Laser Alignment Tool for CO2 Laser Engraver Mirror Alignment

Great concept but did not do what it was made for. Maybe i just got a bad one.

No instructions on how to properly use the device to align the mirrors.

Doesn't work. The whole idea is to use this to align the mirrors, but at the end of using it the mirrors were worse than they were before using it. The laser was actually so far off that I had to do it over from scratch using the tape method to even get the laser to cut at all. Maybe the one you attach to the laser tube works better. I'm not sure I want to gamble away $160 based on how bad this one worked. I have zero faith in the products they sell.