I am looking for someone with mechanical engineering background who can assist me in making some calculations. I have an aluminum tray that is connected to a tripod and that supports a laptop. I want to get a lighter and smaller aluminum tray that can accommodate a tablet, but I don't know exactly how small and thin I could get it. I have spent countless hours attempting to find the answer and I asked a version of my question in both the physics and engineering sections of this forum but no luck. I tried to use a free fea cad program but it was a bit too complicated for me. I'm sure that an engineering student could easily figure this out and I would be willing to hire one for a reasonable rate. Better yet would be someone willing to volunteer a little bit of their time. I don't know how complicated this is, but I'm guessing that it shouldn't take more than 30 minutes to make some approximate calculations.