... support all plot sofeware:AI,CAD,CORELERAW;7.More Interface:USB,SD card,serial Port,blue teeth or ... speed ,big power step motor,micro step driver;11.Contour cut:when used with sofeware FLEXI(Model no. with L has this function ... touching screenDriverleading shaft, high torque motor and micro-step driverlocating systemPrecise electronic limited interface system and arbitrary original setting systemMax ...