I'm looking for a skilled 3D CAD designer to create a non-functional smartphone prototype, specifically the outer shell, for visualization purposes. This prototype may also be used for rendering and potentially 3D printing. Requirements: - Detailed exterior design, not just basic shape - Use of provided sketches or drawings as references - Final 3D CAD files in STL format Ideal Skills and Experience: - Proficiency in 3D CAD software - Experience in designing consumer electronics, especially smartphones - Ability to interpret and translate sketches into 3D models - Strong attention to detail and accuracy