October 13, 2010

Cast Skulls

Back to making some stuff, ie: sculpture.I decided to do some casting of skulls and what not to build my creatures upon and to try some new casting materials out.  Here is how it's going so far. I'm not going to go into all the little details as I build it, it takes too much time away from making the object anyhow.

I took apart the pieces from a toy skeleton, and taped the inside holes so that when I make the mold it wont seep in.

Here it is, you can kind of see the tape, meanwhile I put back together the object for casting.

Here is my stuff as I get ready to get goopy. Covered the table, got stir sticks, a disposable cup, my smooth on product, nitrile gloves, a paint brush.

I decided to weight out the 2 part rebound 25 mix. It is a 1:1 ratio, because it is my first time using this product. Better safe than sorry. I found it quite thick and cumbersome to work with at first.

I use my kitchen timer to time the 3 min mixing period and decided to work the molds on foil for easier removal.  The next step is to paint on a thin layer of the rebound 25, to pick up the details of the object.

So here is layer 1. It takes an hour to set up. So I set the kitchen timer and do something else.  After this step, basically I keep doing the same thing, using a thicker version to fill in the eye sockets and any undercuts to ensure the material is extra strong there. It is recommended that you do 4 layers for maximum elasticity and strength so with await period of about and hour for it to tack up and about 15 min of work time with each layer the whole mold process takes about 5-6 hrs. I finished at about 12:30am, washed up and went to bed while I waited for it to cure completely.

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