Lightburn Autofokus


First I apologize that my English is so bad, I have created this with the Google translator.

My name is Luigi and I’m from Germany. I have a 60 Watt China Laser with a Ruida Controller.

Since I do not like RD Works that much, I looked at Lightburn, so I’m very happy with that. Unfortunately, I can not get the autofocus running.

I connected a limit switch to the CNC3 axis, Z- to GND. It worked that way for RD Works too.

If I now press Focusb in Lightburn, the Z axis moves up to the limit switch but does not stop and has this break pressed. Does one have an idea what I connected there wrong?


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