I was wondering if anyone has made a 4th axis design or concept for these diy wood cnc? I am in the process in building the jgro cnc, but I want to incorperate a 4th axis. My goal is to be able to do inlaying or carving on items such as pool cues, gun stocks and well anything really. I was also hoping to one day....way way into the future in trying to build my very own pool cue using the 4th axis method. I do know that building a pool cue is more then just slapping a piece of wood on the cnc router and letting it go. But I like to plan just a bit for the future as well. So......is there any diy 4th axis out there??