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Tool:
2mm hex wrench
A. Unload the Filament in Extruder.
Make sure the printing task is paused or completed before unloading the filament.
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 begin 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 filament 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. Turn off the printer and cut off the power.
Figure 6 Turn off the printer and cut off the power.
2. Remove the left extruder.
1) Release the red buckle, and hold the red handle on the front of the interchangeable hot end to remove it from the printer. For details on how to do this, see How to Install and Disassemble Interchangeable Hot Ends V1.0.
Figure 7 Release the red buckle, and remove the interchangeable hot end from the printer.
Note: The temperature of the interchangeable hot end is relatively high, please wait for it cooling down before removing; or wear the supplied heat insulation gloves before operating.
2) Remove the 2 fixing screws on the hotend adapter board with the hex wrench.
Note: To avoid electric shock, do not touch the hotend adapter board when the power is on or when your hands are wet.
Figure 8 Remove the 2 fixing screws on the hotend adapter board with the hex wrench.
3)Remove the 2 screws and the cover.
Figure 9 Remove the 2 screws and the cover.
4)Locate the position of hotend connecting cable, press the upper small buckle, unplug the hot end connecting cable, and remove the hotend adapter board.
Figure 10 Locate the position of hotend connecting cable, press the upper small buckle, unplug the hotend connecting cable, and remove the hotend adapter board.
1. Prepare the replacement hotend adapter board. Locate the position of the hot end connecting cable, press the upper small buckle, and connect the hotend connecting cable to the replacement hotend adapter board.
Note: The side marked "CODE BAR" is the front side of the hotend adapter board.
Figure 11 Press the upper small buckle, and connect the hot end connecting cable to the replacement hotend adapter board.
2. Align the hotend adapter board to the slot, insert the cover, hold and press the cover with your hand and locate the screw hole.
Figure 12 Align the hotend adapter board to the slot, install the cover, hold and press the cover with your hand and locate the screw hole.
3. Tighten the 2 screws with the 2mm hex wrench.
Note: Install the hotend adapter board with “CODE BAR” face up.
Figure 13 Tighten the 2 screws with the 2mm hex wrench.
4. Install the interchangeable hot end. Release the red buckle, and hold the handle on the front of the interchangeable hot end to install it on the extruder. For details on how to do this, see How to Install and Disassemble Interchangeable Hot Ends V1.0.
Figure 14 Release the red buckle, and hold the handle on the front of the interchangeable hot end to install it on the extruder.
D. Check If the Printer Runs Normally After Replacing the Hotend Adapter Board.
1. Find the power switch at the bottom right on the back of the printer and turn on the switch.
2. Check if the extruder operates normally by going through the process of loading the filament.
1)Select the “Utilities” tab on the screen.
Figure 15 Enter the “Utilities” tab.
2)Set the temperature of the nozzle to the proper unloading temperature. For example, the Raise3D PLA default loading temperature is 215℃. Here, we use the left nozzle as an example of how to perform this procedure. We set the left nozzle temperature to 215℃.
Note: The recommended loading temperature for other filaments is typically 5-10℃ higher than its common printing temperature.
Figure 16 Set the temperature of the nozzle to the proper unloading temperature.
3)Select the “Load” button and the printer will begin to heat. When it reaches the target temperature, select "Load".
Figure 17 Load the filament.
4)The extruder gear will start to rotate. Gently push the filament into the extruder. When the filament extrudes from the nozzle, click "OK" to complete the loading.
Figure 18 Gently push the filament into the extruder.
5)Confirm that the filament can extrude evenly, and then insert the guide tube back into place. Now that the printer operates normally after replacing the hotend adapter board, you can start printing your model.
Figure 19 The printer runs normally, insert the guide tube back into place.
[ Pro3 Series –How to Replace the Extruder – V1.0 ]
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