Step 3: Y Axis

We are calling the middle ring the "Y Axis".

The width is the most critical dimension - needs to fit the X Axis with just enough clearance for the servo and for the axle. The length needs to leave enough clearance for the X Axis to move freely as it rotates. Ours is about 11 1/4 inches x 12 inches.

As with the X Axis, we used a small plate to join the YAxis, added an axle, and a servo horn.

The main difference is that we need to mount the servo that actuates the Z Axis, and we inset it at the point that centered the X Axis inside the Y Axis. Once we lined that up, we also drilled the hole for the X Axis axle/pivot to fit in to.



















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