I was trying my first print on the Prusa XL, and I was having problems with bed adhesion. As a result, the nozzle was pushing around the filament that it’d just put down, and the filament was melting onto the outside of the nozzle.
The Prusa MK3S Handbook (s 13.5/pg 72) says: “Use a wire brush to clean the nozzle from the outside.”
I didn’t see a wire brush around. There was one on the pegboard, but I thought it might be reserved for the resin printers. Is a wire brush still the recommended way to clean a nozzle? Do we have one?
[I solved the bed adhesion problem by using a “brim”]
I believe the wire brush is no longer the preferred Method. Danny lent me some Q-tips to clean the nozzle once, though I don’t know if this is the preferred solution. I will ask the 3D Printing stewards to address this.
We moved away from wire brushes because people were brushing the very delicate and hard-to-repair wires of the thermistor and heating cartridge instead of the nozzle. Riko is in the process of converting all the Mk3s to a Revo hotend so the nozzle cleaning best practices will likely need to be reexamined.