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Editing Step 74 —

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Connect the extruder stepper motor connectors marked A and B as shown in the first photo. The black wire must be on the left side for both connectors.

Connect the hot end and part cooling fan connectors as shown in the second photo. The red (+) wire must be on the left side.

From left to right you should have: 1) the part cooling fan, 2) the hot end fan and 3) the LED connectors.

Connect the hot end thermistor and cartridge heater as shown in the third photo. Polarity does not matter on these connections.

Double check all of your connections against the photo.

Tidy up the whip wiring using the small Zip Ties as seen in the photos.

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