custom NumWorks case on request

This custom NumWorks calculator case has been designed as a protective, functional, and educational accessory, intended for students, teachers, engineers, and professionals who use the NumWorks on a daily basis. Beyond providing full protection for the calculator, this case integrates practical tools directly useful in academic and technical environments, while preserving ergonomics, accessibility, and a clean design. The overall geometry has been carefully developed to remain compact, robust, and easy to manufacture using standard 3D printing processes.One of the key features of this case is a perfectly flat side with integrated measurement graduations, allowing it to be used as a built-in ruler. These graduations are directly modeled into the design, requiring no additional parts, and are optimized to remain readable after printing with common layer heights and nozzle sizes. This feature enables quick and convenient length measurements for geometry exercises, technical drawings, elec