This college student used a 3D printer to make his own Invisalign braces. http://amosdudley.com/weblog/Ortho FYI, these braces cost about $8,000 in the states, but he made his own for $60. I imagine Invisalign and other manufacturers of "invisible braces" are not happy about this. One of the comments said that his process is actually very similar to how they make braces. They're just marked up severely. Nice to know. I hope it shakes up some things. I love to see people who just throw monkey wrenches in industries and then walk off. It's kind of funny.