delivery compartment 3d model

Create a realistic and fully functional 3D model of a delivery compartment for an autonomous indoor delivery robot. The compartment dimensions must be 225 mm (length) × 150 mm (width) × 220 mm (height). The design should be lightweight, modern, and suitable for 3D printing using PLA or PETG. Include a side-opening door mounted on hinges on one side of the box, not on the top. The door should be designed for automatic opening and closing using a servo motor. Add a separate servo-operated locking mechanism to securely lock and unlock the door. Include dedicated empty mounting spaces for two SG90 or MG90S servo motors, one for door movement and one for locking. Create hidden internal channels for wire routing and cable management. Include mounting holes for attaching the compartment to a robot chassis. Add structural reinforcements, rounded corners, ventilation slots, removable access panels, and an easy-to-assemble modular design. The model should look like a professional autonomous deli