Neje 40W Laser Module Air Assist
thingiverse
This is my take on an air assist for the Neje 40W laser module. There are 2 parts: The adapter and the nozzle. The nozzle is a press-fit into the base of the adapter. The nozzle will sit at the right height for the focus of the laser (the 40W module is a fixed focus laser). To install, remove the acrylic face plate from the laser module and replace with the adapter. Attach 6mm ID hose to the hose barb connector on the side and use a couple of zip-ties to secure. Insert the nozzle from the bottom. It is a resistance fit, however, if its loose, try adding a layer of tape around or just glue in place (make sure the nozzle is rotated properly so its pointing at the laser beam). UPDATE 4/4/2021 I have uploaded a version to suit 4mm ID hose. Note I have not tested this.
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