Most likely causestemperature, retraction, travel speed, and filament dryness.
Printer focusVoron and Rat Rig machines are advanced Klipper builds where motion, pressure advance, input shaping, and profile tuning drive quality.
Slicer checkReview Orca Slicer, Cura, Bambu Studio, PrusaSlicer, or the slicer profile used for this printer before changing mechanical parts.