Common Print Quality Problems & Fixes

Use the Print Defect Visual Glossary to name the defect first.

Under-extrusion mid-print with PLA

Almost always heat creep from the warm chamber. Remove the lid or open the door for PLA, and make sure the hotend cooling fan spins.

Rough or matte walls at full speed

The K1C can move faster than many filaments can melt. Lower the max volumetric speed in the filament profile (start around 15–20 mm³/s for standard PLA) instead of lowering every speed setting.

Warping with ABS/ASA

Keep the door and lid closed, let the chamber warm up with the bed hot for 10 minutes before printing, and add a brim. More in Bed Adhesion Techniques.

Ringing or ghosting

Re-run input shaping from the touchscreen after moving the printer or changing the bed weight.