This is the model from my Infini-D project, which can be seen here: https://www.youtube.com/watch?v=PebM2_jM6xc I printed this with black PLA. It was a couple of years ago, so I don't remember a ton of the details. I printed them with the "outside" of the box down which causes a lot of bridging, but I made the recesses deep enough that when you glue in the wooden verniers if you use a lot of glue and clamp it tightly the hanging bridge strands just act as good surface for glue. I used a fairly thick wood, maybe as thick as cereal box cardboard. I'm just quickly putting this up because a viewer asked for it. This takes this kind of brass hinge: https://www.amazon.com/gp/product/B07K71L7XQ These are the sphere magnets and the hold-the-box-closed-magnets If you build one be sure to send me some pics! It's annoying I can't upload .svg files to this site, so I've renamed them as txt.  Feel free to rename to .svg so you can open them. They're the top and bottom designs for the laser cut parts.