How do you adjust a laser focus?
need some help on this!
The focal lens will dictate the focusing of the laser, the standard focal distances are 1.5", 2", 2.5", 3" and 4". Make sure to check the actual specs of your focal lens. It will give you the recommended distance. You can either do a manual focusing check where you bring your matrial all the way up to the nozzle and pulse the machine. You will then lower the bed/material by small incremental steps and pulse the machine after each step. You will then be able to see how the distance affects the laser spot. Once you see that your laser spot is small and sharp, you will know that it is focused.