This is a fullsized model of a classic lightbulb with E26 1/7 inch Edison screw. Two versions: solid and hollow (2). Moreover here is a molding parts to make a caramel lamp. How long haven't you seen your doctor? :) Molds still haven't been checked IRL, so there might be some collisions. It suppose to contact with food and because of that you preferably should use PLA for manufacturing. UDP 14/03/15 To prevent sticking to surface use oil before injecting melted mass and try to cut off all sharp edges and fibers inside mold. The height of centering pins is more than the height of holes in the other side because it was calculated in summ with the thickness of forming plate. You should press down it by the second half of the form after putting caramel inside. However with two spacers you can make the both halves of lightbulb at the same time. The excess will flow outside through the side holes.