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3D Printing Defects
Click a defect to get the exact fix checklist + recommended calculators.
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All Defects
Under-Extrusion
Thin or missing lines, weak walls, gaps between infill and perimeters.
Over-Extrusion
Bulging walls, messy surfaces, poor dimensional accuracy.
Stringing / Oozing
Hair-like strings between parts and travel paths.
Blobs & Zits
Random bumps on walls, pimples, surface acne.
Elephant Foot
First layer squish causing flared bottoms and poor fit.
Ringing / Ghosting
Echo ripples after corners and details.
Layer Shift
Sudden offsets in X/Y creating stair-stepped prints.
Warping / Corner Lift
Corners lifting off the bed, curled edges.
Poor Bed Adhesion
First layer not sticking reliably.
Nozzle Clog
Under-extrusion, clicking extruder, inconsistent flow.
Z-Banding / Z-Wobble
Periodic waves or bands aligned with Z movement.
Inconsistent Layers
Layer thickness changes, rough walls, random artifacts.
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