here's the pic
http://www.chiefdelphi.com/media/img...7ba7059d_l.jpg
So is titanium(Grade 5/9) lighter than aluminum? I thank you all for the advice, we want to use titanium or carbon fiber for the fingers on the hand ( the part where the ball rests). What do you guys think? Also you have to consider the fact that at San Diego our robot hand got pounded and is bearly in one piece and that is why we want to upgrade. That is why I asked if titanium or carbon fiber flexes.