3rd mirror alignment is everything. Getting the laser to intersect the lens in center, at 90 degrees is by far the most important thing you can do to... | By American Photonics | Facebook
![LWCHJ Laser Path Calibrating Device Light Regulator Alignment Kit for CO2 Laser Cutting Machine to Adjust Collimate Laser (Size : Black) LWCHJ Laser Path Calibrating Device Light Regulator Alignment Kit for CO2 Laser Cutting Machine to Adjust Collimate Laser (Size : Black)](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/51kP1dpUt9S.jpg)
LWCHJ Laser Path Calibrating Device Light Regulator Alignment Kit for CO2 Laser Cutting Machine to Adjust Collimate Laser (Size : Black)
![DC - K40 Blog: Post by Nycon: How to adjust the mirrors for correct beam alignment in a CO2 laser engraver and cutter DC - K40 Blog: Post by Nycon: How to adjust the mirrors for correct beam alignment in a CO2 laser engraver and cutter](http://3.bp.blogspot.com/-cw4Z_ist2Cs/UR-iSaGv99I/AAAAAAAAAC8/sxYHlPzz1q0/s1600/1.jpg)