Hi Bob, I had some similar problems. I too use Open Builds, but fo rmy CnC; then added a laser module. All worked great in OB but Lightburn was a different animal. I had all kinds of directional and homing issues. I can’t actually help you since I just followed directions that the Lightburn pro helped me with. However, it may help to read his instructions. Now I love lightburn! Here’s the link in case you want to give it a try. (Keep in mind, his instructions were for my GRBL settings) Jog movements works correctly on LaserGRBL and OpenBuilds but not Lightburn
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