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DCC Bridge
Anonymous1762956762
11-15 11:27
Model Name
colorful toy robot 3d model
Tags
machine
rendering
stylized
Prompt
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 servo 🫀 3. TORSO (3D Part #3: “Torso_Shell”) The most complex part since it holds the electronics. External shape Compact chest cavity with slight humanoid contour Two side openings for arm joints Bottom opening for waist connection Internal cavity layout Upper compartment Fits Arduino Nano / Uno Mini / ESP32 Mounting posts for PCB Ventilation slots Middle compartment Space for an L293D/DRV8833 motor driver OR I2C expander board Routing channels for arm servo wires Lower compartment Battery pack storage (Li-ion 18650 or Li-Po flat cell) Switch mount USB charging port cutout Dimensions Height: 70 mm Width: 40–45 mm Thickness: 30 mm Back panel Removable Secured with 4 screws Provides easy access to electronics 💪 4. ARMS (3D Parts #4–6: “Arm_Shoulder”, “Arm_Upper”, “Arm_Lower”) A. Shoulder Joint Circular or oval socket Houses SG90 servo for forward/backward rotation Hollow axle to route wires to the upper arm B. Upper Arm Tube-like structure Internal hollow: 8–10 mm Servo horn mount Length: 35–45 mm Attach elbow servo at end C. Forearm / Lower Arm Slightly tapered shell Hollow for wires Space for gripping mechanism OR fixed hand D. Hands Optional simple claw with 2–3 fingers Hinged using micro-servo or spring-loaded design Hollow to minimize weight 🦵 5. LEGS (3D Parts #7–10: “Leg_Upper”, “Leg_Lower”, “Knee_Joint”, “Foot”) Hip Joint Ball joint or hinge Attaches to lower torso Internal wire channel passes into upper leg Upper Leg (Thigh) Tube-like Servo mount for hip movement Height: 45–60 mm Hollow inside for balance weights if needed Knee Joint Simple hinge Optionally servo-driven Reinforced walls for stability Lower Leg (Shin) Rectangular or cylindrical design Internal hollow for wires Cutouts for weight reduction Feet Flat bottom with rubber pad slots Hollow cavity to place nuts/metal pieces for stability (low center of gravity) Space for a tiny IMU sensor if needed Optional ankle joint 👣 6. EXTRA INTERNAL DESIGN ELEMENTS Wire Channels Routed from head → torso → legs Minimum diameter: 5–6 mm Avoid sharp corners Mounting Posts Use M2 or M3 screws Provide easy access for service/repairs Cooling & Ventilation Slot openings in the torso’s back/side Especially if using ESP32 or multiple servos
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