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All holes are undersized with my MK3.9
I have been struggling with undersized holes in all prints. I designed a simple rectangular test piece with holes ranging from 10mm to 2.5mm. The 10 and 5 mm holes are 0.25mm undersized and the 2.5mm holes are 0.4mm undersized. The outline dimensions of the body are okay. I am using the latest firmware and prusaslicer version. I have tried PLA and PETG and found no difference. I have tried the 0.1mm FAST DETAIL and 0.15mm STRUCTURAL print settings and saw no difference. I have not messed with any of the print settings. I am using the original nozzle that came with the MK3.9 upgrade kit. What should I try next?
Respondido : 23/03/2026 2:17 pm