① 2mm hex wrench
② 2.5mm hex wrench
③ Hotend Controller Board
When you are ready to unload the filament, make sure you have paused or completed the printing task.
1. Select the “Utilities” tab on the screen.
Figure 1 Enter the “Utilities” tab.
2. Set the temperature of the nozzle to the proper loading temperature. For example, the Raise3D PLA default loading temperature is 215℃. In this guide, we demonstrate how to perform this procedure using the left nozzle as an example. We set the left nozzle temperature to 215℃.
Figure 2 Set the temperature of the nozzle to the proper unloading temperature.
3. Select "Unload", and the printer will start heating. When the printer reaches the target temperature, select "Unload". The extruder will pre-extrude the remaining filament and start to withdraw the filament.
Figure 3 Unload the filament.
4. Press the quick connecter, and pull out the filament guide tube.
Figure 4 Press the quick connector, and pull out the filament guide tube.
5. Gently pull the filaments out of the extruder. After the filament is completely removed from the extruder, select "OK" on the screen to end the unloading.
Figure 5 Gently pull out the filament from the extruder.
1. Check the version number of your printer's hotend controller board. Click the setting button to enter the setting interface. Then click "Local Settings>More Settings>Hardware Information>Sub-controller" to check the version number of the current hotend controller board.
Figure 1 Check the firmware version number of the hotend controller board.
2. I2. If the version number of your hot-end control board is lower than v.1.0.1018, the firmware update may fail after replacing the hot end controller board. Please contact the Raise3D technical support for support.
If your version number is above v.1.0.1018, please proceed to the next step.
1. Turn off the printer.
Figure 1 Turn off the printer.
2. Remove the 7 screws on the PCB cover. Use a 2mm wrench to remove the 6 screws circled in red, and a 2.5mm wrench to remove the 1 screw circled in green.
Figure 2 Remove the PCB cover.
3. Remove all the cables on the old hotend controller board, including two Hotend Connecting Cable (① and ②), two Fan Connecting Cables (③ and ④), one Right Motor Cable ⑤, one Servo Cable ⑥, one Left Motor Cable ⑦, and one 2X20P Flat Cable ⑧.
Figure 3 Remove all the cables on the old hotend controller board.
Note: If you cannot remove the 2X20P Flat Cable smoothly, you can first remove the 3 securing screws on the 2X20P Flat Cable Retainer Plate with a 2mm hex wrench, then remove the 2X20P Flat Cable Retainer Plate.
Figure 4 Remove the 2X20P Flat Cable Retainer Plate.
4. Remove the 2 securing screws with a 2.5mm hex wrench on the old board shown in the figure below, and then carefully remove the old board from the extruder.
Figure 5 Remove the 2 securing screws on the old board.
Figure 6 Carefully remove the old board from the extruder.
1. Prepare a new hotend controller board and insert the new hotend controller board into the slot on the back of the extruder.
1. Align the hotend controller board with the Auto-leveling assembly for installation.
2. Carefully insert the protruding part on the back of the hotend controller board into the slot on the back of the extruder to avoid damaging any small parts.
Figure 1 Prepare a new hotend controller board and insert the new hotend controller board into the slot.
2. Install two securing screws with a 2.5mm hex wrench as shown in the figure below.
Figure 2 Install 2 securing screws.
3. Insert all the connecting cables back into the original slots on the new board, and then install the 2X20P Flat Cable Retainer Plate with a 2mm hex wrench.
Figure 3 Insert all the connecting cables back into the original slots.
Note: Insert the 2X20P Flat Cable back into the slot along the original crease, and fix three securing screws on the 2X20P Flat Cable Retainer Plate.
Figure 4 Fix the Flat Cable Retainer Plate.
1. After you replace the new hotend controller board, you need to update the firmware.
Note: Please make sure that all cables are properly connected before updating, all cables are correctly connected, otherwise the update will fail.
2. After replacing the hot end controller board, power on the printer. Click the "Setting" icon to enter the setting interface. Go to "Update > Local Update > Update Motion Controller Board Firmware", and select "Pro3-HCB-1.2.0310.mcufirm" to update the firmware.
Figure 1 Update the firmware.
You need to update the RaiseTouch firmware first, then you can access to the latest version of hot end controller board firmware. For how to update RaiseTouch firmware, please refer to Pro3 Series-How to Update RaiseTouch Firmware.
1. Before reinstalling the PCB cover back to the extruder, you need to verify whether the printer is operating properly.
1) Turn on the printer, in the "Utilities" interface, and click the "Home all" button of the Z axis to check whether the extruders can move normally.
Figure 1 Click the Z-axis "Home all" button.
2) Click the icon on the menu bar of the home page to enter the Bed leveling interface. Click the “Simple Mode” and run a 9-point leveling to check the flatness of the print plate.
Figure 2 Run the bed leveling.
3) Load and unload the filament to the left and right extruders to check whether the filament can be load and withdrawn normally. How to load and unload filament, please refer to Pro3 series - How to Load and Unload the Filament.
4) Turn on the model cooling fan. Go to the "Tunes" page, set the fan speed to 100, and check whether the fan runs normally.
Figure 3 Turn on the fan.
5) On the "Utilities" interface, click the left and right nozzles to switch the left and right nozzles, check whether the left and right nozzles can be switched normally.
Figure 4 Switch the left and right nozzle.
6) Check whether the extruder indicator light is normal. Please refer to FAQ for the meaning of extruder indicator light.
Figure 5 Check the extruder indicator light.
2. Perform the above operations, if any fault is found, please re-check the wiring or whether the firmware is successfully updated.
3.if the extruder can operate normally, install the PCB cover back to the extruder. Then install a total of 7 securing screws. Use a 2mm wrench to install the 6 screws circled in red, and a 2.5mm wrench to install the 1 screw circled in green.
Figure 6 Install the PCB cover back to the extruder.
[Pro3 Series-How to Replace the Hotend Controller Board-V1.0]