Simple expandable 4 axis CNC (6 printed parts)

- These stepper motors have been modified to be Bipolar (see instructables or you-tube)

- Using a CNC arduino shield to control steppers (one stepper slaved to y axis for rotational milling)

- Using GRBL controller software (open source)

- The x-axis is suspended from the Y axis.

- You make your own pen holder or milling head.
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Contents
Instructions and Parts list: 1
Instructions: 1
Linear bearing 1
Guide rods: 2
10x24 long coupling hex nu