handheld device 3d model

Design a waterproof 3D-printable enclosure for a handheld device called Inspector System. The enclosure size is about 140 × 105 × 40 mm, wall thickness 3 mm, with a removable bottom lid fixed by 4 M3 screws and a gasket groove for sealing. The front face is slightly inclined and contains a 70 × 32 mm window for a 2.9" e-paper display with internal mounting step. The top panel includes two 12 mm threaded push button holes spaced ~28 mm apart. One side must include openings for USB-C connector, power switch, and encoder cable exit with strain relief. Inside provide PCB standoffs for ESP32 and display shield, cable routing, and a battery compartment for a 60 × 94 mm Li-ion battery at the bottom. The enclosure should include reinforced corners, internal ribs, and a rear mounting surface to attach to a measuring wheel handle. Suitable for FDM 3D printing. The enclosure will be 3D printed and must be robust, compact and easy to assemble. The enclosure consists of: • a main upper body • a removable bottom cover (