This Radar is the latest version and is what is going on my replica torso. It is correctly sized to fit the replica collar and Torso. (the club collar is 4″ thick the new size is 3.625″ thick (and a little narrower). As you can see with this picture, the clutch pack has a tapered top. A top view shows a milled out key area for the bubble lifter (never mind the slight dent off to the right of the key – it was a mistake but it will be covered up with the bubble lifter boot cover so it doesn’t matter. Also note the 2nd half of the radar has upper and lower base plates where the ears are inserted.
And of course here is the Bubble lifter tube with the key inserted. I have included the drawing
so you can assemble your own.
I also experimented with IR (infrared) sensors in the collar to direct movement of the radar when the robot is in animatronic mode to further simulate AI (artificial intelligence). The device I used was from Jim Shima’s website called Hyperdyne and Hotcranium.com. These are the same controller cards that the R2D2 group uses for automatic dome rotation in relation to sound and IR movement detection. It works most of the time so long as you are not in a very loud or hot room. That is not always possible at a convention. Also, since the detectors are in the collar you have to be at least 48″ tall for it to detect you. So what I decided to do was put in a IR detector in the rear vent bay to detect those pesky little carbon based replacements we call children. When it detects someone close it triggers a voice message saying to please stand clear and to step away from the rear vent and power pack.