This was my second atempt to make a mobile claw. It used the same drive base as version 1.0, but this version also featured
a touch sensor on the tip of the claw to detect when it had grasped an object.  This touch sensor was well nigh usless though,
as it wouldn't read unless the two "fingers" clamped together.  I also had a touch sensor on the wrist to detect when the claw
was al the way open.  

This version also had the ability to rotate the entire claw/arm.  Unfortunatly, I had no turntables at the time, and consiquensialy, 
all the wires running to the touch sensors and claw-motor, got tangled when rotated more than 90 degrees.

RCX 1.0 1x
Motors 3x

Sensors
touch 2x
Rotation 1x