The metal portion of the sculpture is made of 2 cast parts welded together: the robot and the sign. Originally, they were one part, however, when I broke open the mold, I found that only the base came out. I re-sculpted and recast the robot during the second pour. After chasing and cleaning both the robot and base using wire brushes (which wore out quickly), I got help welding the feet of the robot to the base.
I added a light liver of sulfur patina on the sculpture to change the color. If I remember correctly, a patina is a chemical that causes a controlled oxidation of metal to color and prevent the metal from oxidizing in an unwanted fashion.
I am quite pleased with the result, considering this was the first time I did bronze casting.
I will try to post some more photos of this piece when I find them.
Some people have asked me if this is an allegorical sculpture, but I assure you it isn't, as Al Gore has nothing to do with it.