A group of miscellaneous 3d printable designs written in OpenSCAD code
You can find more details about each of these on thingiverse; http://www.thingiverse.com/knick
Each design is controlled by several variables at the top of the file. You can preview the changes, or render a design into an STL file for 3d printing, by using the free OpenSCAD software: http://www.openscad.org