About this 3D model

Turn your Prusa Mendel World upside down! And increase your Z-axis build space by 40% !!! I've been printing this way for over a month now. The stl and scad files below are for the 126mm tube that is printed in the picture. Here's a YouTube video of the last part of the print: http://m.youtube.com/watch?v=O6T0TAdobz4