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Top layer coming out bumpy while getting constant "filament clogged" message
Hello,
Recently purchased a MK4S second-hand with the a Ruby .4mm nozzle.
Trying to print a basic gridfinity bin (4x2) but every time it gets to the top layer of the bottom of the bin, I will get a constant "filment clogged" message and I noticed that the layers are all messed up as seen below.
Trying to figure out what it may be.
Printing with the stock Overture PLA profile, stock.2mm Structural settings as well as stock "Original Prusa MK4S 0.4 nozzle" setting.
15% infill.
Already took apart the nextruder and couldn't find anything wrong with the gears, and it can print a benchy fine. Just seems to get hung up with these larger flat surfaces?
Posted : 09/06/2026 4:38 pm