Thickness capability for 40 laser - K40 Laser - Maker Forums
The typical lens in a K40 is a 50mm lens; that is, it’s 50mm from the bottom of the lens to the focal point.. The beam is a few mm wide when it enters the lens.. Note that most of the height between the lens and the focus point is hidden inside the nozzle.. Therefore, if you were cutting 40mm perspex, the beam when it exited the perspex would be ..