Advanced 3D Industrial Design for Smart Toothbrush (Future-Upgradeable Architecture) — WITH NDA

IMPORTANT — NDA REQUIRED

The freelancer must sign an NDA (Non-Disclosure Agreement) before receiving any detailed documents.
No part of this design, concept, internal mechanism or visuals may be shared publicly or reused in other projects.

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PROJECT OVERVIEW

We are developing a next-generation smart toothbrush for a private medical technology platform.
This is a consumer-grade physical product requiring a premium, modern, clinical design similar to Apple / Dyson quality.

The toothbrush must include one powerful core feature in the first version, and the internal structure must support multiple future hardware upgrades without changing the outer body.

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VERSION 1 — MUST-HAVE SIGNATURE FEATURE

The first prototype must include at least ONE compelling function:

Smart Pressure Tracking + Live Brushing Feedback LED Ring
• Built-in precision pressure sensor
• LED ring changes color depending on brushing pressure
• Green — optimal
• Yellow — low pressure
• Red — high pressure
• Logged brushing session data (via BLE)

SCOPE OF WORK (DETAILED)

1. 3D Industrial Design
• Full external body design
• Replaceable brush head
• LED feedback ring (top or near brush head)
• Waterproof IPX7 body
• Ergonomic grip
• Hidden button system

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2. Internal Engineering Layout

You must design:
• Motor cavity
• Battery compartment
• PCB mounting area
• Pressure sensor position
• Internal LED ring channel
• AND EMPTY RESERVE ZONES for:
• future optical sensor
• future infrared window
• future temperature sensor
• future additional PCB extension
• future wireless charging coil (if not added now)

These are empty placeholders only — to ensure upgradeability.

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3. Deliverables

You must provide:

A. 3D Production Files
• .STEP
• .STL
• .OBJ
• .FBX (optional)

B. 3D Renders
• 6–10 premium realistic renders
• White background + marketing-style angles

C. Animation (REQUIRED)

Choose one:

Option 1 — Short Animation (8–12 sec)
• Full rotation
• LED ring demonstration
• Exploded internal view
• Motor + battery + PCB placement

Option 2 — Web-ready 3D model
• .glb or .gltf
• Optimized for embedding into a website (Three.js / Model Viewer)

(At least one of the two animation formats MUST be delivered.)

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TECHNICAL REQUIREMENTS

Minimal Required Components (Version 1)
• Sonic vibration motor
• Rechargeable battery
• PCB with BLE
• Pressure sensor
• LED feedback ring
• Button (hidden or flush)
• IPX7 waterproof inner chassis

Future Components (Placeholder ONLY)
• Optical spectral sensor
• Micro temperature sensor
• Infrared window
• Extra microcontroller socket
• Sensor expansion ports
• Wireless charging coil space

(These components are NOT added in V1 — only physical space is reserved)

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WHAT WE PROVIDE AFTER NDA

After NDA is signed, we will provide:
1. Full technical specification PDF
2. Internal sensor measurements
3. PCB size reference
4. Branding palette
5. Animation samples
6. Usage scenarios
7. Human-factors ergonomics notes
8. Final dimension requirements

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BUDGET

We are looking for high-quality work.
• Full package budget: $450 – $900
(depending on experience and animation quality)

We are NOT looking for cheap mass-produced designs.
We prefer designers with proven experience in smart devices.

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TIMELINE
• Concept drafts: 7 days
• Final 3D model: 14 days
• Animation: 3–7 days
Total expected: 21–28 days

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TO APPLY

Send:
• Portfolio of consumer electronics
• 1–2 example animations
• Confirmation of NDA acceptance
• Estimated timeline & cost

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RESTRICTIONS
• You may NOT share this project anywhere
• You may NOT reuse this design
• You may NOT post it in your portfolio
• You may NOT discuss the project with third parties
• Violating these terms terminates the contract immediately