After watching the dedication services live on TV, I went online to search for a 3D Model of WTC to print. I was shocked that there were none on Thingiverse. We must never forget this fateful Tuesday morning where over 2500 Americans lost their lives to acts of terrorism. This is my contribution. Unfortunately I had some issues with exporting this model from Sketchup to STL. I made multiple versions, with and without the WTC 2-6 and many other variations. I am going to try and export.