Leonardo da Vinci's self-supporting bridge (parametric)
thingiverse
This gives you the basic parts to build a self-supporting bridge, as conceived by Leonardo da Vinci. For a simple bridge, 5 notchless and 10 notched beams are required (single stl files provided). Print more to make more elaborate designs (and please post images of the results!). You can play around with the dimensions and proportions in the supplied SCAD-file. You can find a very nice animation of the assembly of the bridge on http://www.giocomania.org/pagine/15587/pagina.asp (the dimensional parameter values in my SCAD file were taken from this site as well).
With this file you will be able to print Leonardo da Vinci's self-supporting bridge (parametric) with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Leonardo da Vinci's self-supporting bridge (parametric).