Mahjong Clamp Frame System
Parametric modular 3D-printable clamp frame for mahjong tables.
Description
Engineered a modular 77 cm × 77 cm clamp-on mahjong table frame using a fully parametric CAD-driven design system optimized for consumer FDM printing. Designed a three-STL architecture consisting of middle rails, slot corners, and tenon corners, reducing manufacturing complexity while supporting 24-piece full-frame assembly. Iteratively redesigned the bridle tenon miter joint geometry to eliminate outer-face breakthrough by mathematically constraining slot depth and preserving a 2.18 mm structural wall buffer. Maintained assembly kinematics by preserving the 45° miter-normal insertion vector, proving axis-aligned alternatives geometrically impossible under solid-body constraints. Optimized for printability on the Creality K1C with support-free geometry, integrated trough pockets, tongue-and-groove rail joining, asymmetric relief channels, and structural stress validation for repeated physical use.