RAISE 3D E2 User manual
How to Replace the Thermocouple –V1.0 Date:07/20/2020
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Manual E2 –How to Replace the Thermocouple –
V1.0
Tools：
①2 mm hex wrench
②1.5 mm hex wrench
③3 mm hex wrench
④Adjustable Wrench
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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1. Before you start, please unload the filament from the extruder of which the thermocouple on the
hotend needs to be replaced first.
Note:
For the unload temperature,
please refer to the printing temperature of the filament or the
label on the filament spool.
2. Power off the printer.
3. Release the extruder connection cable retaining buckle.
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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4. Remove the extruder connection cable from the board by pressing the small plastic
connector down, and gently pulling the connector out.
5. Use a 3mm hex wrench to remove the two screws retaining the extruder on the X-axis.
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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6. Remove the extruder from X-axis, and put it on a working desk.
7. Use a 2mm hex wrench to remove the two screws retaining the extruder connection board
cover to the extruder, and remove the extruder connection board cover.
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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8. Use a 2mm hex wrench to remove the two screws retaining the front cover to the extruder, and
remove the front cover.
9. Use a 2mm hex wrench to remove the two screws retaining the extruder connection board to the
extruder.
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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10. Gently pull out the extruder connection board in the direction of the arrow shown below. Be
careful not to break the small protrusion.
11. Remove the thermocouple cable and heating rod power cable from the extruder connection board
on the print head.
Note: The positions of thermocouple cable and heating rod power cable connector on the left and
right print head are different, please distinguish between them according to the marks in the
following figure.
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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12. There are two rows of sharp welding pins on the back of the board. Cover the sharp welding pins
with thick insulation tape to prevent it from injuring the nylon covering of the hotend cable, or it
may cause short circuit.
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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13. Loosen the hotend retaining screw with the 2mm hex wrench.
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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14. Pull the entire hotend assembly out.
15. Remove the thermocouple on the hotend with an adjustable wrench.
Note: It may be more difficult to disassemble the thermocouple If there are any filament
remaining on it. If this happens, please reconnect the print head and heat the hotend to melt the
filament. And be careful not to damage the heating rod power cable when removing the
thermocouple.
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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16. Prepare a new thermocouple, and then screw it back on the hotend.
Note:
Please make sure that the thermocouple is fully screwed. If the thermocouple is not fixed
completely, the printer will report a board error.
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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17. Insert the hotend back to the print head.
18. After the hot end is fully inserted, reinstall the retaining screw.
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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19. Bend the cable around the motor.
20. Place these cables into the cable management slots of the extruder controller board.
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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21. Plug the small protrusion of the board into the hole on the extruder.
22. Plug the thermocouple cable and heating rod power cable back to the extruder connection board
on the print head.
Note:
The positions of thermocouple cable and heating rod power cable connector on the left and
right print head are different, please distinguish between them according to the marks in the
figure.
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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23. Reinstall the two screws with a 2mm hex wrench and fix the extruder connection board to
the extruder.
24. Put the front cover back to the extruder, and use the 2mm hex wrench to reinstall the two
screws.
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25. Put the extruder connection board cover back to the extruder, and use the 2mm hex wrench to
reinstall the two screws.
26. Put the extruder back to the X-axis, and reinstall the two screws retaining the extruder on the X-axis.
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27. Insert the extruder connection cable back into the extruder, and press the retaining buckle to hold
the cable in place.
28. Turn on the printer and run the five-step wizard. It is recommended to adjust the height of the left
and right nozzles as well. (For more information please refer to the tutorial: Manual E2 –How to
Adjust the Height of Left and Right Nozzle –V1.0).
Note:
You can find the “Offset Calibrations” at “Settings>Machine>Maintenance>Offset
Calibration”.
–END –
How to Replace the Thermocouple –V1.0 Date:07/27/2020
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