k40 air assist nozzle
thingiverse
Air assist nozzle for k40 laser, takes 3mm bolt to clamp onto head. The nozzle tip is held in by friction. The hole at the end of the nozzle tip is very small, unless your laser is well aligned your beam will likely miss this hole, and make its own! The nozzle tip can be trimmed pretty easily to suit. I recomend printing with support material.
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