Collapsible Projector Screen

Edit: I had to make a little frame stand to support putting a small solar panel in a garden bed so I needed to make a joiner to make slightly weirder joins/angles. So I thought Id update it into here in case it helps anyone. Same basic design as the others in theory it just is more like the T joiner but smaller Honestly this can be considered anything you want to connect 20mm conduit with to make a frame for, I just happened to have made it for a portable and collapsible projector screen for my