The design is completely printable without need for supports, or a raft. The screw should be printed on its face, to prevent overhangs. This was actually printed with a Printrbot Play, but for whatever reason, that doesn't seem to be one of the options when you choose a printer. This is my own design, but I wanted to add settings. When printed, it does slide together nicely. After a while of use, the areas in contact do smooth out even more, especially when kids play with it every day. I printed these in two prints, as shown by the two colors. Makes for a fun fidget toy!