K40 50MM Laser Tube Shim

thingiverse

This is a tube "shim" I made for my Omtech K40 laser, it raises the tube .1875" so that a 50MM tube fires into the "middle" of the mirrors, vs some funky angle as the 50MM tubes sit differently than the stock ones. Do note that this may not be the exact height for your laser, but hopefully, it gets you within the ballpark that you can shim accordingly. I did mine in TPU to avoid cracking the laser when I tightened the tube clamps down.