Clean the build chamber
You will need...
- Broom/Pan (optional)
- Shop Vacuum (optional)
During dual extrusion prints, a small amount of material is purged from the nozzle after each tool change and removed from the nozzle with the wiper brush, depositing at the bottom of the build chamber.
Sweep out the majority of the plastic waste with a broom and pan, and finish with a shop vac if available.