This is the result of my reverse engineering project in PLTW's Introduction to Engineering Design. I spent a long time getting everything just right, and I think it came out well. Theoretically, you could print these pieces out and combine them with the core/screw/spring kits you get from websites like speedcubeshop.com and it would work just as well as the original. Pretty cool. Probably shouldn't allow it to be sold so I don't violate copyrights and whatnot.