During calibration, the nozzle shall rebound quickly after touching the calibration point on the heated bed surface. If the nozzle does not rebound quickly, clean the nozzle and recalibrate.
¶ When & Why
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At each calibration and before each print.
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During the calibration process, some extruded filaments may adhere to the nozzle surface and make the nozzle surface black. If it is not cleaned in time, it may affect the calibration results.
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During the 3D printing process, some of the extruded filament may stick to the nozzle surface. After the nozzle cools, these filament residues will solidify on its surface. If not cleaned in time, they may cause nozzle jams or leave dark marks on your next print.
¶ Tools Required
- wire brush (provided, in tool box)
¶ Procedures
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Turn on the printer.
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On the touchscreen, tap Control > Extruder and heat the extruder to be cleaned to 200°C.
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After the nozzle is heated, scrape off the filament residue from the nozzle surface with the wire brush. Try to avoid scraping the end of the nozzle with the wire brush to avoid wearing the nozzle.
Be careful of the hot nozzle surface! It is recommended to wear insulated gloves when operating.