Compact Coin Holder Keychain | Mechanical Product Design for 3D Print

Designed a compact keychain coin holder that combines functional mechanical design with a modern geometric aesthetic. The objective was to create an everyday carry (EDC) accessory capable of securely storing multiple coins while remaining lightweight, durable, and comfortable to carry on keys or clothing. The product was entirely designed in SolidWorks and optimized for FDM 3D printing. Special attention was given to the internal retention system, ergonomic handling, structural strength, and surface aesthetics to create a premium consumer product.