K40 laser machine lens setup calculator

Lens setup calculator

Our calculator help you set up your lens to material distance properly for the type of lens you use.

How to use
– Choose material thickness (in millimeters)
– Select the focal length of your lens (50.8mm is default K40 lens)

The results will show you the distance needed from underside of your lens – to material surface for both engraving and cutting.

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