I cannot remember where I found it, it was in a pdf file no instructions on how to build but I did find a web site some time back where someone photo documented thier build of it so I was able to use those pic's to build this... hence the reason it took 8 months because even with the pictures it was tough to puzzle out some of the parts and how to put them together.That's pretty awesome. It would be nice to have more data and build pics, as in where did you get this, or if you designed it etc. Awesome!![]()