3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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Prusa Mk4 or Mk4s first layer issues (lemmy.sdf.org)

submitted 2 weeks ago* (last edited 2 weeks ago) by [email protected] to c/[email protected]

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Is anyone else having HORRIBLE problems with their Prusa Mk4 or Mk4S first layer quality...

My mk4s developed a problem that Prusa spent 3 months troubleshooting with me where the first layer is being laid down too close, and so filament blobs, then prints fail.

Eventually, they advance replaced my whole printer, and the new one had the exact same problem out of the box..

I managed to find a bug that was raised on github for this exact issue, with 22 other people registering "mee too" for the issue..

I'm just looking for some feedback from the wider community to see if any others have hit this problem?

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[–] [email protected] 11 points 2 weeks ago

I had a problem where my Prusa had first layer problems exactly like this but only in a specific area. Two things fixed it. First, increasing the mesh leveling to use the maximum amount of points instead of just 9 or whatever the default is.

The second was discovering the tiny piece of filament that had fallen onto the magnetic heatbet, below the sheet. It dripped from the extruder at some point, and it was black so it was basically invisible. I only found it when I thought to check if anything was making the bed uneven. I didn't even have to relevel the bed.