¶ Dual Extruder Gears/Extruder Switch Cam
Both the dual extruder gears and the extruder switch cam have spare parts available for replacement. You can choose the necessary spare parts based on your actual requirements.
The spare parts for the dual extruder gears include:
- Extruder Gear × 1
The spare parts for the extruder switch cam include:
- Cam × 1
¶ When to Use
-
Extruder gear wear
-
Cam damage
¶ Tools and Materials Needed
-
New dual extruder gears/extruder switch cam
-
H2.0 Allen key
-
H1.5 Allen key
Specifications and quantities of screws involved in replacing the H2D dual extruder gears/extruder switch cam (it is recommended to keep the removed screws properly to avoid loss):
| Specification&##x20; | Image | Use | Position | Quantity | |
|---|---|---|---|---|---|
| M2.5x7 | Fix the dual extruder filament guide (marked by the red circles) |  |
3 | ||
| Fix the quick change tool interface |  |
2 | |||
| BT2x6 | Fix the dual extruder filament guide (marked by the green squares) |  |
1 | ||
| BT2x5 | Fix the dual extruder idlers and filament sensor FPC |   |
2 |
¶ Safety Warning
IMPORTANT!
It's crucial to power off the printer before conducting any maintenance work, including work on the printer's electronics and tool head wires. Performing tasks with the printer on can result in a short circuit, leading to electronic damage and safety hazards.
During maintenance or troubleshooting, you may need to disassemble parts, including the hotend. This exposes wires and electrical components that could short circuit if they contact each other, other metal, or electronic components while the printer is still on. This can result in damage to the printer's electronics and additional issues.
Therefore, it's crucial to turn off the printer and disconnect it from the power source before conducting any maintenance. This prevents short circuits or damage to the printer's electronics, ensuring safe and effective maintenance. For any concerns or questions about following this guide, we recommend submitting a technical ticket regarding your issue and we will do our best to respond promptly and provide the assistance you need.
¶ Remove the Dual Extruder Gears/Extruder Switch Cam&##x20;
¶ Step 1: Remove the dual extruder idlers and filament sensor&##x20;
You can refer to the following Wiki to remove the dual extruder idlers and filament sensor, which will facilitate the subsequent removal of the extruder gear and cam:
Replace H2D Dual Extruder Idlers and Filament Sensor
¶ Step 2: Remove the extruder gear/cam
Simply remove the cam directly. The extruder gear might be tight; if it cannot be removed directly, you can use an Allen key to gently pry and remove the extruder gear.
¶ Install the Dual Extruder Gears/Extruder Switch Cam&##x20;
¶ Step 1: Install the extruder gear/cam
Place the new cam back into position. It is recommended to position the trapezoidal platform to the left or right to facilitate the subsequent installation of the dual extruder idlers and filament sensor. Insert the new extruder gear into the extruder and press it firmly.
¶ Step 2: Install the dual extruder idlers and filament sensor
You can refer to the following Wiki to install the dual extruder idlers and filament sensor:
Replace H2D Dual Extruder Idlers and Filament Sensor
¶ Verify the Functionality
Connect the power and turn on the printer. Use the screen to switch between the hotends and check if the left and right hotends can switch normally. Click the "Load" button and check if the filament extrudes normally.
¶ End Notes
We hope the detailed guide provided has been helpful and informative.
If this guide does not solve your problem, please submit a technical ticket, we will answer your questions and provide assistance.
If you have any suggestions or feedback on this Wiki, please leave a message in the comment area. Thank you for your support and attention!