Replacing a Gigabot nozzle


Replacing a nozzle on Gigabot is a delicate process that is unadvised unless you have a torque wrench and experience. The nozzle is a fragile component that is precision tightened into the heater block, and its proper assembly is essential to the operation of the Gigabot. The need to replace the nozzle may be due to a clog or erosion, or to change the orifice diameter to alter its resolution capabilities. The nozzle may only be changed twice before the aluminum threads of the heater block are unable to properly function, then a full hot end swap is necessary.


Video Instructions:

For a brief video covering this process for a standard hot end you may watch this video: Link


Written Instructions:

  1. Determine that you have to remove the Gigabot nozzle and can’t avoid it. Cold pulls can help unclog nozzles.
  2. Our nozzles are made by Microswiss. The standard nozzles are nickel plated brass with a 0.4mm orifice and M6 thread, but you can choose from any at this link: Online Store or contact our or for purchasing.
  3. Heat up the hot end to 180C
  4. Put cardboard or other similar material beneath the nozzle to protect the bed in case the nozzle falls after unscrewing it. A hot nozzle that falls on the bed can damage the PrintinZ print surface.
  5. Use pliers to grip the heater block to prevent it from rotating while unscrewing the nozzle.
  6. Use a 7mm size wrench to unscrew the nozzle. It should be turned clockwise if looking down at the bed or counter-clockwise if looking up from the bed.
  7. After removal, place the hot nozzle on a surface that can withstand the high temperature while the nozzle cools.
  8. With the hot end still hot, take your replacement nozzle and screw it into the heater block, stopping before its tight
  9. Next you will need to use a torque wrench to tighten the nozzle to the below specs:
    1. If you are replacing the nozzle on a standard size hot end:
      1. 27.5 in-lbs if the hot end is heated to 180C
      2. 34.5 in-lbs if the hot end is room temperature (only applicable if the hot end is unused)
    2. If you are replacing the nozzle on our Mondo heater block
      1. 31.5 in-lbs if the hot end is heated to 180C
      2. 39.5 in-lbs if the hot end is room temperature (only applicable if the hot end is unused)


Questions or concerns? Contact to open a support ticket.

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