OK, time to add the motors to control the head and neck. These are simple surplus 12v motors with a simple machined cam to rotate the head and neck to simulate a coordinated movement using the push rods. When they move they trigger a limit switch set for “normally open” and that sets off the CF3 sound to play a series of phrases from Star Wars to entertain the kiddies…… Very simple, very easy. All initiated with a 4 channel remote. I use a Radio Shack microphone stand as the support for the droid.
The first thing I had to do was to cut an access plate to the neck bar so I could mount a control rod and motor mount plate so the head and neck could move whenever I wanted him to talk as they did in the movie. So with my trusty Dremel tool I cut out a small rectangular access plate behind the neck brace which is hidden behind the neck yoke (mostly). I then mounted a secondary plate for the motor push plate for the control rod to control the head movement much like the elevator control horn controls the elevator on an airplane control surface. I then installed the clevis head and control rods along the neck brace to hide them from plane site