First Layer Test for Prusa Mk4, MK4S Testprint calibration (or others)

Prints a single layer over the whole build plate of a Prusa Mk4 or MK4S to test if it is as perfect as advertised.

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updated April 2, 2025

Makes

Makes only

Printed on my new MK4S kit with smooth pei sheet, Prusament gravity grey. Only one small defect where heatbed was not cleaned by IPA properly.

Are split in 2, very good

Good print;
Unfortunately the print has ripped of the the white color from the edge of the plate. (edited)

Thanks

Nice.

@Martin_ Looks good, thanks for posting a make :-)

Had a little ripple on the back left so going to check on that

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@konfuzed_203678 did you manage to fix your issues with those wavy lines?

@simao_1976344 Oh yes I did. I reassembled the Y axis after checking belt tension alone, and it cleared up, so something was just a bit off I guess

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