Ringing (also called echoing) appears as ripple-like patterns on the surface of a print, typically visible after sharp corners or direction changes. These wavy artifacts are caused by vibrations in the printer frame or motion system.
Common Causes
- High acceleration and jerk values — Aggressive direction changes excite mechanical vibrations
- Loose belts — Slack belts amplify vibrations and reduce motion precision
- Heavy print head — Extra mass increases inertia and worsens oscillation after direction changes
- Frame resonance — A wobbly or lightweight frame transmits vibrations to the print
- Excessive print speed — High speeds on sharp geometry amplify vibration effects
Recommended Fixes
- Enable input shaper (Klipper) or linear advance to dampen resonance effects
- Reduce acceleration to 1000-2000 mm/s² and jerk to 5-8 mm/s
- Tighten all belts to proper tension — they should be firm but not overly tight
- Secure the printer on a stable, heavy surface or add anti-vibration feet
- Reduce print speed for outer walls to 30-40mm/s for cleaner surfaces
- Tighten all frame bolts and check for loose screws in the motion system
- Consider lighter print head components if using heavy aftermarket parts