3D CAD Product Designer / Mechanical Design Engineer

Seeking a freelance CAD designer or mechanical design engineer to create an editable 3D model and premium photorealistic renders for SearBox, an electric cooking appliance with a provisional patent application filed. What I need: * Editable 3D CAD model showing exterior and key internal components. * Sectional/cutaway and exploded assembly drawings. * Basic dimensions and labelled components. * One premium photorealistic hero image plus 2–3 additional views. * High-resolution images suitable for marketing and licensing. * Complete editable CAD/source files, including STEP files. * Two rounds of reasonable revisions. * Full ownership and commercial usage rights upon payment. Please provide: * Examples of previous CAD and rendering work. * Fixed-price quote and completion timeframe. * CAD software used. * Willingness to sign an NDA before receiving confidential documents.