Posted at the end of September about finishing off a part built Rockcliff moving gantry design that I bought on ebay. As usual thing got in the way and only the last couple of weeks have seen it in running order, not finished you understand but working. I had no trouble with the mechanics and the electrics were fairly easy(arduino uno, protoneer cnc shield, 4 A4988 drivers and 4 Nema 23 motors). My problems start with my lack of knowledge about g code, everything I try to cut is back to front and a mirror image of what is on screen in UGS or Grbl Controller also I don't seem to be able to know where the job is going to start despite setting all axis to zero and positioning the router to the bottom left of the bed (1000mm x 500mm). I generate the g code file in either Easel or JSCut. Any help would be greatly appreciated