The 8770 kit includes Sherline's 8760 4-axis driver box and power supply plus three 67127 stepper motors. Plug the 25-pin parallel cable (included) from the driver box to the printer port of your computer. Attach the stepper motors to the stepper motor mounts on the X, Y and Z axes of your Sherline CNC-ready mill and plug the X, Y and Z cables from the driver box to the stepper motors. Once you select and install your own control software, you are ready to go. If you want to add a 4th axis rotary table, purchase P/N 8730 rotary table with stepper motor and plug it to axis A.
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