The hotend module consists of two separate hotends, one extruding the model material and the other extruding the support material. It is also responsible for heating and melting the materials as well as for maintaining the proper temperature of the materials during the whole printing process. Therefore, if the whole module does not heat up or does not extrude either of the materials, or the material residues accumulate around the hotends and are difficult to remove, the hotend module needs to be replaced.

If any material is loaded into the extruder, unload it before replacing the hotend module.
1

Unplugging the Power Cable

Turn off the printer and unplug the power cable.

2

Opening the Top Door

Open the top door.

3

Unplugging the Extruder Cable

Unplug the extruder cable.

4

Unplugging the Lower Extruder Fan Cable

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Unplug the lower extruder fan cable.

5

Unlocking the Material Guides

Unlock the material guide tube switches on both sides of the extruder using a flathead screwdriver.

6

Detaching the Material Guides

Bend the outer material guide gently and move it up and down until you detach it. Repeat this step with the other material guide. Detach both material guide tubes from the extruder.

7

Unscrewing the Extruder

Unscrew the two screws securing the extruder.

8

Extruder Removal

Remove the extruder from the printer.

9

Front Extruder Cover Removal

Detach the front extruder cover from the extruder.

10

Unscrewing the Hotend Module part 1

Unscrew the hotend module screw located on the front of the extruder.

11

Unscrewing the Hotend Module part 2

Unscrew the two hotend module screws located at the bottom of the extruder.

12

Hotend Module Removal

Detach the hotend module from the extruder.

13

Hotend Module Assembly

Install the hotend module in the extruder.

14

Securing the Hotend Module part 1

Secure the hotend module in the extruder with the two screws.

15

Securing the Hotend Module part 2

Screw in the remaining screw.

16

Front Extruder Cover Assembly

Attach the front extruder cover to the extruder.

17

Extruder Assembly

Place the extruder back in the printer.

18

Securing the Extruder

Secure the extruder with the two screws.

19

Attaching the Material Guides

Attach the material guide tube to the extruder. Next, install the outer material guide gently in its place. Repeat this step with the other material guide.

20

Locking the Material Guides

Lock the material guide tube switches on both sides of the extruder using a flathead screwdriver.

21

Plugging the Lower Extruder Fan Cable

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Plug the lower extruder fan cable in.

22

Plugging the Extruder Cable

Plug the extruder cable in.

23

Closing the Top Door

Close the top door.

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