electric locomotive 3d model

Create a highly detailed, realistic hard-surface 3D model of an Indian electric locomotive similar to WAP-7, matching real locomotive proportions. Include accurate body shape, front cabin, dual front windows, headlight housing, side grills, vents, doors, buffers, coupler, and roof equipment including detailed pantographs. Add full wheel assembly with bogies, axles, suspension details, and correctly spaced train wheels. Keep details sharp but slightly thickened for 3D printing durability. Model must be watertight, manifold, single solid mesh, no holes, no non-manifold edges. Avoid extremely tiny fragile parts but preserve visible mechanical detail. No textures, no colors, geometry only. Optimized for STL export and FDM 3D printing. Scale suitable for miniature train model. Clean topology, smooth surfaces, symmetrical design.