Be helpful 👍

  • 24 Posts
  • 10 Comments
Joined 1 year ago
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Cake day: June 20th, 2023

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  • Did you ever find the answer to your question?

    It will depend on your lenses and their corresponding focal length. Normally for cutting you want that focal point to hit halfway through the thickness of the material you are cutting. For etching slate I would put that focal length right at the surface.

    The standard focal length for a k40, which is the laser I use, with the stock lenses is 50.8mm I believe.