Spaghetti / print knocked loose
A tangle of loose filament strands where the print used to be. The part detached and the nozzle kept extruding into air.
Print-killer spaghetti birdnest print failed knocked over
Likely causes
- First-layer adhesion failure
- Warping lifting the part
- Nozzle catching tall thin features
- Support or model tipping
How to fix it
- Fix first-layer adhesion (see "First layer not sticking").
- Add a brim for tall or narrow parts.
- Enable z-hop and "avoid supports on model".
- Add a camera and AI failure detection if your printer supports it.
- Slow down and reduce fan for tall thin prints.
Work through it in order
The fastest path to a fix
Change one thing at a time and print a small test. Start with the first fix listed — it is the most common cause.