Eyeglass Frame (SDF)

Create a **fully parametric, engineering-grade 3D CAD model** of a modern rectangular eyeglass frame optimized for **FDM 3D printing**, with **all components printable separately and editable**. Use **millimeters** as units. The design must include a **front frame (132 mm overall width, 36 mm overall height), 51 mm wide rectangular lens openings with rounded corners, 18 mm bridge width, 6 mm frame depth, 3.0–3.2 mm frame thickness, smooth integrated nose bridge, and 1 mm outer fillets**. Add a **continuous internal lens groove** around both lens openings with **2.0 mm groove depth and 1.2 mm groove width** for press-fit lenses. Design **two temple arms**, each **140 mm long**, with a **29 mm straight section**, smooth ergonomic curve beginning after **34 mm**, tapering toward rounded ends while maintaining structural strength. Create **fully printable three-barrel hinges** with **2.4 mm barrel diameter**, **10 mm hinge height**, and **2 mm pin hole**, allowing proper movement with **0.25 mm clearance**. Include **two removable hinge pins** (Ø2 mm × 12 mm) and **two printable locking caps** (Ø4 mm × 6 mm) to secure the hinges. Ensure every component has proper tolerances for PETG printing, no non-manifold geometry, watertight solids, smooth G2 transitions, and manufacturable geometry without unnecessary supports. Arrange all parts—front frame, left temple, right temple, left hinge, right hinge, two hinge pins, and two locking caps—flat on a single build plate with at least **5 mm spacing** between parts. The CAD model must be fully constrained, feature-based, and editable with named parameters for all major dimensions. Generate clean production-ready geometry suitable for export as **STEP, STL, OBJ, and native CAD format**, optimized for **0.4 mm nozzle, 0.16 mm layer height, PETG material, 5 walls, 40–50% gyroid infill**, and ready for immediate 3D printing.

Parameters

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