I need a high-accuracy 3D CAD model of a custom sculptural table base, based on a physical cardboard prototype (photos provided) and a PDF outline drawing (freehand sketch). This model will be used for CNC cutting, so the geometry must be precise, symmetrical, and production-ready. You will be required to: - Recreate the full table base as a clean, accurate 3D model using the provided PDF profile and prototype photographs. - Convert the freehand PDF into a proper CAD spline/curve, ensuring perfect symmetry on the left and right sides. - Smooth all curves, remove distortions from hand drawing, and ensure the form is geometrically balanced. - Model the upper plate and bottom plate to the exact dimensions (provided separately in comments/messages). - Produce a model suitable for CNC fabrication (metal cutting, welding, and assembly). - Ensure all transitions are smooth and manufacturable — no twisted surfaces or broken curves. Critical Requirement: Symmetry The provided PDF drawing is freehand and not perfectly symmetrical. - Mirror-check the left/right curves - Correct uneven or unintentional distortions - Rebuild curves as clean splines - Produce a final form that is fully symmetrical in elevation, while matching the intended silhouette - Verify symmetry across the central axis before final delivery This is extremely important because the final model will be CNC-cut and assembled in metal. Any asymmetry will affect fabrication quality.