I love the grabber, is that timing belt that moves the grabber wheels? Its hard to tell, even when zooming in all the way
I also like the surgical tubing pulley system for keeping the igus chain in the back of the tower taunt, very clean and creative.
Seems like the grabber is pretty heavy, myth or fact? In any case, excellent robot once again, if there is one team that's perfected the telescoping arm, its you guys. Can't wait to see video of it.