STL: https://fab365.net/items/620 This model is an upgraded version of the R2-D2 model designed by GOODesign three years ago. Key improvements to Foldable R2D2 include: 1. We created a sturdy support on the outside to prevent the arm from shaking. We also created supports on the inside of the bottom. Now, your arm will never fall off the bed. 2. It is designed to be color-coded so that various parts can be printed and attached separately according to color. It's a bit of a hassle, but the finish