Fully-functional, 4-pin, double-jointed door for bank vault

I've been sitting on a prototype for this for about 4 years now, but over the weekend, I sat down and finally cranked out a fully-functional design. I've still gotta add the back side to the room, but the important part is finished, and I am very glad with the results. submitted by /u/maxguy274 [link] [comments]