While taking a class at Techshop, I set out to see if I could create 3D printed glasses. There are many ways you can approach 3D modeling and print. I decided to start by using a 3D scanner to get a model. I used the NextEngine 3D Scanner to capture a model of a generic Ray Ban sunglasses frame. A program like 123D Catch is a great alternative to those that do not have access to a 3D Scanner. The program allows you to take photos of an object and turn it into a 3D model.
If you need more info on where to get access to the tools I used check out TechShop.ws. I made it at TechShop.
Using the 3D scanner, I was able to get a 3D model of the pair of glasses I had. I have included a version of the STL file I used. The STL file can easily be open in 3D modeling programs.