EDIT: FEB 2024 - ALL NEW IMPROVED EYELIDS!! Can now clamshell closed.
ALL STL FILES FOR 3D PRINTING. I love this robot. When I was modeling the parts, I put a little extra time into articulating the joints so they move and flex with the sliding sleeve. The parts colored in TAN can be replaced with PVC/dowels instead of 3D printed. The main neck is perfectly scaled to be replaced with 1i.d. home depot PVC. I trunkated the length on the 3D model purposely, but if you would like to build one to scale, add about 18 to the rear pipes.
The entire parts set is scaled with a 6" outer diameter 'eyeball' and the entire assembly is 37 inches long with the neck midway extended.