[KenWittlief]

connect it to the shoulder?! (is this a trick question?)

remember that you are allowed to make your bot 5 feet tall - I would guess that for most teams, you will want an 'elbow' that attaches to framework just below that height, so your arm pivots from the top of the robot.

for what we need to do this year, you might not want an arm like a human arm, you might want something that looks more like a ladder, that attaches on both sides of the bot and pivots up and down - just a suggestion.