Expansion-Peg Folding Hinge

Create a functional, 3D-printable folding hinge with two leaves. **Dimensions when closed:** - Width: 50 mm - Depth: 40 mm - Maximum hinge body thickness: 8 mm - Opening angle: 0–180° - Two outer corners opposite the hinge axis rounded R5 mm **Hinge mechanism:** - Interlocking hinge knuckles with removable pin - 0.3 mm moving clearance - No screws **Mounting side A – 4 mm acrylic lid:** - 3 integrated cylindrical split expansion pegs - Peg diameter: 5.8 mm, hole diameter: 6 mm - Peg shaft length: 4 mm - Rounded mushroom-shaped heads extending 1 mm beyond the acrylic surface - Heads must compress during insertion or expand afterward - Expansion using a small pin or wedge **Mounting side B – 10 mm plywood:** - 3 integrated split expansion pegs - Peg diameter: 5.8 mm - Peg length: 4 mm - Designed for 6 mm blind holes - No protrusion through the plywood All expansion pegs must be accessible for activation after insertion. Minimize stress on the acrylic. Create accurate, separate solid parts suitable for FDM printing. Verify hinge movement and closed dimensions. Export STEP and STL files.

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