Welcome to Our Community

Some features disabled for guests. Register Today.

Laser lens diameter

Discussion in 'Laser Cutters' started by Shearder, Mar 26, 2019.

  1. Shearder

    Shearder Well-Known
    Builder

    Joined:
    Aug 20, 2016
    Messages:
    16
    Likes Received:
    5
    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
     
  2. Giarc

    Giarc Master
    Moderator Builder

    Joined:
    Jan 24, 2015
    Messages:
    1,164
    Likes Received:
    609
    What laser do you have?
     
  3. Shearder

    Shearder Well-Known
    Builder

    Joined:
    Aug 20, 2016
    Messages:
    16
    Likes Received:
    5
    I'm building a new 50w co2
     
  4. WildBill

    WildBill Veteran
    Builder

    Joined:
    Feb 4, 2017
    Messages:
    52
    Likes Received:
    39
    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.
     
  5. Shearder

    Shearder Well-Known
    Builder

    Joined:
    Aug 20, 2016
    Messages:
    16
    Likes Received:
    5
    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
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice