Making Everything 3D-Printable
UPDATE:Unfortunately this service is no longer available.
One of the hardest tasks with 3D printing with SketchUp is often making something that has not been modeled properly 3D printable. This means that whatever geometry you are given needs to be turned into a "watertight" or "manifold" solid. In SketchUp there are a bunch of extensions that help with this task (namely Solid Inspector and Solid Solver). But even they can't automatically fix a model like the one shown in the 3D viewer and images below. Fortunately for us, SketchUp and iMaterialize just announced a solution that is baked into 3D Warehouse.
An Example
As you can see, this model is an intersection of three shapes (made without using SketchUp's Intersect tool), where I removed two faces and introduced a small triangular hole in one of the faces.
I then uploaded this model to the 3D Warehouse the usual way (File > 3D Warehouse > Share Model...) and made sure the checkbox at the bottom was checked.
After a...