How do I tell the Fab@Home what I want to build?

You need to provide the printer with a 3D model of the object you would like to build. You can generate the model using either 3D design software or a 3D scanner. The Fab@Home software reads stereolithography (STL) files, which you can export from programs such as SolidWorks, Autodesk Inventor, and CosmicBlobs. (see the Design Tools page for more information). Alternatively, a 3D scanner, such as David or NextEngine, can be used to scan objects to produce a model, which can then be converted into an STL file that Fab@Home can build.