I've been working on a project that required the use of a solar panel. I needed a way to mount the panel to a metal pole and hold it at an angle. You can buy one easily enough but why do that when you have a 3d printer?

You'll need a couple 1/4" bolts, washers and nuts plus a U-bolt if you plan to attach it to a pole. I'll upload a few more pics of how it's attached later as it's hard to describe. In the mean time, I was able to find a picture on the internet of a similar item made from aluminum that kind of shows how it is attached. The lip of the panel is sandwiched in between the base and the plate and the two bolts are tightened down.

Print at 100% infill to make the part as rigid as possible.