I need a fresh 3-D design for a plastic casing that houses both the front acrylic plate and the internal PCB of my smart-home automation touch switch panel. The look should be modern and sleek, with clean lines that complement contemporary interiors while still being practical for everyday use. The design must: • Securely sandwich the acrylic faceplate so that it sits perfectly flush and remains easy to replace if damaged. • Position and protect the PCB with accurate standoff heights, cable openings, and mounting points for standard wall-box installation. • Allow ventilation for heat dissipation without compromising the minimalist aesthetic. • Be ready for injection-moulding: I’ll need well-considered draft angles, split lines, and uniform wall thickness. Please deliver editable CAD files (STEP or SolidWorks preferred) plus high-quality renders that highlight the texture, finish, and assembly sequence. A short assembly guide or exploded view would also help my manufacturer. If you’ve designed consumer-grade enclosures before—especially for IoT or smart switches—let me see a sample so we can move quickly into prototyping.