K40 Air assist with Laser pointers
Description
This air assist helps, not only with the air jet that blows on to the part that is being engraved but also, keeps 2 laser pointers aiming at 1 single place. this helps not only with the place where the laser touches the surface but also with the focal distance. This is a remix from https://www.thingiverse.com/thing:4098748
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