robotic mobile arm 3d model

Create a highly accurate, clean, watertight 3D model of the complete small autonomous mobile robot shown in the reference image. Preserve the exact overall appearance, proportions, geometry, colors, and mechanical arrangement visible in the reference. ROBOT BODY: - Compact rounded yellow plastic robot chassis - Wide rounded front bumper - Two large black rubber drive wheels with white hubs, one on each side - Compact 2WD differential-drive layout - Open top/rear battery compartment - Two cylindrical 18650 batteries visible on the top - Front-facing sensor openings/modules - Small ventilation slots on the side - Realistic screw heads, brackets and mechanical fasteners ROBOTIC ARM: - Custom blue/teal articulated mechanism mounted across the top/front of the chassis - Two symmetrical blue side arm linkages - Multiple mechanical pivot joints - Visible metal pivot screws - Pink/light-colored central support bar - Servo-driven linkage mechanism - Preserve the unusual curved geometry and p