +0000

What was the fix? I'm seemingly having the same issue.

RE: First layer rippling/inconsistent Z height

Yasar — Wed, 04 Oct 2023 05:26:15 +0000

...and what came of it?

RE:

EM — Thu, 28 Sep 2023 11:40:42 +0000

Noticed some play in the right Z axis. Could this be my problem?

Diem — Mon, 25 Sep 2023 00:02:59 +0000

OK, but I would first try a drastic print sheet clean. Rub neat washing up detergent (Dawn/Fairy) into the print sheet concentrating on the areas where adhesion is poor, wait five minutes and then rinse clean with very *HOT* water. Handle by the edges only.

Cheerio,

RE: First layer rippling/inconsistent Z height

EM — Sun, 24 Sep 2023 17:11:55 +0000

Did all the steps mentioned in the guide. Had some good layers, but now it's back. Very rough surface on the right side of the bed. Looks like the filament gets squeezed out because the nozzle is too close on the right side of the bed. I consider now to contact Prusa directly.

Diem — Sun, 17 Sep 2023 01:36:45 +0000

Now go to step 4 on: https://help.prusa3d.com/guide/8-preflight-check_464309#464453

and perform the self tests from there onward.

Cheerio,

RE: First layer rippling/inconsistent Z height

EM — Sat, 16 Sep 2023 16:22:30 +0000

I cleaned my print bed and did some extra tests. But the phenomenon is still the same. The nozzle is to close to the print bed on the right side. When I printed the skirt the filament came barely out of the nozzle in the front right corner of the print bed.

RE: First layer rippling/inconsistent Z height

Yasar — Sat, 16 Sep 2023 13:07:00 +0000

grab a guide gauge... do a calibrate z axis... and measure left and right then you'll find the error... the right side never went up 100%... and then you have such an error on the right deeper than the left... it's now behind me after 4 hours of repairs... I'll take pictures later :)