¶ Toolhead boards of P1P
The toolhead boards mentioned here consist of three parts, the TH board, the extruder connection board, and the TH board FPC cable connecting them.
¶ Safety Warning
IMPORTANT!
It's crucial to power off the printer before performing any maintenance work on the printer and its electronics, including tool head wires, because leaving the printer on while conducting such tasks can cause a short circuit, which can lead to additional electrical damage and safety hazards.
When you perform maintenance or troubleshooting on the printer, you may be required to disassemble some parts, including the hotend. This process can expose wires and electrical components that could potentially short circuit if they come into contact with each other or with other metal or electrical components while the printer is still on. This can damage the electronics of the printer and cause further damage.
Therefore, it's essential to switch off the printer and disconnect it from the power source before doing any maintenance work. This will prevent any short circuits or damage to the printer's electronics. By doing so, you can avoid potential damage to the printer's electronic components and ensure that the maintenance work is performed safely and effectively.
If you have any concerns or questions about following this guide, open a new ticket in our Support Page and we will do our best to respond promptly and provide you with the assistance you need.
¶ Tools
H1.5 hex key
¶ Preparation
Unload the filament and power OFF the printer.
WARNING! Please make sure that ALL hotend/toolhead changes are done with the power OFF. Unplugging and replugging any of these connectors while the power is ON could cause a short circuit and permanent damage to the toolhead boards.
¶ Video guide
¶ Disassembly
¶ Step 1 - Remove the housing of the toolhead
Refer to this wiki guide The housing of toolhead to remove the toolhead housing.
Note: If only the TH board needs to be removed then only the rear housing of the toolhead is needed to be removed.
¶ Step 2 - Remove the FPC cable
Disconnect both ends of the FPC cable for removal.
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¶ Step 3 - Remove the connection board
Disconnect the 3 cable connectors as shown in the image below (the hall switch cable, hotend fan cable, and the heater cable), remove the 2 screws with an H1.5 hex key and take off the connection board.
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¶ Step 4 - Remove TH board screws
Disconnect the extruder motor cable, and unscrew the 3 screws using the H1.5 hex key.
¶ Step 5 - Remove the TH board
Flip the TH board over, remove the toolhead cable, and take off the TH board.
¶ Assembly
¶ Step 1 - Install the TH board
Now re-connect the cable of the tool head, and install the TH board on the back cover of the carriage with the motor connector facing outwards.
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The MC-TH connector is directional, so please ensure the socket is inserted correctly. If it is inserted in reverse, it will cause a power short circuit, resulting in the printer reporting an HMS error or not being able to power on properly.
¶ Step 2 - Secure the TH board
Lock in the 3 screws back onto the board and reconnect the motor cable as shown in the image below.
¶ Step 3 - Install the extruder connection board
Install the extruders connection board on the front cover of the carriage, lock in the 2 screws, and proceed to re-connect the heater cable, the hotend fan cable, and the hall switch cable.
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¶ Step 4 - Install the FPC cable
Install the FPC cable in the cable groove above the carriage, and connect the two ends to the FPC connectors of the connection board and the TH board, respectively.
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¶ Step 5 - Install the toolhead housing
Refer to The housing of toolhead to install the toolhead housing.
¶ How to verify
1. Visually check the appearance, to ensure that the joint positions are free of any misalignment and are flush.
2. Power on the printer and run the device self-test process. If the self-test passes, the operation is successful.
