Browse common 3D printing defects, causes & fixes
12 defects
Thin plastic threads left between parts during travel moves.
Print corners or edges lift from the bed, causing distortion.
Layers become misaligned mid-print, producing a staircase effect.
Not enough plastic is extruded, leaving gaps, weak walls, or missing layers.
Too much plastic is extruded, causing rough surfaces and dimensional inaccuracy.
Wave-like ripple patterns appear on surfaces after sharp corners.
First layer is wider than intended, causing a flared base.
Top surface has bumpy, uneven, or holey appearance.
Layers split apart, creating visible cracks or weak print structure.
Repeating horizontal bands or lines visible on vertical surfaces.
Small bumps or spots appear on the print surface, especially at layer start/end.
Horizontal spans between supports sag, droop, or have rough undersides.