Another extruded aluminum Mendel derivative. This extruded aluminum frame is a quick upgrade to your standard Sells Mendel. It's better looking, roomier and, more importantly, more rigid. The most up to date files are over at the Github repo: https://github.com/Buback/Prism-Reprap. Just go there and hit the ZIP button over on the left hand side for the files.Instructions are posted on the Reprap Wiki @ http://reprap.org/wiki/Prism. The instructions are preliminary for now, but should be enough to at least give you an idea of how it all goes together.As always, if you have any questions, don't hesitate to ask.