![]() ![]() Before now I thought it would be a matter of me learning more about the machine and optimizing things (focus alignment, speed, power, air blowing etc). The first lens was ok with cutting this stuff but not amazing. I did not realize that the machine has come set up with the smaller focal length lens just out of ignorance. Its my understanding that longer lenses are better for cutting and so I have installed a 100mm lens that I plan to try. 25 inch cork with this 38 mm lens (with my 100W machine I was running at 70-80% power). Is it more necessary with certain types of materials?įinally, I was trying to cut. ![]() How much does that impact the chance the lens would crack? I saw in one post that someone recommended checking ones lens every hour or two while cutting (that seems really frequent. So, aside from my guess that the grime that had built up might have caused the crack, I was wondering what other things cause this? Is it more common when operating the laser at higher power? Is it more common if the laser is not perfectly aligned (mine was not, off by a little)? I also ran the machine without air blowing when I was engraving (but always when I cut, which is what I did 80% of the time).
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