Please watch: “Buildyourcnc CNC Router on Love Yurts” https://youtube.com/watch?v=90KkIO-67Qk –~– I briefly describe the laser optics used for CO2 lasers and the lens focal specifications and concepts to consider with the laser energy convergence after the lens. Another helpful video on finding the focal length of your existing lens: UCC7ifdmN7ebFo-eXBUZkeiw co2 laser #Select #Proper #Lens […]