Create the pattern : The pattern is what creates the shape of the finished product. The pattern is made out of wax. For short runs, we can directly machine the wax pattern, but in most cases, we use a metal die based on a 3D CAD model.

Build the tree : We attach several wax patterns to a wax rod to create a tree structure. This enables us to cast many parts at once, which lowers the cost per part.

Make the shell : We dip the tree into a wet, clay-like material—a ceramic slurry. We let it dry. This happens multiple times so that the tree has a strong outer layer.

Remove the wax : The shell is heated upside down. The wax runs out (this is why it’s sometimes called lost wax casting). Then the shell goes into a high-temperature furnace to burn off any remaining wax and strengthen the shell.

Cast the metal : Molten metal is poured into the mold. We use the tree we built in the second step to define where the metal goes. Now a metal part exists where each pattern used to be.

Remove the shell : The ceramic shell is broken away, leaving the tree structure—now only of metal—intact.

Finish the PartParts are carefully cut from the metal tree structure. If needed, we can do some secondary machining to get the desired tolerances and surface finish.