Quadruped robot 3D Models

Find the best Quadruped robot 3D Models, free download in STL, FBX, GLB, OBJ, 3MF, USDZ for 3D modeling and creation in Blender, 3D printing, game developing, animation, eCommerce, AR/VR and etc. Generated by Tripo AI 3D Generator.

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Create a precise 3D printable mechanical body for a small quadruped robot dog designed for SG90 micro servo motors.

The model should be a lightweight robotics frame with four legs and a central body, designed for electronics projects using ESP32 and a PCA9685 servo driver.

Design the robot in an exploded mechanical layout where every moving component is separated but visible in a single frame.

Robot specifications:

• Total body weight target: about 200 grams
• Designed for 12 SG90 micro servos
• Servo size: 23mm × 12mm × 29mm
• Each leg must have 3 joints: hip, shoulder (upper leg), and knee (lower leg)

Mechanical structure:

Central Body Frame
• Rectangular body chassis
• Mounting holes for ESP32 DevKit V1
• Mounting area for PCA9685 servo driver
• Small battery compartment
• Wire routing channels

Leg Structure (each leg built from separate parts):

Hip Module
• SG90 servo holder integrated into the body
• Side mounting brackets
• Rotation axis aligned with servo horn

Upper Leg Link
• Lightweight beam

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Create a complete, production-ready, single-piece 3D printable chassis/body for a quadruped robot dog that uses exactly 12 SG90 micro servos (3 per leg).

Requirements (must follow exactly):

- Overall body dimensions: 185 mm long × 92 mm wide × 48 mm tall (main torso).
- Material: optimized for PLA / PETG FDM printing, 0.2 mm layer height, no supports needed or minimal supports only.
- Wall thickness 2.5–3 mm with internal ribs for strength and low weight.

Servo mounting (VERY IMPORTANT – SG90 exact size 22.8 × 12 × 31 mm):
- 4 coxa/hip servos mounted directly into the body (one at each shoulder).
- Each coxa servo has a precise rectangular pocket with 4 × M2 screw holes (standard SG90 mounting pattern) so the servo clicks in perfectly from the inside and is screwed from below.
- Servo shafts point horizontally outward (left/right) for natural leg rotation.
- Clear space around each servo for the horn and easy wiring exit.

Leg attachment:
- Strong 25 mm diameter circular platform around each coxa servo sha

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