Brackets and mounts
Spider Robot Parts - Exploded Printable Set
- Bounding box
- 2760 × 150 × 30 mm
- Engine
- 3D Printing B-rep
- Parameters
- 69
- Published
- November 11, 2026
Download
Free to download and use. See the terms.
The prompt
Create a functional, 3D-printable mechanical spider robot with 8 symmetrical articulated legs (4 per side). Overall dimensions: 510 mm long × 460 mm wide × 120 mm high. Central chassis: rectangular plate, 200 × 150 × 4 mm, with mounting supports for electronics. Each leg consists of: * Coxa: 35 × 18 × 8 mm. * Femur: 55 × 18 × 8 mm. * Tibia: 65 × 14 × 7 mm. * Foot: 18 × 12 × 8 mm. Include 8 MG90S servo mounting brackets (servo size: 22.8 × 12.2 × 28.5 mm), mechanical pivot joints, and screw holes. Add mounting spaces for Arduino Mega 2560 (101.5 × 53.3 mm), PCA9685, HC-SR04 ultrasonic sensor at the front, MPU6050, battery compartment (105 × 35 × 20 mm), and UBEC regulator. Create a realistic mechanical assembly, not a decorative model. Make every component a separate editable part. Ensure symmetry, correct proportions, printable geometry, accessible screw holes, and no intersecting parts. Generate a complete assembly, exploded view, individual components, and dimensioned top, front, and side views. Use millimeters and preserve all specified dimensions.
Parameters
| Name | Value | Range |
|---|---|---|
| Exploded spacing along X | 240 mm | 180 – 400 |
| Chassis plate length | 200 mm | 100 – 300 |
| Chassis plate width | 150 mm | 80 – 250 |
| Chassis plate thickness | 4 mm | 2 – 10 |
| Chassis M3 clearance hole | 3.4 mm | 2 – 6 |
| Electronics standoff height | 8 mm | 3 – 20 |
| Standoff post diameter | 6 mm | 3 – 12 |
| Standoff screw hole | 3.4 mm | 2 – 6 |
| Coxa length | 35 mm | 20 – 60 |
| Coxa width | 18 mm | 10 – 40 |
| Coxa thickness | 8 mm | 4 – 16 |
| Femur length | 55 mm | 30 – 100 |
| Femur width | 18 mm | 10 – 40 |
| Femur thickness | 8 mm | 4 – 16 |
| Tibia length | 65 mm | 40 – 120 |
| Tibia width | 14 mm | 8 – 30 |
| Tibia thickness | 7 mm | 4 – 14 |
| Foot length | 18 mm | 10 – 35 |
| Foot width | 12 mm | 8 – 25 |
| Foot height | 8 mm | 4 – 20 |
| Foot ground pad diameter | 10 mm | 5 – 18 |
| Pivot pin clearance diameter | 2.5 mm | 1.5 – 5 |
| Servo-horn screw hole | 2 mm | 1 – 4 |
| Foot mounting hole | 2.5 mm | 1.5 – 5 |
| MG90S body length | 22.8 mm | 15 – 35 |
| MG90S body width | 12.2 mm | 8 – 20 |
| MG90S body height | 28.5 mm | 18 – 40 |
| Servo mounting tab projection | 4 mm | 2 – 8 |
| Servo mounting tab thickness | 1.5 mm | 0.8 – 3 |
| Servo output shaft diameter | 4.8 mm | 2 – 8 |
| Servo bracket length | 30 mm | 20 – 50 |
| Servo bracket width | 16 mm | 12 – 30 |
| Servo bracket height | 30 mm | 18 – 50 |
| Servo bracket wall | 2.5 mm | 1.2 – 5 |
| Servo bracket screw hole | 2.2 mm | 1.5 – 4 |
| Arduino Mega board length | 101.5 mm | 60 – 120 |
| Arduino Mega board width | 53.3 mm | 35 – 80 |
| Arduino Mega board thickness | 1.6 mm | 0.8 – 4 |
| PCA9685 board length | 62 mm | 40 – 90 |
| PCA9685 board width | 25 mm | 15 – 45 |
| PCA9685 board thickness | 1.6 mm | 0.8 – 4 |
| MPU6050 board length | 21 mm | 12 – 35 |
| MPU6050 board width | 16 mm | 10 – 25 |
| MPU6050 board thickness | 3 mm | 1 – 6 |
| HC-SR04 bracket length | 45 mm | 30 – 70 |
| HC-SR04 bracket depth | 20 mm | 15 – 35 |
| HC-SR04 bracket height | 15 mm | 8 – 30 |
| HC-SR04 bracket wall | 2.5 mm | 1.2 – 5 |
| HC-SR04 screw hole | 2.2 mm | 1.5 – 4 |
| Battery box length | 105 mm | 60 – 150 |
| Battery box width | 35 mm | 20 – 60 |
| Battery box height | 20 mm | 12 – 40 |
| Battery box wall | 2.5 mm | 1.2 – 5 |
| Battery mounting tab length | 8 mm | 4 – 16 |
| UBEC tray length | 40 mm | 25 – 70 |
| UBEC tray width | 25 mm | 15 – 50 |
| UBEC tray height | 10 mm | 5 – 25 |
| UBEC tray wall | 2 mm | 1.2 – 5 |
| UBEC tray screw hole | 2.2 mm | 1.5 – 4 |
| Pivot pin shaft diameter | 2.5 mm | 1.5 – 4 |
| Pivot pin shaft length | 12 mm | 6 – 25 |
| Pivot pin head diameter | 5 mm | 3 – 9 |
| Pivot pin head height | 1.5 mm | 0.8 – 3 |
| M3 screw shaft diameter | 3 mm | 2 – 5 |
| M3 screw shaft length | 10 mm | 5 – 25 |
| M3 screw head diameter | 5.5 mm | 3.5 – 9 |
| M3 screw head height | 2 mm | 1 – 4 |
| M3 nut height | 2.5 mm | 1.5 – 5 |
| M3 washer height | 1 mm | 0.5 – 2 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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