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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Cloudray Co2 Laser Tube 700MM 40W