CO2 Laser 25mm Mirror holder / mount with adjustment.

thingiverse

This is a standard component for any CO2 cutter/engraver. The mirror holder enables installation of a 25mm mirror, providing a 90-degree reflection with adjustable capability. To adjust the mirror angle, three millimeter screws are utilized, pushing against the main block. For this reason, short three millimeter screws should be inserted into the main block to avoid pressing against plastic. This part was replicated by me from a no-name Chinese mirror holder purchased on Aliexpress. I have not tested it in a laser cutter yet, and I am uncertain if ABS plastic would function adequately, since all mirror holders sold online are fabricated from metal. However, I was informed that provided the mirror is clean, it should not heat excessively. The part can be cut from aluminum as well; I believe this to be true. Nonetheless, I am unsure how to cut the main block on a three-axis CNC router, and I intend to give it a try later. Additionally, mounts are included to secure mirror holders onto the laser cutter. Mirror #1 (located closer to the tube) utilizes a 12mm threaded rod and 12mm nuts.