Beginner guides · Nozzle sizes
0.4 mm vs 0.6 mm Nozzle: Which Should You Choose?
Compare 0.4 mm and 0.6 mm nozzles for detail, layer height, flow, print time, strength, and filled materials, plus a safe switching checklist.
FDM field guidePractical · Independent · Free
Fix Your
3D Prints.
Practical troubleshooting guides, settings, calculators, and maintenance tips for FDM 3D printing.
Start here
What’s wrong with your print?
Match the visible symptom first. Change one variable at a time, then run a small test print.
01 / STR
Stringing
Fine hairs appear between separate parts.
02 / WRPWarping
Corners curl upward or lift from the bed.
03 / BEDPoor bed adhesion
The first layer slides, peels, or will not stick.
04 / CLGClogged nozzle
Little or no filament exits the hotend.
05 / EXTUnder extrusion
Lines look thin, weak, or incomplete.
06 / SHFLayer shifting
Upper layers jump sideways mid-print.
Measure before you print
Free practical tools
Fast estimates that stay in your browser. Bring the numbers from your slicer and material datasheet.
Workshop library
Recently published
21 published guides with diagnosis, controlled tests, and clear ways to verify the result.
Troubleshooting · Stringing and oozing
Why Is My 3D Print Stringing? Causes and Fixes
Diagnose 3D print stringing and fix it in a safe order by checking filament and the nozzle, then tuning temperature, retraction, and travel.
Troubleshooting · Warping and lifting
How to Fix 3D Print Warping
Stop 3D prints from curling at the corners by checking bed preparation, first-layer calibration, temperature, drafts, cooling, and model geometry.
Troubleshooting · Bambu Lab first layer
Bambu Lab PLA First-Layer Troubleshooting: Plate, Profile, and Leveling
Diagnose Bambu Lab PLA adhesion failures with a documented baseline, symptom-based checks, a repeatable comparison, and a record for support.
Materials · PLA temperature
Best PLA Temperature Range: Nozzle and Bed Settings
Find the right PLA nozzle and bed temperature for your filament, printer, speed, and build plate, then tune it with a controlled temperature test.