Could someone post a youtube video of how you do a bit change in the middle of a carve using the openbuilds control software? I am a visual learner and videos help me understand it better. Thanks
Export each toolpath as its own gcode file Reprobe/Rezero Z only after changing the bit. Do not click SetZero XYZ to ensure XY stays where it was when you ran the first file. Run each tool as its own file just like you would a single tool file.