About this 3D model
my take on the cube spinner design I thought they miss a lot of inertia when only made of plastic, so I added steel balls to all 8 corners It got a nice weight to it now! 13 mm steel balls are used, and one standard 608 bearing you need 2x "Mainbody_half" and 2x "Cap" mainbody needs to be glued together after inserting the bearing caps need to be glued together balls should snap in place my printed version was not perfect, as you can see on the pictures, but I changed some things in the files to enhance printability for you model units are [mm] added "_simple" models without the recess on the cubes sides, if you like the clean look added "_inch" models with pockets for 1/2" (12,7mm) steel balls