ErnieKey writes A man named Eric Harrell has reverse engineered a 5-speed transmission for a Toyota 22RE Engine, and 3D printed an entire working replica on his desktop 3D printer. Even though it is made up almost entirely of plastic, he says that it could function as a replacement for the real thing. In all it took about 48 hours of print time, plus many more in order to assemble the device. He has made the files available for anyone to download and print themselves for free. Read more of this story at Slashdot. Click here to read full news..