... linear square orbit . 2.Whole seamless steel structure Heavy Stone Engraving Machine CX-9015Feature:1.X,Y,Z three-axis ... good rigidity, the machine can bear 1MT weight at least.3.Constant power spindle and motor,hightly cutting capability ,high efficiency ... .Well compatibility, compatible sofetware CAD/CAM, such as Type 3, Artcam,Castmate,Wentai,Coredraw.5.Double direction cutters cooling system ...