For better overview please read 3dprint.com article about moidules! http://3dprint.com/49932/moidules-3d-printed-shelves/ Moidules are 3d printable connectors for creating your own custom made shelving system at home! Here you can find the original set of 6 moidules in stl. -format and a catalogue with information and instructions. With Moidules you can basically custom make your shelving system for any space or purpose. In the catalogue I have 3 example bookshelves just to give an idea of what you can build with moidules. This original set works best with small/madium sized installations. This original set of moidules is to use with 9mm board. Click here to find moidules options (with screw holes) for 12mm board ---> http://www.thingiverse.com/thing:725671 Click here to find moidules options (with screw holes) for 1/2 inch board ---> http://www.thingiverse.com/thing:736398 For tiny/small installations I uploaded also set for 1/4 inch board. ---> http://www.thingiverse.com/thing:736403 (If you want to build sturdier and stronger shelf I recommend using 9mm, 12mm or 1/2 inch board.) Tons of other great upgrade suggestions (like option for back panel, wall mount, drawer) on the list. I’m waiting to see pictures of assembled Moidules bookshelves from around the world, in new colours and new designs, and I hope other designers get inspired, create and share accessories and new types of Moidules to let the project I started begin to have a life of its own! ps. I dont recommend using very long boards as when unsupported they tend to bend in the middle if heavily loaded. With tall installations I recommend adding X-shaped structure to the back side to make it more steady. If somebody has time to model accessory for this that would be awesome!See the catalogue for more instructions and information! 3dprint.com article about Moidules: http://3dprint.com/49932/moidules-3d-printed-shelves/ More pictures, stories and information on Moidules Facebook site: https://www.facebook.com/moidules