Aquabot mold (cerby's crawlers 02)

thingiverse

This was my test mold for oogoo tests (oogoo is silicone caulking and cornstarch mixed 50/50 or less starch )http://www.instructables.com/id/How-To-Make-Your-Own-Sugru-Substitute/ if you print it and cast, there are no allignment holes, so you need to use a flat surface to line the sides up. It cast pretty well and was a good mold to learn some about oogoo casting in ABS. not a derivative but props to jasonwebb for inspiration with this thing: thingiverse.com/thing:31581 Instructions print in ABS for the molds, I have not tested oogoo in PLA. I used a 10% infill and the finer a slice the better. Also i have found that acetone wash on the mold cavity makes a smooth surface which looks great on the castings. casting process: fast cast: mix your oogoo and pack the mold halves place copper wire in the center of the arms and legs for the arms i make one wire hand to hand thru the torso. to center the wire place a few beads on the ends and middle of the limbs (size of beads depend on the mold size and wire size) for the legs again go foot to foot (make a extension into the body a bit to help anchor the wire) again beads help keep the wire centered. once the packed halves are ready to be merged c-clamps to squeeze the 2 sides together and hold it for the curing period. fine cast: I have made casts using a thin "painting" of straight silicone caulking that i let harden for 24 hours, and then follow the fast cast procedure. this ensures a better surface finish on the casting. make sure that the thin coat is thin! This is great if you make a glow in the dark outer coating! (using glow pigment)