Squaring up a table leg using the 4th on my CNC
This is just a test table leg, I glued two 2x4 together and now I am machining a 3" square leg. The unique part about this is I am using all 4 axis's XYZ and A, normally you would only use YZ and A axis's.
X = Left to Right
Y = Front to Back
Z = Up and Down
A = Rotation