Tri-Spinner Fidget Toy 4mm BBs Only
Made my own version, only uses 40 4mm BBs common for bb guns. Pause print at 4.6mm or 4.8mm z and insert 10 BBs into each groove then resume. Holes are 8mm and may fit original caps but I've included my own cap. I've included a slightly larger version as well as a slightly smaller version. I've also included a version with balls in it, if you can get it to print ok than awsome. Some notes, if your fidget comes out too stiff try printing it larger by 1% increments until you get it smooth and vice versa if it's too loose. You can also try spinning it for a while with a drill and see if it loosens up.