Brackets and mounts
Wearable Child Safety Tracker - Exploded Multi-Part Model
- Bounding box
- 417.0 × 15.0 × 6.9 mm
- Engine
- Precision B-rep
- Parameters
- 40
- Published
- October 7, 2026
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The prompt
Create a compact, premium child-safety location tracker designed to be discreetly secured within a dense bundle of hair near the nape of the neck. DESIGN FORM: * Overall target size: approximately 28 × 15 × 6.5 mm. * Create an appealing, highly ergonomic organic form inspired by the smooth, minimal, rounded proportions of premium wireless earbuds, but DO NOT copy an AirPods product. * Use a smooth capsule/pebble-like body with flowing curves and no sharp edges. * Slightly curved underside to follow the child's head. * Low-profile, lightweight and visually unobtrusive beneath hair. * Soft silicone/TPE outer body, approximately Shore 30A–50A. * No screen, buttons, LEDs, logos or unnecessary features. INTERNAL ARCHITECTURE: Create a protected miniature internal chassis inside the soft housing containing: * miniature PCB * GNSS positioning module * low-power cellular communication module * microcontroller/power-management electronics * thin Li-Po rechargeable battery, approximately 18 × 9 × 2.5–3 mm * flexible printed antenna positioned toward the outer side of the device * protected charging contacts Keep the electronics compact and realistically arranged rather than oversized. HAIR ATTACHMENT: Create an integrated flexible hair-gripping mechanism on the underside/rear of the device. * Use soft TPE/silicone. * Grip a broad bundle of hair, not a few individual strands. * Gripping zone approximately 10–12 mm wide and 8–12 mm long. * Use multiple rounded flexible friction ribs rather than sharp teeth. * Approximately 8–12 rounded ribs on each gripping surface. * Rib height approximately 0.5–0.8 mm. * Rib spacing approximately 0.6–1.0 mm. * Smooth hair-entry opening approximately 5 mm. * Use distributed friction and elastic deformation rather than excessive clamping force. * Include a curved hair-retention path so the hair cannot easily slide straight out. * No adhesives and no sharp metal parts. SAFETY: Include a conceptual controlled-release mechanism that keeps the device secure during normal activity but can release under excessive pulling force to reduce the risk of hair/scalp injury. Do not specify an unvalidated release force. ERGONOMICS: * Rounded R1–R2 mm minimum external transitions. * Smooth silicone surface. * No exposed screws or electronics. * No sharp projections. * Low profile for prolonged wear and sleeping comfort. * The housing should conform naturally to the curvature of the head. FINAL CAD: Create: 1. Fully assembled tracker. 2. Section view showing PCB, battery, GNSS/cellular electronics and antenna. 3. Close-up of the hair-gripping mechanism. 4. Exploded view showing outer housing, internal chassis, electronics, battery and hair-grip mechanism. The final product should look like a sophisticated, realistic industrial-design prototype: extremely small, smooth, ergonomic, premium and unobtrusive—not like a generic GPS box.
Parameters
| Name | Value | Range |
|---|---|---|
| Layout Gap | 40 mm | 20 – 100 |
| Housing Length | 28 mm | 20 – 40 |
| Housing Width | 15 mm | 10 – 25 |
| Housing Height | 6.5 mm | 4 – 12 |
| Housing Fillet Radius | 2 mm | 0.5 – 3 |
| Chassis Length | 22 mm | 15 – 30 |
| Chassis Width | 11 mm | 8 – 16 |
| Chassis Height | 4 mm | 2.5 – 6 |
| Chassis Fillet Radius | 1.5 mm | 0.5 – 2.5 |
| PCB Length | 18 mm | 12 – 25 |
| PCB Width | 9 mm | 6 – 14 |
| PCB Thickness | 0.6 mm | 0.4 – 1.2 |
| GNSS Module Length | 7 mm | 5 – 10 |
| GNSS Module Width | 7 mm | 5 – 10 |
| GNSS Module Height | 1.2 mm | 0.6 – 2.5 |
| Cellular Module Length | 9 mm | 6 – 14 |
| Cellular Module Width | 8 mm | 5 – 12 |
| Cellular Module Height | 1.4 mm | 0.8 – 3 |
| MCU/Power IC Size | 4 mm | 2 – 8 |
| MCU/Power IC Height | 0.8 mm | 0.4 – 2 |
| Battery Length | 18 mm | 12 – 25 |
| Battery Width | 9 mm | 6 – 14 |
| Battery Thickness | 2.5 mm | 1.5 – 4 |
| Antenna Length | 12 mm | 8 – 18 |
| Antenna Width | 6 mm | 4 – 10 |
| Antenna Thickness | 0.2 mm | 0.1 – 0.6 |
| Contact Pad Length | 2 mm | 1 – 4 |
| Contact Pad Width | 1.5 mm | 0.8 – 3 |
| Contact Pad Height | 0.5 mm | 0.2 – 1.5 |
| Silicone Lip Width | 0.8 mm | 0.5 – 2 |
| Hair-Grip Length | 12 mm | 8 – 20 |
| Hair-Grip Width | 10 mm | 6 – 16 |
| Hair-Grip Height | 3 mm | 1.5 – 6 |
| Number of Ribs | 10 | 8 – 12 |
| Rib Height | 0.6 mm | 0.5 – 0.8 |
| Rib Spacing | 0.8 mm | 0.6 – 1 |
| Hair-Entry Opening | 5 mm | 3 – 8 |
| Release Latch Length | 6 mm | 4 – 10 |
| Release Latch Width | 4 mm | 2 – 8 |
| Release Latch Height | 2.5 mm | 1 – 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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