Brackets and mounts
Smart Helmet Exploded Assembly
- Bounding box
- 2336.4 × 224.1 × 296.8 mm
- Engine
- Precision B-rep
- Parameters
- 32
- Published
- September 27, 2026
Download
Free to download and use. See the terms.
The prompt
Create a dimensionally controlled 3D CAD assembly of the smart full-face motorcycle helmet shown in the reference image. Match the reference image's shape, proportions, and component arrangement as closely as possible. OVERALL DIMENSIONS: Length: 300 mm Width: 220 mm Height: 270 mm Use millimetres and maintain these overall dimensions. 1. OUTER SHELL: Create a smooth, rounded, aerodynamic full-face helmet shell with a curved crown, tapered rear, front visor opening, and projecting chin guard. Use a hollow shell with 3.5 mm wall thickness and a neck opening at the bottom. Avoid cylindrical or bucket-shaped geometry. 2. INNER LINER: Create a separate 25 mm thick padded liner following the inner shell contour. Maintain a hollow head cavity and sufficient clearance between the liner and outer shell. 3. VISOR: Create a separate transparent, curved visor, 180 mm wide, 100 mm high, and 2.5 mm thick. Fit it precisely into the front opening with two side pivot mounts. 4. NECK AIRBAG: Create a separate segmented, inflatable U-shaped neck collar around the lower sides and rear of the neck. Overall dimensions: 250 × 180 × 50 mm. Keep the centre open for the neck. 5. AIRBAG CHAMBER: Add a compact chamber near the lower rear-side of the helmet, connected conceptually to the neck airbag. 6. CO2 CARTRIDGE HOUSING: Create a separate housing measuring 100 × 25 × 25 mm, positioned along the lower side of the helmet. Include a cylindrical cartridge representation inside. 7. ASSEMBLY: Position the liner inside the shell, visor at the front, airbag around the lower neck, and cartridge housing near the lower side. Include mounting brackets and fasteners. Maintain realistic clearances and avoid overlapping parts. CAD OUTPUT: Create separate editable solid parts and a complete assembly. Use smooth surfaces, rounded edges, and accurate proportions. Generate an exploded view and export the assembly as STEP if supported. Prioritize matching the attached reference image and specified dimensions. Do not simplify the helmet into a basic geometric shape. This is a conceptual prototype, not a certified safety helmet.
Parameters
| Name | Value | Range |
|---|---|---|
| Layout gap X | 360 mm | 250 – 600 |
| Outer shell length | 300 mm | 240 – 360 |
| Outer shell width | 220 mm | 180 – 280 |
| Outer shell height | 270 mm | 220 – 320 |
| Shell wall thickness | 3.5 mm | 2.5 – 5 |
| Visor opening width | 180 mm | 140 – 220 |
| Visor opening height | 100 mm | 80 – 130 |
| Liner thickness | 25 mm | 15 – 35 |
| Liner to shell clearance | 3 mm | 1 – 10 |
| Visor width | 180 mm | 140 – 220 |
| Visor height | 100 mm | 80 – 130 |
| Visor thickness | 2.5 mm | 1.5 – 4 |
| Visor curvature radius | 250 mm | 180 – 350 |
| Visor pivot diameter | 8 mm | 4 – 12 |
| Visor pivot length | 10 mm | 6 – 20 |
| Neck collar overall length | 250 mm | 200 – 300 |
| Neck collar overall width | 180 mm | 150 – 220 |
| Neck collar height | 50 mm | 30 – 70 |
| Neck collar wall thickness | 35 mm | 20 – 55 |
| Airbag chamber length | 80 mm | 50 – 120 |
| Airbag chamber width | 50 mm | 30 – 80 |
| Airbag chamber height | 40 mm | 25 – 60 |
| CO2 housing length | 100 mm | 70 – 140 |
| CO2 housing width | 25 mm | 20 – 40 |
| CO2 housing height | 25 mm | 20 – 40 |
| CO2 cartridge diameter | 20 mm | 12 – 25 |
| CO2 cartridge length | 80 mm | 50 – 110 |
| Bracket length | 25 mm | 10 – 40 |
| Bracket width | 20 mm | 10 – 35 |
| Bracket thickness | 3 mm | 2 – 6 |
| Fastener diameter (M3-M5) | 4 mm | 3 – 5 |
| Fastener height | 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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