Change Core

Replacing extruders in multicore printers, such as Spitfire, Zen, and Flex extruders, may vary slightly from one model to another, but here’s a general procedure for changing extruders:

STEP 1: TURN OFF THE PRINTER

Before starting any maintenance, make sure your multicore printer is completely turned off and disconnected from the power supply to ensure safety during the process.

STEP 2: DISCONNECT THE RJ CONNECTORS AND THREAD PULLER

  • Disconnect all RJ connectors from the extruder and wire puller. These connectors are responsible for electrical communication between the extruder and the control system.
  • Also disconnect the wire puller, which can be connected to the extruder or the power system.

STEP 3: UNSCREW THE SCREWS IN THE METAL JOINTS OF THE HANDLING ARMS

  • Using a 4 mm hex wrench, unscrew the six screws that secure the metal joints of the handling arms to the extruder.
  • Once the screws are fully loosened, you can pull out the handling arms and keep them resting along the rails.

STEP 4: REMOVE THE SILICONE RUBBER BANDS

  • Remove the three silicone rubber bands from the loops on the handling trolleys.
  • NOTE: This part may not be required for the Flex Extruder.

STEP 5: PLACE THE NEW EXTRUDER

  • Store any leftover wiring or take the necessary wiring, depending on your needs, in the compartment located on the middle level inside the printer.
  • Place the new extruder in the appropriate area.

STEP 6: INSERT THE SILICONE RUBBER BANDS AND SECURE THE JOINTS

  • Insert the silicone elastic bands into the handling trolleys via the dedicated loops if necessary.
  • Insert the joints of the handling arms into the seats of the extruder plate.
  • Retighten the six screws with the 4 mm hex wrench to lock the joints to the extruder plate.

STEP 7: CONNECT THE RJ CONNECTORS AND PROCEED WITH SELF-CALIBRATION

  • Connect the RJ harnesses of the extruder and wire puller according to the corresponding colors.
  • Once the replacement of the extruders is complete, proceed to self-calibrate the printer to ensure that everything is set up correctly for future prints.

Remember that the specific procedure may vary slightly based on the model of your multicore printer and the type of extruder used. Be sure to also consult your printer’s specific manual for further details and instructions.