biomechanical coin 3d model

Create a SINGLE 3D printable coin. IMPORTANT: Only ONE object. Do NOT create multiple coins. Do NOT create multiple views or layout. Object: A double-sided coin (front and back in the same mesh). Dimensions: - Diameter: 30mm - Thickness: 3mm Style: Dark sci-fi horror, organic biomechanical design, inspired by a laboratory creature and hive mind. Front side: An irregular X-shaped organic structure with veins and a central eye. The design should feel alive, asymmetric, and slightly disturbing. Back side: A large central eye surrounded by cracked, organic textures and radial patterns. Text: Include the phrase "A EXPERIÊNCIA" engraved on the border of the coin. Geometry requirements: - High relief engraving (medium depth) - Clean topology (watertight mesh) - No floating parts - Suitable for 3D printing (manifold) Restrictions: - No scene - No background - No multiple objects - No presentation layout Output: A single unified 3D coin model, printable as STL.