This is very cool (and nice job!) because I'm planning to build similar 3d printer + laser engraver machine in the future. Problem I'm facing is that how to drive the thing. What I understand (please do correct me if I'm wrong) is that no normal current 3d printer software can handle both at the same time (switching between i.e profiles to choose laser or 3d print) ?
What software do you use to drive your machine? Do you have to use 2? Can you plug the laser module in the extruder board or do you have to have totally separate extruder for each?