Ho to Install AIr Assist to NEJE Master 2S Plus

Hi All,

I have the NEJE Master 2S Plus. I received the NEJE MF6 Manual Control Air Assist Kit for NEJE laser module-1.5mpa kit from NEJE & there are no instructions. I had someone 3D print the corresponding installation parts, but I can’t for the life of me figure out how all of this attaches to the LASER module. I’ve searched online, including YouTube, but can’t locate the answer. I’ve attached a pic of the kit. Can anyone help?

In order to have air assist, you need to:

1/ have a means of delivering air near the laser beam as it contacts the material.

1-a) this will be either a bracket holding an air tube that blows into the laser beam (hopefully slanted toward the material)

1-b) a nozzle that surrounds the laser lens, and creates a ‘funnel’ to blow the air down toward the material, following the laser beam.

2/ an air pump of some description (either an aquarium air pump, or a full-fledged air compressor with, or without a tank.

You seem to have a bit of air tubing, a shut-off valve, a coupling to an air source … and a few bits of a bracket that may hold an air tube and direct it toward the laser beam.

Basically, this does not show enough parts to install an air assist to anything.

1 Like

If you have downloaded and printed the air assist from neje wiki page there are a couple of picts that show you how install
Now i’m at work, later i take a pict of my installation and will show you. It’s not so difficult

1 Like

Oh, I see what this is …

1/ The orange ‘Z’ bracket will attach to the laser module, and the ‘pivot’ will hold the small tube.
2/ the metal (presumably) tube will fit into the air tube, and you can adjust the angle of the airflow to the work surface.
3/ then you have a shutoff valve, and a coupling to an air source of some kind.

(I didn’t notice the metal tube before … my apologies).

This could provide some form of air assist afterall.

1 Like

You will probably have to bend the metal air tube a bit to direct the air down to the focus point. You will need a tube bender to do this (a coil spring that fits around the tube and keeps the tubing from kinking and breaking).
Something like this:

1 Like

Since you’ve already had someone;

Why not measure your lens diameter, and ask him / her / them to 3D print you a ‘cone’ (or funnel) that surrounds your lens, drill a hole in the side, stick the metal tube in there, and call it a day.

That way you’ll have ALL the air available from whatever your air source is, blasted right into a chamber (funnel) and the only way out is to follow the laser beam to the material.

BTW: If you make it a tangible entry into the ‘funnel’, you’ll get a nice swirl effect on the incoming airstream, and have a nice little ‘tornado’ following your laser beam to the material surface.

Works GREAT! Ask me how I know … :sunglasses: :+1:

1 Like

Your Neje kit installation should look something like this…

and the following video has installation instructions starting at about the 8:00 minute mark…

An alternative if you have the Neje 30W or 40W laser head with the amber/red window is my air-assist nozzle design seen in action here…

You would print the appropriate nozzle (the 30W and 40W versions are slightly different) from here and replace the amber/red window on the laser module with the printed part. Plug in the end of your air hose from your kit. Use the valve (and coupler if needed) and hose… you wouldn’t need the metal needle or small printed bracket pieces.

– David


MUCH more elegant … but precisely what I was attempting to convey!

1 Like