Removing/Installing Hotends

WARNING	Our profile presets in our cloud and desktop slicer are designed for the pre-installed Hotends on the Portrait 3D printer. Changes may affect results negatively.
		12v All-Metal with a .4mm brass nozzle
		12v PTFE with a .4mm brass nozzle

Remove a Hotend

1. Turn off the printer, disconnect the power cord, and make sure the Hotends are cool before starting.
2. Remove the roof of the machine.
   
3. Remove the collet clip(s) from the extruder(s). (Be careful not to lose the clips)
   
4. Push the black collet (red arrow) and pull the Bowden tube out while holding (green arrow).
   
5. Remove the printhead lid to expose the Hotends.
6. Unplug the Hotends connectors carefully while holding them.
   
7. Grab a Phillips screwdriver and loosen the holder screw carefully, DO NOT remove it completely.
   
8. Pull the Hotend down carefully. Check the cables are not entangled or caught anywhere.
   

Installing a Hotend

1. Thread the Hotend's Bowden tube through the Hotend holder.
   
2. Ensure the Hotend is pushed up all the way into the Hotend holder.
   
3. While pushing the Hotend upwards, tighten the Hotend’s holder screw.
   
4. Plug the Hotend cables back into the connectors.
   
5. Put the front print head cover back on the print head, and check that the Hotend wires do not show below the bottom edge of the cover
6. Preheat the Hotend to a 205 c temperature using the manual controls (Setup > Manual Controls > Controls).
7. When the Hotend has reached 205 c, grab the heat block using pliers and use a wrench to tighten the nozzle to make sure there is no gap between the PTFE Bowden tube and the Nozzle/heatbreak.
   
8. Put on the heat block sock.
9. Check calibration.

Learn how to assemble the hotends here.