RRI Hotend Assembly Instruction
www.asensar.com Document revision: 0.3
Step 1: The dark brown (bigger part) is PEEK isolator and white colour (smaller part) is PTFE socket.
Insert the PTFE socket into PEEK isolator as show in the picture and tighten it using the grub screws.
Step 2: Use PTFE thread seal tape (not in kit) and apply few turns then, screw the nozzle on the heat barrel as show in picture Warning: Don't hold the barrel on thread, since it will damage the threads. Note: PTFE thread seal is very important, else the molten filament start leaking via smalls gaps
Step 3: Now screw the heater block
Step 4: Use PTFE thread seal tape (not in kit) and apply few turns as show in picture Note: PTFE thread seal is very important, else the molten filament start leaking via smalls gaps
Step 5: Now complete the hotend assembly by screwing in the PEEK.
Step 6: Solder the thermistor and 2 pin flat wire connector. Use the heat shrink and PTFE tube for insulation as shown in picture
Step 7: Insert the heating cartridge into heater block and use the grub screw to hold it in place.
Step 8: Insert the thermistor in small hole and use the grub screw and tight gently Warning: Over tightening may damage the thermistor.
Finally assembled hotend should look like this.
RRI Hotend Assembly Guide for RepRap, Prusa 3D Printers