|Another reason to NOT smoke!|
When I entered the wax room, the first thing I saw was the bottom section of my sculpture "Rock Towers and Frogs." It was floating upside down in a tub of water with wax parts from other sculptures.
You may see it here reinforced on the underside with bamboo. I always think that water is a brilliant storage method for the waxes. It helps normalize the temperature, so less risk of the wax melting or becoming too brittle. Water is soft enough to never damage the wax or mix with it. And it can accommodate a sculpture of any shape or size, supporting all parts equally.
The choice to use bamboo as reinforcement
is important because the next step is to dip each sprued sculpture part into at
least six layers of a ceramic shell slurry.
This takes several days since each coat must be dry before being dipped
into the next. Once the dipping done and
the layers thoroughly dry, the ensemble will be cooked in a furnace, firing the
ceramic mold while melting out all of the contents. That is why this is called the “Lost Wax
Process” and why any material MUST be destroyed by fire, leaving very little
inside. Bamboo is rigid and strong, but
burns away! Bamboo, newspaper, wooden
toothpicks, wooden skewer sticks (for shish-kabob), etc. are some of the
materials used to support the wax when needed.
Not all sculptures require this,
but it helps creativity to know what is available or what are feasible options
around potential complications, no?
My future bronze sculpture in wax - upside down in water!
Here Raymondo has removed my sculpture
bottom part for my lookover and approval.
He has already chased (cleaned up) the wax and the piece is ready to be
sprued. That means it wlll be connected
to a wax funnel and connecting and venting (wax) lines whose placement is
determined by the inevitable flow of molten bronze.
And now, right side up on a table-ready for proofing!
|Consulting on the Best way to Cast THIS bronze sculpture|