But here is the problem with Thingiverse: even if you would like to get away from using this Makerbot service, it’s still the largest collection of 3D printed objects on the Internet.
Thingiverse was launched in 2008 by Makerbot Industries and has become the biggest collection of free 3D model files in the world, with over 1.4 million options available.
OpenSCAD is a great way to create objects for 3D printing (or other ... applications outside of Thingiverse and offer them for sale or let them send the completed files to a service bureau.