Prusa XL Noise Due to Frame Resonance

To diagnose this cause, identify if the noise occurs only at specific printer speeds, typically between 90–110 mm/s. Test this by reducing or increasing the slicer speed settings for infill or perimeters by 5–10 mm/s to see if the vibration ceases. Confirm the printer's physical environment by checking if the surface it rests on is stable; a wobbly table or lightweight surface often acts as a sounding board, amplifying motor vibrations and frame harmonics into audible noise.