Review on CNCOLETECH 18mm CO2 Laser Lens with 50.8mm / 2 Inch Focal Length - Ideal for CO2 Laser Engraving and Cutting Machines by Amanda Castillo

I bought a pneumatic assistant that allows you to use an 18mm lens, so I tried this lens, the price is decent and the performance. Didn't look much different than more expensive brands. Today I received mirrors from the same sellers. So I installed it on my K40 laser engraver and replaced the stock laser head with a new air cushion LO head, lens and mirror. At first I screwed up the alignment, but after some adjustments I set the power to 10% and tested on cardboard. BAMM! He cut through the cardboard in one go, leaving only a line in front of it! Who knows, maybe the alignment was wrong before but I definitely think the lens played a role, the quality of the coating on both the lens and the mirror is better than the drain. It's a worthy upgrade, now the markings on stainless steel are great and really help get the K40 in the first place.