I had never done any angled cutting on the table saw so it was a bit tricky to get the right measurements at first, but with a little experimentation, I got exactly what I was looking for. It's really satisfying to work with wood, you can get such precise results relatively quickly if you have the right tools.
Drilled the holes for the wire to go through and made sure to attach the laser cut pieces to separate the four "buttons."
Finished the copper strips with a 150 grit sand paper. I will have to seal these with a spray acrylic to regulate the capacitance.
Just waiting for it to dry now.....