WOAH! thats magnificent, looks like it might burn a hole in my wallet though.
I would have been the poor man and just ordered the ring and CNC milled it myself.
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2007 Rockwell Automation Innovation in Control Award winners (Southern California Regional)
Crescenta Valley High School Team 589
http://www.arkorobotics.com My Blag
3.141592653589793238462643383275902884197 <- Current memorization of Pi
Callsign: N6ARA