Brackets and mounts
Micro Ornithopter Structure - Fuselage, Wings & Tail
- Bounding box
- 52.0 × 167.0 × 26.0 mm
- Engine
- Precision B-rep
- Parameters
- 37
- Published
- October 9, 2026
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The prompt
Create a beginner-friendly, editable 3D CAD model of a tiny two-wing flapping flying robot (ornithopter). **Design only the basic structure in this step. Do not add the motor, battery, ESP32, camera, or mechanical linkages yet.** ### 1. Main Body * Create a lightweight central fuselage approximately 50 mm long. * Make the body narrow, aerodynamic, and symmetrical. * Include a small internal compartment for future electronics. * Add mounting points for a future motor and battery. ### 2. Two Wings * Create two symmetrical wings, one on each side of the body. * Each wing should have an approximate span of 80 mm and a chord width of 35 mm. * Design the wings to be lightweight, thin, and suitable for a small flapping-wing robot. * Add thin structural ribs and spars to support a lightweight wing membrane. * Include clearly defined wing-root mounting areas for future hinges. ### 3. Tail Structure * Add a small horizontal tail and vertical stabilizer at the rear. * Keep both components lightweight and symmetrical. * Design them to help stabilize the robot during flight. ### 4. CAD Requirements * Use millimetres for all dimensions. * Keep the body, left wing, right wing, and tail as separate editable components. * Make the left and right wings symmetrical. * Use realistic proportions and avoid unnecessary decorative details. * Show a top view, side view, front view, and isometric 3D view. * Include dimension labels for the fuselage and wings. * Export the model as STEP if supported, with STL as an additional option. **Important:** This is only the initial structural concept. Do not claim that it is flight-ready. The final design will require weight, strength, wing movement, lift, and stability testing.
Parameters
| Name | Value | Range |
|---|---|---|
| Fuselage Length | 50 mm | 30 – 80 |
| Fuselage Width | 8 mm | 4 – 20 |
| Fuselage Height | 12 mm | 6 – 25 |
| Nose / Tail Taper Length | 10 mm | 2 – 20 |
| Nose / Tail End Height | 4 mm | 2 – 10 |
| Electronics Bay Length | 25 mm | 8 – 40 |
| Electronics Bay Width | 5 mm | 2 – 12 |
| Electronics Bay Depth | 6 mm | 2 – 10 |
| Electronics Bay X Position | -2.5 mm | -15 – 15 |
| Battery Rail Length | 20 mm | 5 – 35 |
| Battery Rail Wall Thickness | 0.6 mm | 0.4 – 2 |
| Battery Rail Height | 2 mm | 0.5 – 5 |
| Motor Plate Length | 5 mm | 3 – 12 |
| Motor Plate Width | 10 mm | 5 – 20 |
| Motor Plate Thickness | 2.5 mm | 1 – 6 |
| Motor Plate X Position | 12 mm | 0 – 15 |
| Motor Mount Hole Diameter | 3 mm | 1.5 – 6 |
| Wing Span (each) | 80 mm | 40 – 150 |
| Wing Chord | 35 mm | 15 – 60 |
| Wing Membrane Thickness | 1 mm | 0.5 – 3 |
| Wing Leading Edge X | 15 mm | 0 – 25 |
| Rib Count per Wing | 5 pcs | 1 – 9 |
| Rib Thickness | 1.2 mm | 0.6 – 3 |
| Rib Height | 1.5 mm | 0.5 – 4 |
| Leading-Edge Spar Diameter | 2 mm | 1 – 4 |
| Wing Root Pad Chord | 12 mm | 6 – 20 |
| Wing Root Pad Span | 8 mm | 4 – 20 |
| Wing Root Pad Thickness | 3 mm | 1 – 6 |
| Root Hinge Pin Hole Diameter | 2 mm | 1 – 4 |
| Horizontal Tail Span | 30 mm | 15 – 60 |
| Horizontal Tail Chord | 15 mm | 8 – 30 |
| Horizontal Tail Thickness | 1.2 mm | 0.6 – 3 |
| Horizontal Tail X Position | -19.5 mm | -30 – -5 |
| Vertical Fin Height | 20 mm | 8 – 40 |
| Vertical Fin Chord | 15 mm | 8 – 30 |
| Vertical Fin Thickness | 1.2 mm | 0.6 – 3 |
| Vertical Fin X Position | -19.5 mm | -30 – -5 |
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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