[Ari Allyn-Feuer]

Sorry about the confusion (Jake, you can't write.).

The "arm" is a forklift, which uses a two-stage rack and pinion system to lift first an arm extension and second a trolley with a grabber. Each of the two parts is powered by a separate RS-540. With a tilter mechanism to reach those last few inches, this forklift will be able to hit all three levels with aplomb, and with both motors running can move up and down at 30 inches per second.

The sweetest thing is that the whole works starts out folded back to a hair under 4' so we can still stay in the 120 pound weight class.

Ari.