DIY 3D Controller

Step 2 Make the Plates

This sensor will work using simple RC circuits, with each circuit sensing distance in one dimension. I found that the easiest way to arrange three capacitive plates for this purpose is in the corner of a cube. I cut the corner of a cardboard box into an 8.5" cube, and then cut some aluminum foil to fit as slightly smaller squares. Tape on the corners keeps them in place.

Don't tape down the entire perimeter, we'll need it later for attaching the alligator clips.