dna double helix 3d model

A solid DNA double-helix sculpture with explicit molecular components, designed for physical 3D printing. The DNA is NOT a smooth spiral. It is built from repeating solid geometric units. Backbone structure: - Deoxyribose sugar units represented as thick pentagonal blocks - Phosphate groups represented as thick rectangular connectors These alternate clearly along both strands. Base pairs: - Nitrogenous bases (A–T and C–G) represented as paired flat polygonal plates - Each base pair is a rigid geometric connector between the two strands - Bases are clearly separated from the backbone, not merged Geometry style: Blocky, faceted, low-to-medium detail. No curves except the overall helix path. Every component is thick and structural. 3D printing constraints: All parts fused into one solid object. No thin wires. Minimum thickness suitable for FDM printing. Watertight mesh.