:)Nice ref. Portal is a really cool game and universe and since Glados is an artificially intelligent computer system it has some resemblance to Mind1 of RebelNature. Mind1 sits in a giant metal sphere high on Rig21 and controls all functions and machines so basically the whole rig is a robot with the sphere as the brain. The arm shown in the drawing is a rough sketch of one of the arms that checks and builds other machines. Res holds the only ON/OFF button.