Gears and transmission
Search-and-Rescue X-Quad Multi-Part Assembly
- Bounding box
- 3677.5 × 285.0 × 103.0 mm
- Engine
- Precision B-rep
- Parameters
- 93
- Published
- September 13, 2026
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The prompt
Act as a senior UAV mechanical/CAD engineer with 20+ years of experience designing professional autonomous search-and-rescue drones. Design a completely CUSTOM, professional, lightweight, durable, 3D-printable X-configuration quadcopter for GPS-denied indoor search, mapping, obstacle avoidance, and survivor detection. Do not copy an existing drone frame. COMPONENTS: • Pixhawk 2.4.8 • Raspberry Pi Zero 2 W • Raspberry Pi Camera • YDLIDAR X2 360° • VL53L0X ToF • Optical Flow sensor • 4× A2212 1000KV motors • 4× 30A ESCs • 1045 propellers • 4S 5200mAh LiPo • 5V UBEC • PDB • XT60 • Full propeller guards DESIGN REQUIREMENTS: • X quadcopter • Optimized center of gravity • Battery below center • Isolated Pixhawk near CG • Raspberry Pi above Pixhawk • YDLIDAR exactly at geometric center • Forward camera with unobstructed FOV • Downward optical flow + VL53L0X • Removable arms • Hollow arms with internal motor-wire channels • ESCs integrated/protected inside arms • Reinforced motor mounts • Shock-resistant landing gear • Complete removable propeller guards • Protect all electronics and sensors • Good airflow and cooling • Easy maintenance and component replacement • Designed for narrow indoor corridors and safe autonomous flight 3D PRINTING: Design for a 220×220 mm printer using Carbon-Fiber Nylon/PETG/PLA+. Specify material, wall thickness, infill, layer height, print orientation, supports, tolerances, estimated weight and print requirements. ENGINEERING: Calculate/estimate: • Motor thrust and thrust-to-weight ratio • Total weight • Center of gravity • Arm loads and dimensions • Frame stiffness • Vibration considerations • Safety factors • Battery placement • Cooling and airflow • Propeller/guard clearance CAD DELIVERABLE: Provide a complete parametric CAD design plan suitable for Fusion 360/SolidWorks, including: 1. Overall dimensions 2. Top/front/side views 3. Exploded assembly 4. Every individual part with dimensions 5. Mounting-hole patterns 6. Motor mounts 7. Arm geometry 8. Battery tray 9. Pixhawk/Pi mounts 10. LiDAR/camera/sensor mounts 11. Landing gear 12. Propeller guards 13. Fasteners 14. Tolerances 15. Assembly sequence 16. BOM 17. Fusion 360 feature tree 18. STEP/STL export plan 19. Manufacturing drawings 20. Structural and weight optimization Make every component position, dimension, mounting interface, cable route, and clearance explicit. IMPORTANT: Do not invent exact dimensions for components whose physical dimensions are unknown. Clearly mark them as "VERIFY FROM ACTUAL COMPONENT" and design adjustable/parametric mounting holes where necessary. Design this like a professional UAV product, not a hobby drone. Do not merely describe the concept. Produce a dimensioned, parametric CAD-ready engineering design that can be modeled, assembled, validated, and 3D printed.
