I need a precise 3-dimensional CAD model of a casting tree engineered specifically for a single God idol instead of the usual ring or earring cluster. The design must be production-ready for lost-wax casting, with all sprues, runners, and vents positioned to guarantee even metal flow, minimal porosity, and an easy break-off point for finishing. What I expect from you • A fully detailed 3D file (.STL or .3dm preferred, but STEP or OBJ are fine) that can go straight to printing. • Correct sprue diameters, angles, and junction fillets worked out according to jewellery-industry best practice. • Surfacing that preserves every contour of the idol so fine details survive casting and polishing. • A simple drawing or screenshot set that labels overall dimensions and shows the metal flow path, so my caster can verify the layout before printing. Useful tools Rhino, MatrixGold, ZBrush, or comparable jewellery-grade software are all acceptable as long as the output is clean and watertight. Acceptance criteria 1. File imports into Rhino without open edges or self-intersections. 2. Total tree height keeps well within a standard 3 × 4 inch flask (or you propose an equally practical alternative). 3. Sprue connections are thick enough to feed the heaviest cross-section of the idol while allowing quick removal. Send a short note on how you normally calculate sprue size for idols, along with one or two screenshots of similar work, and we can get started right away.