Hi laser geeks. Can anyone tell me the focal distance for the standard k40

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(grahame dale) #1

Hi laser geeks. Can anyone tell me the focal distance for the standard k40 setup please, I have removed the table and am struggling to get the perfect distance :slight_smile: thanks

(David Wakely) #2

Hi there,

The focus distance varies from machine to machine. The quickest way to get the perfect distance is to get a block of wood and place it in the machine at an angle so one end is lower and the other higher then cut a line on low power. The part where the line is at it thinest and sharpest is your ideal focus height. Measure it and then cut yourself a piece of acrylic that height then you have a focus tool :).

Good luck!

(Jim Coogan) #3

For the K40 the standard lens is 50.8mm. Place your parts that distance from the surface when engraving and half way through the material when you are cutting.

(quillford) #4

It may be in your manual. The manual with the one I have says 5cm.