colorful toy robot 3d model

1. HEAD (3D Part #1: “Head_Shell”) External shape Rounded rectangular or stylized humanoid shape Front face panel can be flat or slightly curved Optional front cutout for OLED screen (for eyes) Internal hollow features Main cavity: space for Mini speaker HC-SR04 ultrasonic sensor (eyes) OR 0.96'' OLED display Wire channels: pass through the neck opening Mounting posts for screws (2–4) to attach removable faceplate Dimensions (suggested) Width: 40 mm Height: 35 mm Depth: 30 mm Neck hole diameter: 15–18 mm Optional mounting Small micro-servo inside head for rotation Head attaches to neck joint using a ball-socket or hinge 👤 2. NECK (3D Part #2: “Neck_Joint”) Internal structure Hollow cylinder with a channel for wires Servo mount for SG90 micro servo if you want head rotation Alternatively, a fixed hard-plastic tube Dimensions Outer diameter: 20 mm Inner hollow: 12–14 mm Height: 20–25 mm Special features Slots for screws to secure head and torso Reinforced walls to hold torque from s