About this 3D model
Due to the previous design being extremely brittle, a fella in one of the Google groups recommended trying to break the design down into separate pieces. It works like a charm!! The three piece design is pretty solid. I used 75% infill and 2 skins. A dab of super glue to hold everything together and wa-laa! This thing was made with Tinkercad. Edit it online https://tinkercad.com/things/japlYdYEjpF