I have always wanted to build a giant remote control arm but I never could since I only had the NXT set, But now since I have gotten the 8043 excavator I took a crack at it. After about 2-3 weeks of building and fine tuning I finished. I came up with the name ROTA (Remotely Operated Technic Arm) The programming took an additional day, shortly after I took some videos and put them together so here is the video explaining all the mechanisms:
Pictures can be found here: http://nxtgeek.blogs...11/rota_12.html