Ringing and Ghosting
Reduce repeated ripples that appear after corners, lettering or sharp changes in direction.
Ringing, sometimes called ghosting, appears as repeated waves on the surface of a print after a sharp corner or feature.
It is usually caused by vibration.
Start by checking that the printer is sitting on a stable surface.
Check belt tension and ensure the print head and bed move smoothly.
Very high acceleration can increase ringing because the machine has to change direction extremely quickly.
Reducing acceleration can improve surface quality, although it may increase print time.
Modern printers may support input shaping or vibration compensation. If available, run the manufacturer's calibration routine.
Make sure there are no loose screws or printer components.
Very tall, narrow prints can also oscillate during printing. Slowing down higher layers may help.
Ringing does not usually reduce the strength of a print, but it can significantly affect surface appearance.
Common causes: excessive acceleration, loose belts, printer vibration, poor input-shaping calibration.