basic hinges, designed to support second screen on top of laptop. (similar to a youtube video of DIY second laptop screen where he 3d print the hinges. I was unable to open SketchUp file so designed them myself).

Note: hinges rotate 360, so use thigh bolt to keep screen in position, I used double side tape for the base and made holes for a bolt to the screen. Design was quite fast so will probably improve in the future. thanks.