Parameters
| Name | Value | Range |
|---|---|---|
| Layout gap | 320 mm | 200 – 600 |
| Chassis side | 150 mm | 120 – 180 |
| Chassis thickness | 4 mm | 3 – 8 |
| LiDAR cutout dia | 45 mm | 40 – 55 |
| PDB bay side | 60 mm | 50 – 70 |
| PDB bay depth | 8 mm | 3 – 12 |
| Arm socket length | 25 mm | 15 – 35 |
| Arm socket width | 20 mm | 12 – 28 |
| Arm socket depth | 6 mm | 3 – 10 |
| Insert bore dia | 4.6 mm | 3.5 – 5.5 |
| Canopy side | 140 mm | 120 – 160 |
| Canopy height | 38 mm | 30 – 50 |
| Canopy wall | 2.5 mm | 1.5 – 4 |
| Camera window side | 28 mm | 20 – 35 |
| Camera window clearance | 5 mm | 0 – 10 |
| Vent slot width | 4 mm | 2 – 8 |
| Vent slot length | 20 mm | 10 – 30 |
| Vent slot count | 8 mm | 4 – 16 |
| Tray length | 145 mm | 120 – 170 |
| Tray width | 50 mm | 40 – 60 |
| Tray height | 30 mm | 20 – 45 |
| Tray wall | 3 mm | 2 – 5 |
| Strap slot width | 12 mm | 8 – 20 |
| Strap slot length | 20 mm | 10 – 40 |
| XT60 pocket width | 18 mm | 14 – 24 |
| XT60 pocket depth | 10 mm | 5 – 15 |
| Arm length | 170 mm | 130 – 200 |
| Arm root width | 22 mm | 16 – 28 |
| Arm root height | 18 mm | 14 – 24 |
| Arm tip width | 18 mm | 12 – 24 |
| Arm tip height | 14 mm | 10 – 20 |
| Arm wall | 2.2 mm | 1.5 – 4 |
| Root pivot dia | 3.2 mm | 2.5 – 5 |
| Pod length | 40 mm | 30 – 50 |
| Pod width | 34 mm | 25 – 45 |
| Pod thickness | 4 mm | 3 – 6 |
| Mount hole spacing X | 16 mm | 14 – 22 |
| Mount hole spacing Y | 19 mm | 16 – 24 |
| Mount slot length | 6 mm | 4 – 10 |
| Mount slot width | 3 mm | 2.5 – 4 |
| Rib thickness | 3 mm | 2 – 5 |
| Landing boss dia | 10 mm | 6 – 14 |
| Landing boss height | 5 mm | 3 – 8 |
| ESC bay length | 35 mm | 25 – 45 |
| ESC bay width | 20 mm | 15 – 30 |
| ESC bay height | 10 mm | 6 – 15 |
| ESC bay wall | 1.8 mm | 1.2 – 3 |
| ESC vent width | 3 mm | 1.5 – 5 |
| ESC vent length | 12 mm | 6 – 20 |
| ESC vent count | 4 mm | 2 – 8 |
| Guard outer dia | 285 mm | 250 – 350 |
| Guard ring width | 3 mm | 2 – 5 |
| Guard ring thick | 3 mm | 2 – 5 |
| Guard spoke width | 2.5 mm | 1.5 – 5 |
| Guard spoke thick | 2.5 mm | 1.5 – 5 |
| Guard spoke count | 6 mm | 3 – 12 |
| Guard hub dia | 30 mm | 20 – 50 |
| Leg height | 90 mm | 80 – 110 |
| Foot dia | 18 mm | 12 – 25 |
| Leg radius | 8 mm | 5 – 12 |
| Mount hole dia | 3.2 mm | 2.5 – 5 |
| Pixhawk tray length | 90 mm | 70 – 110 |
| Pixhawk tray width | 55 mm | 45 – 70 |
| Pixhawk tray thickness | 12 mm | 8 – 16 |
| Grommet dia | 6 mm | 4 – 8 |
| Slot length | 12 mm | 8 – 20 |
| Slot width | 3 mm | 2 – 5 |
| Pixhawk standoff dia | 6 mm | 4 – 8 |
| Pixhawk standoff height | 8 mm | 5 – 12 |
| Pi bracket length | 65 mm | 50 – 80 |
| Pi bracket width | 30 mm | 25 – 40 |
| Pi bracket thickness | 3 mm | 2 – 5 |
| Camera PCB width | 25 mm | 20 – 35 |
| Camera PCB height | 24 mm | 20 – 30 |
| Pi standoff dia | 4 mm | 3 – 6 |
| Pi standoff height | 6 mm | 4 – 10 |
| Cable slot width | 5 mm | 3 – 8 |
| Sensor mount outer dia | 70 mm | 50 – 90 |
| Sensor mount thickness | 4 mm | 3 – 6 |
| Sensor center dia | 45 mm | 35 – 55 |
| Flow window dia | 20 mm | 10 – 30 |
| VL53L0X aperture dia | 8 mm | 4 – 12 |
| Sensor cable slot width | 5 mm | 3 – 8 |
| M3 screw length | 8 mm | 5 – 20 |
| M3 screw dia | 3 mm | 2.8 – 3.2 |
| M2.5 screw length | 6 mm | 4 – 16 |
| M2.5 screw dia | 2.5 mm | 2.3 – 2.7 |
| M2 screw length | 6 mm | 4 – 12 |
| M2 screw dia | 2 mm | 1.8 – 2.2 |
| Insert OD | 4.6 mm | 3.5 – 5.5 |
| Insert length | 6 mm | 4 – 10 |
| Hardware standoff dia | 5 mm | 4 – 8 |
| Hardware standoff length | 10 mm | 5 – 20 |
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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