Note: In this step, 90% Isopropyl Alcohol is used - please read and be familiar with the labels and warnings for this cleaning solvent.

Warning: 90% Isopropyl Alcohol is flammable. Use with care.

Paper towels should be used to wipe down the exterior of the printer to remove old, greasy residue from the rods and clear away any accumulated dust or debris.

Then, lightly dampen a new paper towel with 90% Isopropyl Alcohol and clean the print surface.

Remove any excess filament or debris from the nozzle and extruder.

Note: If the residue is difficult to remove, you may turn the printer on, heat the nozzle to 250 degrees Celsius, turn the printer off, and scrub the burnt plastic off with a brass wire brush.

Caution: Ensure the printer is turned off before touching the brass wire brush to the extruder, as it may short the thermistor or heater cartridge wires.

Warning: Do not touch the nozzle with your hands while it is hot!