I’ve been using one of these Auto Focus sensors for a while now (the red pen looking thing in the photo below). It’s a simple limit switch. I tell the machine to focus, the Z table moves up until the tip touches the material surface then moves back down a set amount to set the focus point to the surface of the material. Then I feed the material offset (in or out depending on cutting or engraving) into Lightburn. I had it setup (probably incorrectly) in V8 but it was working for me. I updated to V9 and I could no longer get Auto Focus to work. So I downgraded back to V8 and have been using it since.
Fast forward to yesterday and I “upgraded” my laser controller from RDC6442S to RDC6445G. This includes a new keypad with a Focus and Z up-down buttons instead of having to navigate through the menu. This is great but my Auto Focus settings from before are no longer working. I’ve transferred my vendor settings over from the original controller. I click the focus button, the laser sets the correct focus height but the Z axis no longer responds to the Lightburn offsets when running a job. So I tried the latest V9 software thinking maybe I need a newer version Lightburn for the newer controller but unfortunately it doesn’t make a difference.
What would be great is if there was a guide somewhere that shows the correct way to setup Lightburn w/ these simple Auto Focus sensors. I really would like to get the new controller working along w/ updating to the newest Lightburn software but can not without a functioning auto focus. Please help.