... size numerical control devices such as curving machine, CNC machine, computer embroider machine, packing machine and etc.FEATURESl High performance, low pricel ... and direction signal of the Stepper or Servo driver , can control the lathe and milling machine to work the ... of the speed of the spindle the dimension: 170mm*115mm locating hole: 119mm*101mm 3Axis Nema34 42 7A Stepper Motor Driver CNC Router ...