This is a fix for the Ortur laser master 3 air assist problem. The stock air assist causes smoke and soot to build up on the lens. Eventually causing it to crack.

Here is a link to the 3D printed part needed:
https://www.thingiverse.com/thing:573...

Aluminum tubing:
https://www.amazon.com/dp/B000H5OGM6?...

Push connector:
https://www.amazon.com/gp/product/B07...