humanoid service robot 3d model

Create a full 3D model of a friendly humanoid service robot with a large rectangular head, cartoon-style digital face, rounded body, and wheels for mobility, inspired by the reference image. The model must be hollow with a uniform wall thickness of exactly 3 mm. The interior should be empty, optimized for 3D printing. Surfaces must be smooth, with no unnecessary complex geometry. Details: - Head: rectangular with rounded edges, flat front surface for a digital screen, eyes and mouth represented in a simple, cartoon-like style. - Neck: cylindrical connector between head and torso. - Torso: smooth teardrop-shaped body with side cutouts. - Wheels: two large side wheels integrated into the body, plus small support wheels if needed. Specifications: - Wall thickness: 3 mm. - Hollow interior for lightweight printing. - Export format: STL or OBJ. - Scaled to human-proportional size (~70–80 cm tall). - Ready for slicing in FDM 3D printers.