CO2 Laser 25mm Mirror holder / mount with adjustment.
thingiverse
This is a standard part for any CO2 cutter /engraver. The mirror holder allows to install a 25 mm mirror and provide 90 degree reflection with adjustment capability. To adjust mirror angle 3 mm screws are used. They push against the main block. To not push against plastic, short 3 mm screws should be inserted into main block. This part was copied by me from a no-name Chinese mirror holder ordered on Aliexpress. I have not tried it in a laser cutter yet, and I don't know if ABS plastic would work, because all mirror holders sold online are made of metal. I was told, provided the mirror is clean, it should not heat very much. The part can be cut from aluminum too, I think. But I'm not sure how to cut the main block on a 3-axis CNC router, I'll give it a try later. Also included are mounts to fix mirror holders on the laser cutter. Mirror #1 (closer to tube) uses 12 mm threaded rod and 12 mm nuts. Enjoy!
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