This quick-reference guide maps the most common 3D printing problems to their most likely causes and first fixes. Use it when something goes wrong and you need to diagnose fast. Each entry links to the full guide for that specific problem when you need to go deeper.
Quick Diagnosis Table
| Problem | Most Likely Cause | First Fix | Full Guide |
|---|---|---|---|
| First layer not sticking | Dirty bed or z-offset too high | Clean with IPA, lower z-offset 0.05mm | First layer calibration guide |
| Print warping at corners | Bed temp too low or drafts | Raise bed temp 5°C, add brim, eliminate airflow | Warping guide |
| Stringing between sections | Retraction insufficient or temp too high | Increase retraction 0.1mm, reduce temp 5°C | Stringing guide |
| Gaps in walls or surfaces | Under-extrusion (partial clog or speed too high) | Cold pull, reduce speed 20% | Under-extrusion guide |
| Layers splitting apart | Temperature too low or speed too high | Raise nozzle temp 5°C, slow wall speed | Reduce failures guide |
| Rough bubbly surface | Wet filament | Dry filament at 45-50°C for 4-6 hours | Filament guide |
| Base wider than model (elephant’s foot) | Z-offset too low | Raise z-offset 0.02-0.05mm | Elephant’s foot guide |
| Clicking or grinding from extruder | Partial clog or temp too low | Cold pull, raise temp 5°C | Nozzle cleaning guide |
The Pre-Print Checklist (Prevent Problems Before They Start)
- Clean bed with IPA before every print
- Confirm filament profile matches actual filament loaded
- Check spool is feeding freely, no tangles
- Run first-layer calibration if not done recently
- Enable brim for tall narrow prints or large flat prints prone to warping
The full prevention guide is at how to reduce 3D print failures.
