Gears and transmission
Nano Helicopter Internal Assembly
- Bounding box
- 255.0 × 190.0 × 98.0 mm
- Engine
- Precision B-rep
- Parameters
- 52
- Published
- August 12, 2026
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The prompt
Design the complete internal mechanical architecture and component packaging for a **custom hobby nano helicopter modeled on the Teledyne FLIR Black Hornet 4**, fitting within its published **255 mm length, 190 mm single-main-rotor/tail-rotor configuration, and approximately 70 g mass target**. Package a conventional 3-servo CCPM rotor system, brushless main motor with reduction gearing, flight controller, companion processor, adjustable battery, ESCs, receiver/Wi-Fi, tail motor, **12 MP-class EO camera, 640 × 512-class thermal camera, three navigation cameras, and miniature ToF obstacle sensors**, with the center of gravity directly below the main rotor shaft. Create an extremely lightweight, skeletonized **0.8–1.2 mm structural chassis** with modular/removable mounts, open wiring channels, thermal isolation around the thermal camera, and longitudinal battery adjustment, using M1.4–M2 hardware where appropriate. Make all major component envelopes and mounting positions **parametric and independently adjustable** so commercially available components can replace preliminary dimensions without redesigning the chassis, and do not assume or reproduce unpublished proprietary Black Hornet internal dimensions or military-specific systems.
Parameters
| Name | Value | Range |
|---|---|---|
| Chassis Length | 255 mm | 200 – 300 |
| Chassis Width | 45 mm | 30 – 60 |
| Chassis Depth | 25 mm | 15 – 35 |
| Nose X Position | -100 mm | -180 – -60 |
| Main Shaft X Position | 0 mm | -30 – 30 |
| Rotor Head Height | 80 mm | 60 – 100 |
| Main Shaft OD | 6 mm | 4 – 8 |
| Main Shaft Wall | 2 mm | 0.5 – 2.5 |
| Main Rotor Diameter | 190 mm | 150 – 220 |
| Swashplate Diameter | 20 mm | 15 – 30 |
| Servo Circle Radius | 16 mm | 10 – 30 |
| Servo Length | 20 mm | 15 – 25 |
| Servo Width | 8 mm | 5 – 12 |
| Servo Height | 16 mm | 10 – 20 |
| Main Motor Diameter | 16 mm | 10 – 22 |
| Main Motor Length | 18 mm | 10 – 25 |
| Gearbox Diameter | 20 mm | 10 – 30 |
| Gearbox Length | 12 mm | 5 – 25 |
| FC/Companion Board Size | 31 mm | 20 – 40 |
| FC Stack Height | 10 mm | 4 – 20 |
| FC X Offset Aft | 30 mm | 10 – 60 |
| ESC Length | 26 mm | 15 – 35 |
| ESC Width | 20 mm | 10 – 30 |
| ESC Height | 6 mm | 2 – 12 |
| ESC X Offset | 20 mm | 5 – 50 |
| Battery Length | 50 mm | 35 – 70 |
| Battery Width | 24 mm | 15 – 35 |
| Battery Height | 12 mm | 6 – 20 |
| Battery CG Adjust | 0 mm | -8 – 8 |
| Tail Boom Length | 70 mm | 30 – 120 |
| Tail Motor Diameter | 7 mm | 4 – 10 |
| Tail Motor Length | 15 mm | 8 – 20 |
| Tail Prop Diameter | 45 mm | 30 – 60 |
| EO Module Length | 19 mm | 10 – 25 |
| EO Module Width | 14 mm | 8 – 20 |
| EO Module Height | 14 mm | 8 – 20 |
| Thermal Module Length | 18 mm | 10 – 25 |
| Thermal Module Width | 18 mm | 10 – 25 |
| Thermal Module Height | 14 mm | 8 – 20 |
| Gimbal X Offset | -35 mm | -60 – -5 |
| Nav Camera Length | 8 mm | 5 – 12 |
| Nav Camera Width | 8 mm | 5 – 12 |
| Nav Camera Height | 6 mm | 3 – 10 |
| ToF Module Length | 5 mm | 3 – 8 |
| ToF Module Width | 5 mm | 3 – 8 |
| ToF Module Height | 4 mm | 2 – 6 |
| Receiver Length | 28 mm | 15 – 35 |
| Receiver Width | 18 mm | 10 – 25 |
| Receiver Height | 5 mm | 2 – 10 |
| Receiver X Offset | 45 mm | 20 – 70 |
| Wiring Harness Thickness | 0.3 mm | 0.1 – 1 |
| Wiring Harness Width | 8 mm | 2 – 15 |
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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