This is a 3D printed air assist nozzle and visible red laser for use with a KC40-III Laser engraver.

This does not require the conversion board to be used.

The red laser module requires 3.3V to 5V DC and comes with ~5cm of wire. You will need to add suitable wiring from the module to the control board.
Tubing will need to be flexible and either ~8mm ID or ~5mm OD. I have used tubing from a small aquarium successfully.



  • Air Assist Nozzle
  • M3 bolts
  • Red Laser module

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Air Assist Nozzle (K40 Laser Upgrade)

  • £24.99

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