3D Print Troubleshooting
Start with what you can see. Record the current settings, make one change, and compare the same test again.
Find your symptom
First layer will not stick
Check surface cleanliness, first-layer height and the correct plate profile before adding adhesives.
Work through the fixCorners lift or the part warps
Look for drafts, uneven cooling and too little bed contact. Check material and enclosure guidance for your machine.
Work through the fixStrings between features
Start with dry material and a suitable temperature. Then tune retraction and travel in controlled steps.
Work through the fixThin lines or missing extrusion
Inspect the filament path, spool drag and nozzle before increasing flow.
Work through the fixLayers split or parts break
Review orientation and bonding conditions. More infill cannot fix every weak layer.
Work through the fixNozzle clogs or flow stops
Identify a full or partial blockage and follow the manufacturer's service procedure.
Work through the fixBulging first layer or elephant foot
Separate first-layer squish from heat and dimensional compensation.
Work through the fixRough top surfaces
Check top thickness, support under top layers and flow before slowing every feature.
Work through the fixHoles or mating parts do not fit
Measure a repeatable test part and distinguish shrinkage, geometry and machine calibration.
Work through the fixMake your next test useful
- Save a photo, the slicer profile and the failed part before changing anything.
- Check whether the issue happens on every model or just one geometry.
- Return to a known working profile when several settings have changed at once.
- Stop and follow the manufacturer's instructions if there is a damaged wire, overheating, leaking resin or a mechanical fault.
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