This Operating 3D-Printed Engine and Transmission Will Amaze You [VIDEO]

Remember Revell’s old “Visible V8” model kit? This is even better. Fully 3D-printed and motorized for full crank-turning, piston-pumping, valve-lifting action, the lift-apart engine makes it easy to see the workings without turning a wrench. Builder Eric Harrell didn’t stop at the classic Toyota 22RE engine—he built a functional transmission to go with it! See it action now.