A clean 3D printer bed and nozzle contribute to a better first-layer adhesion Dust and filament residue can build up on the 3D printer bed, and this can affect the quality of the print.

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If they become clogged, it can significantly reduce the printing accuracy, so it’s best to clean the nozzle’s exterior with a brass brush whenever you can and invest in spare nozzles.

When it comes to toolchanging 3D printers, idle nozzles tend to drool. Cleaning out that nozzle goo, though, is critical before switching them into use.