Automated cat feeder.Using tunell's idea as a starting point, I documented/experimented with different designs. This is the result of many trials...This is semi-parametric; mostly hardcoded numbers all over the place as I tweaked and got lazier.See the prototype in action (http://www.youtube.com/watch?v=V7uvNemqq40)! See the running machine (http://www.youtube.com/watch?v=D2iBL80wffA)!A simple/slapdash MDF housing to hold it all. The tube is held in by friction at the moment...This relies on the Thread_Library (http://www.thingiverse.com/thing:8793).Acquire:Construction:Attach the servo horn (X-shaped) to the "screw". If you can't reach the holes, apply power and rotate the servo; there should be enough of a gap in the "tubemount" to reach. (I used #2 brass wood screws.)Notes:To Modify: