¶ Operation Steps for Each Model
The steps below are based on Centauri Carbon 2 Combo. For other models, skip the steps related to parts that are not installed.
| Model | Action | Steps to Skip |
|---|---|---|
| Centauri Carbon 2 Combo | Follow all steps | None |
| Centauri 2 Combo | Skip enclosure-related steps only if the enclosure is not installed |
|
| Centauri Carbon 2 | Skip CANVAS / 4-in-1 hub related steps |
|
| Centauri 2 | Skip enclosure and CANVAS / 4-in-1 hub related steps if they are not installed |
|
If your printer has optional accessories installed, such as CANVAS or an enclosure, follow the steps related to those parts.
¶ Tools and Materials
- 1.5 mm hex key
- 2.0 mm hex key
- 2.5 mm hex key
- White lithium grease
- A short length of filament for testing
- Cut-resistant gloves
- New compound reduction gear and SKD11 extruder drive gear assembly
.png)
¶ Preparation
- Remove the top cover.
.png)
- Open the front door.
.png)
- On the touchscreen, select Control > Home and wait for the X, Y, and Z axes to complete the homing process.
.png)
.png)
- Set the movement increment to 30 mm, and then tap the Down arrow to lower the heated bed to its lowest position.
.png)
.png)
- Turn off the printer and unplug the power cord.
¶ Removal
¶ Disconnect the Extruder Communication Cable
- Use a 1.5 mm hex key to remove the two screws securing the extruder communication cable.
.png)
- Use a 2.5 mm hex key to remove the screw securing the cable chain.
.png)
- Disconnect the extruder communication cable.
.png)
¶ Remove the 4-in-1-hub Assembly
- Use a 2.0 mm hex key to remove the two screws securing the 4-in-1-hub assembly.
.png)
- Remove the 4-in-1-hub assembly.
.png)
¶ Remove the Toolhead Front Cover
-
Open the toolhead front cover.
-
Disconnect the part-cooling fan cable and remove the toolhead front cover.
.png)
.png)
¶ Remove the Toolhead Housing
-
Use a 2.0 mm hex key to remove the four screws securing the toolhead housing.
-
Remove the toolhead housing.
.png)
.png)
¶ Disconnect the Filament Detection Board Cables
- Disconnect the two cables from the filament detection board.
.png)
¶ Remove the Hotend
-
Use a 2.5 mm hex key to remove the screw securing the hotend.
-
Pull down the hot end but do not unplug the plug.
.png)
¶ Remove the 4-in-1-hub Bracket
-
Use a 2.0 mm hex key to remove the two screws securing the 4-in-1-hub bracket.
-
Remove the bracket.
.png)
¶ Remove the Gearbox Assembly
-
Use a 2.0 mm hex key to remove the two screws securing the gearbox assembly.
-
Remove the gearbox assembly.
.png)
.png)
¶ Remove the Cutter Assembly
- Use a 2.0 mm hex key to remove the screw securing the spring, and then remove the spring.
.png)
- Use a 2.0 mm hex key to remove the screw securing the cutter assembly.
Caution: The cutter blade is sharp. Keep your fingers away from the blade and wear cut-resistant gloves when necessary.
.png)
- Remove the cutter assembly.
.png)
¶ Remove the Old Gears
- Use a 2.0 mm hex key to remove the three screws securing the gearbox housing.
.png)
- Open the gearbox housing.
.png)
.png)
- Remove the compound reduction gear.
.gif)
Note: If the compound reduction gear is difficult to remove, reduce the spring tension first. Turn the adjustment screw clockwise to loosen the spring tension.
.png)
- Use a 2.0 mm hex key to loosen the spring adjustment screw.
.png)
- Remove the spring in the direction indicated by the arrow.
.png)
- Remove the SKD11 extruder drive gear assembly.
.png)
.png)
¶ Installation
¶ Install the New Gears
- Prepare the new compound reduction gear and SKD11 extruder drive gear assembly.
.png)
- Install the SKD11 extruder drive gear assembly in the correct position.
.png)
.png)
- Align the spring with the locating post, and then push it into the slot.
.gif)
- Apply a small amount of white lithium grease to the marked area of the gear.
Note: Do not apply grease to any other areas of the gears.
.png)
- Align the compound reduction gear with the bearing hole, and then install it in the gearbox.
.png)
.png)
- Insert a short length of filament into the filament inlet of the gearbox. Manually rotate the gear and check whether the filament can be loaded and unloaded smoothly.
.gif)
- If the filament cannot be loaded properly, use a 2.0 mm hex key to turn the adjustment screw counterclockwise to increase the spring tension.
.png)
- After confirming that the gearbox operates correctly, reinstall and tighten the three screws securing the gearbox housing.
.png)
¶ Install the Cutter Assembly
- Place the cutter assembly in its original position and tighten the corresponding screw to secure it.
.png)
- Place the spring in its original position and tighten the corresponding screw to secure it.
.png)
.png)
¶ Install the Gearbox Assembly
-
Place the gearbox assembly in its original position.
-
Reinstall and tighten the corresponding screws to secure the gearbox assembly.
.png)
.png)
¶ Reconnect the Filament Detection Board Cables
- Reconnect the two cables to their corresponding connectors on the filament detection board.
.png)
¶ Install the Hotend
- Place the hotend in its original position and tighten the corresponding screw to secure it.
.png)
¶ Install the 4-in-1-hub Bracket
-
Place the 4-in-1-hub bracket in its original position.
-
Reinstall and tighten the corresponding screws to secure the bracket.
.png)
¶ Install the Toolhead Housing
-
Place the toolhead housing in its original position.
.png)
-
Reinstall and tighten the four screws securing the toolhead housing.
.png)
.png)
¶ Install the Toolhead Front Cover
- Reconnect the part-cooling fan cable.
.png)
- Close the toolhead front cover.
.png)
¶ Install the 4-in-1-hub Assembly
-
Place the 4-in-1-hub assembly in its original position.
-
Reinstall and tighten the corresponding screws to secure the assembly.
.png)
¶ Reconnect the Extruder Communication Cable
-
Reconnect the extruder communication cable.
-
Reinstall and tighten the corresponding screws to secure the cable.
.png)
- Place the cable chain in its original position and tighten the corresponding screw to secure it.
.png)
¶ Verify the Printer Functions
-
Plug in the power cord and turn on the printer.
-
Place the filament spool on the spool holder, and then insert the filament into the corresponding PTFE tube on the CANVAS system.
.png)
- On the touchscreen, select Filament > Corresponding Channel Number > Load.
.png)
.png)
- Wait for the printer to complete the filament-loading process. Check whether the filament is successfully extruded from the nozzle.
.png)
- After confirming that the filament is extruded normally, tap Confirm.
.png)
-
On the touchscreen, select Settings > Calibration > One-Click Self-Check> Start.
-
After the self-test is completed successfully, the printer is ready for use.
.png)
.png)
.png)
¶ Help Us Improve
Have suggestions for improving our Wiki pages? Please share them through the official ELEGOO Wiki feedback channel.