Hey guys I am wanting to order a laser head. Now I'm going for a 2 inch focal point for middle of the road stuff for now. BUT, I am not sure on diameter of the lens. The options are 12mm or 18mm or 20mm. What do I select and why? I have searched Google but I cannot find a definitive reason to choose one over the other. Please help. TNX
I have all those sizes and they all work because I have 4 laser cutters. What you need is to find out - what size lens fits the head you plan to use.
Thanks for that response. I bought a full kit with head and mirror holders and mirrors and 18mm lense. I wasnt sure if there was any advantage either way so I went middle of the road. It's a new build so i guess like the cnc and 3d printer there will be some trial and error
