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 pico projector.I printed these in a config so I could have 2 sets of vertical supports as DIY projector screens I often see online are saggy in the middle but you can do this however you want, Im not your mum.I made these to use 20mm electrical conduit which is fairly cheap and light, so each slot is setup for a 20.4mm hole so these are a very tight/firm fit but they will fit (though that last one I had to use a hammer and a piece of wood to tap it down as the conduit kept turning in my hand as