3D printing is taking off, if one believes the signals seen this year. Another milestone was reached last week by popular repository Thingiverse, who declared they now have over 100,000 3D models available.
Thingiverse also released several interesting statistics. Apparently the number of models rose by 20,000 in just the past month. At this rate of increase the site will hit a million 3D models in a year or two. They also say they've had over 21M downloads.
When launching a 3D model repository the first challenge is simply to attract enough 3D models to make the site popular. Thingiverse now must move on to the second challenge: searching and categorization. When there are so many models, how will visitors find what they want?