I have a simple but precise job: turn my rough concept for a small rectangular box into a production-ready 3D model. You can work in Fusion 360, SolidWorks, or any CAD package that exports clean STL files—Fusion is ideal because I can review the timeline, but I’m flexible. Key mechanical details • Latch: a tidy snap-fit latch is essential. It should hold firmly yet open without tools. • Hinges: two neat butt hinges integrated into the body and lid. They must align perfectly so the lid sits flush when closed. • Seal: please incorporate a shallow groove that accepts an off-the-shelf O-ring or gasket, giving the box a light seal between lid and body. Form factor & tolerance The overall footprint is roughly 150 × 100 × 60 mm; wall thickness around 2.5 mm. Feel free to suggest tweaks that improve strength, printability, or moldability while keeping external dimensions close. Deliverables 1. Native CAD file (Fusion 360 .f3d or SolidWorks .sldprt) 2. Watertight STL, oriented for FDM/FFF printing 3. Brief PDF or JPEG with exploded view, hinge/latch section, and critical dimensions Acceptance criteria • Hinges rotate 180° without interference • Snap-fit locks at ≤0.3 mm interference and survives 500 cycles (simulated) • Lid compresses the seal evenly along the entire perimeter If you’ve designed snap-latches or small hinged enclosures before, this should be quick. Looking forward to your insight on draft angles, ribbing, or other manufacturability touches that will make this box both sturdy and user-friendly.