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Been a long time since I put this up. I have made an adjustable z axis bracket for my laser engraver. The first pic shows G2 lens where I was making focus lines. I was at 32 mm from the balsa and I couldn't get a thinner line. The line to right is barely visible but it was at 65mm with a 3...

I'll try that.....I had to use plumbers tape to tighten the lens thread so it doesn't jump around as you adjust. It is not the easiest thing to do with it set up on the machine. I try to focus at lower than 100% closer to 30% power because it burns thru what I am focusing and hard to see when...

I have a pair of these: OD5+ 190-540nm&800-1700nm Laser Protective Goggles Glasses CE Eaglepair EP-1-9 . It is still hard to see the best focus but with the index cards I have imperical proof in that the line gets thinner and starts cutting thru more than one card. Then at that setting I play...

The numerical aperture is .5 for the G2 that I have. I have a hard time with focusing precisely visually so what I do is stack index cards to the exact height of what I am going to cut then I run focus lines adjusting a little each time until I get the finest line possible. This seems to...

I am using an aquarium pump with a small aluminum tube aimed at where the laser hits the material to blow away soot and smoke. I can also hook it up to an airbrush pump if I need more air. I think what I will try is different elevations on the material with it focused and set my material on...

I guess I wasn't clear. The specs on the lens gives a focal length which is: AixiZ G-2 Collimator Working Distance: 2.357mm (C/G Inclusion) Effective Focal Length: 4.02mm I am assuming the 2.357 is the distance from lens to laser? With the lens I have now the distance from the end of lens to...

Thanks for the greeting......this seems like a active forum with a lot of knowledge. Not sure how many of the members here are using their lasers for cutting as I am but a lot of the information will be helpful.

I have a EleksMaker Laser A3 2.5 watt laser engraver that I use for cutting balsa and occasionally 3mm plywood. I got an after market glass lens that works pretty good....can cut 3/32 balsa easily and 3mm plywood in 5 passes at 100mm/min. A while back I purchased a G2 lens and I realize it has...

Hello. New to forum but not to laser. I build model airplanes and use a laser engraver to cut balsa wood. I have a 2.5 watt Chinese laser from Banggood and after the learning curve I am getting pretty good results. I bought a G2 lens a while back and am doing some research on it presently...