Epson projector mount with quick release

I needed a projector mount and because each projector is so unique I just designed one. I used (https://www.thingiverse.com/thing:2258657) as the basic idea and went from there. My printer wasn't big enough to print the whole plate so I had to print it in two pieces with a third to reinforce and connect to the rest of the structure. I wanted a quick release so I could easily connect and disconnect the projector so I wouldn't have to readjust it every time.

I used:
4 M3 screws, nuts and washe