Date : April 2009
Materials : Crayons!, Tap silicone RTV A & B (blue), lots of paper towers, tape, super glue, hot glue, poster board, clay, things that I wanted to cast
Tools : Saw, glue gun, candle, lighter, aluminum can, stir stick, disposable measuring cups
Part A : Make the mold
To make the mold I cut out the box pieces from poster board and hot glued them together. I then just stuck things where they would fit- using two methods of attachment. A: clay! just stick it to the wall and stick the item into the clay. The end. B: Tape and glue! If I had double sided tape, this would be way easier... but I didn't... so I glued the non-sticky side down and stuck gears to the sticky side. After I was set, I mixed up the silicone mold as described on the side of the bottles. It's a mess, I wont detail the steps, they're already written down on the product. But *so* messy. Note: I used un-baked clay and it greatly slowed down the drying of mold touching it. The tape did as well, I believe.
Part B : Cast with crayons
Take your average soup can and wash it out & dry it. Throw some crayons in it. Light a candle. You can hold (with your fingers! How neat!) the can over the flame and melt the candles. Careful- the can get warm if your holding it near where you're warming it... experiment, you'll figure it out quick. Pour into molds! Tada! It dries super-quick for the shallow molds but deeper ones of course take longer- I just threw it in the fridge to speed up cooling down. I found that if I pour a bit, pushed it down with a stick and poured some more there was no structure issues and it filled the mold out more (for the gear teeth).
Tape method works really well but still having difficulties... how now to prevent/remove the excess/overflow on top of the mold? Hmmm.. For things like the screw, rocking the screw back and forth a bit in the clay pre-pouring to allow the mold to inch up & around a bit more helped. The varied speeds of drying freaked me out, but now I know! The hand mold is difficult to remove, but none other are...
They're cool, but I'm not sure what to do with them... re-melting the gears is a pleasure to watch. Haven't tried to draw with them yet, so I don't know how sturdy they are. They respond well to modification via a heated needle after they've dried.
My current goal is to eat a computational machine. A thing that does something- I want to eat it. Consume it entirely. Ever seen the movie Ravenous? Sort of like that... I've given a lot of thought about how to consume circuitry, but I don't see how it'd work... so now I'm settling on a mechanical device... my goal to to better my skills with casting so I can buy food-safe silicone and create wonders... movable, edible, yummie wonders.... some day...