Ok guys, I'm having a bit of trouble. I've included a few pictures to go along with this post. First of all, the blue area in the pictures is the body of my robot, and the pink/red/light pink thing is the holder for my PDA. I want it to hinge up so that I can easily remove my PDA if I need to, except I can't figure out the hinge. Obviously there's going to be a gap between the holder and the body of the robot, but that isn't incorporated in my CAD drawing. So here are the pictures.
This is the body with the holder closed. From the side. (Some side panels are hidden)
Again another pic with the holder closed. As you can see the top is flush with the body.
Top view of both.
This is how I want the holder to open. (Or something like it) The problem is that this wouldn't be possible, as the body and holder are overlapping at the top left hand corner of the holder.
Another view of holder open. As you can see the holder's hole is easily accessible for me to remove my palm.
I plan on holding this "door" shut with some magnets. (Yes I know aluminum isn't magnetic, I'm making holders then just putting circular magnets in them.) If you have any better ideas for holding the door shut please let me know. I'm planning on having a spring to hold it open (but not prevent it from keeping closed.)
Here is a link to the sketchup file. http://www.box.net/shared/1kd59nyhtq
EDIT: I just realized it doesn't have to rotate. I could simply push the whole holder up. That'd probably be a little easier. Let me know what you think.