Main steps of the indirect wax slab process:
1) a piece mold is formed on the model, composed of smaller pieces to account for the undercuts;
2) the piece mold is removed and sections are lined with thin, warmed sheets (slabs) of wax;
3) the wax parts are joined with a hot tool to form a hollow inter-model, and the surface is reworked as needed;
4) the hollow wax inter-model is filled with refractory core material and core pins are inserted through the wax and into the core;
5) the wax sprue system is fused to the inter-model in strategic locations with a hot tool;
6) the inter-model is invested in a refractory mold;
7) the mold is then heated until dry and all traces of the wax burned out;
8) molten bronze is poured into the mold;
9) fettling includes breaking off the refractory mold, removing the core pins, and cutting away the sprue system. Chasing may include polishing, burnishing, and the addition of details as needed; the surface color may also be enhanced with inlays, plating, and/or a patina.