Fix the clogged 3D printing nozzle

1. Unscrew the two hex screws with an Allen wrench.

2. Unscrew the heater and the temperature sensor

Be careful, don’t break the temperature sensor‘s glass cover.

3. Spinout the hot end and the nozzle at the counter-clockwise direction.

4. Spin on the spare hot end and nozzle.

5. Screw on the heater and the temperature.

6. Screw on the two hex screws.

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