This was created in FreeCAD (http://freecadweb.org/) to fit ISO4762 Hexagon Socket Head Cap Screw which you can get in the Fasteners WorkBench (https://github.com/shaise/FreeCAD_FastenersWB). As the holes are not tapped, their diameter is 2.5mm as opposed to 3.0mm so as to fit an unthreaded M3 screw.
- Product Page
- http://www.parvumsystems.com/product/modding-cube