steampunk machine 3d model

Generate a large-scale 3D structure of a massive steampunk machine abandoned in a post-apocalyptic desert. Complex system of oversized gears, rotating mechanisms, pistons, pipes, and brass/iron components. The structure is partially destroyed, with broken gears, disconnected parts, and visible internal mechanisms. Surfaces should show heavy wear: rust, sand erosion, faded metal, and oxidation. Sand partially covering lower sections.