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Tools
H2.0 hexagonal wrench
New hotend
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Steps
Lower the platform to the middle of the printer and below, leaving space for operation.
Remove the extruder magnetic outer cover.
Set the nozzle temperature to 0℃ and wait for the nozzle to cool down to below 50℃ to avoid hurting yourself. [Stop heating].
Power off the printer and unplug the power cord.
Unplug the thermistor terminal.
Unplug the heating terminal.
Use a wrench to unscrew the four M3 screws on the hotend.
Remove the old hotend.
Take out the new hotend and tighten the four M3 screws on it with a wrench.
Plug in the heating terminal.
Plug in the thermistor terminal.
Install the extruder magnetic outer cover.