Defect → cause → fix for the problems that actually come up. Causes are listed most-likely first, because several of these look alike and guessing in the wrong order wastes filament.
Wispy threads between parts
Corners lifting off the bed
Gaps and thin walls
Layers offset mid-print
Bulging first layers
Repeating ridges up the wall
Bumps where the nozzle starts/stops
Echoes after sharp corners
Too much material, rough walls
Gaps or bumps on the top surface
Drooping strands across gaps
Plenty of these are a material problem, not a printer problem. The filament settings chart has nozzle and bed temperatures, drying schedules and the known weak points for 12 materials.
Every number on this page is in the app too — next to the calculators that use it, working offline at the printer.
Get it onGoogle Play