I’ve managed to complete the design to about 90% now with some tidying up and some support to add for the plastic parts.
The 2 DC motors are located in the middle body section as shown. They can rotate the unit 360 degrees. I made the change to this as I am planning to use 2 Adafruit type slip rings to allow this to be the case.
The RED board is where the audio amp and microphone pre-amps will be located along with the 2 motor drivers. Planning on using a NETMF device for this. G30 or G80 but not decided yet. The motors have encoders and the only thing I need to add to the design is on some zero point detection. Thinking I can just use a hole in each rotate part with an IR diode and IR LED looking through for this.
There is a Neopixel ring in the lower section and using a transparent or frosted material from Shapeways should make a nice light at the bottom for feedback.
The attached drawings are shown with transparent body parts to show the internal workings. The base is a chunk of stainless machined steel 20mm thick to give it some stability.
Appreciate any feedback or ideas I have missed out?