... CNC Router SM-6040 Wide range of application: For advertisement engraving and cutting, stone processing, mold manufacturing,wood processing, craft manufacturing, light box ... sheet etc. Features: X Y use 2510 ballscrew and SBR25 rails , it makes machine working very stable. Aluminium casting whole body wont ... driver + mach3 parallel port or USB port hobby SM6040 router engraving mini cnc machine