Project Background
A cross-border oral care brand client wanted to launch a portable household water flosser for global e-commerce and retail markets. They hoped to achieve differentiated appearance, reliable performance, competitive cost, and fast mass production. We provided full-process customized development from Idea → Appearance Design → Structural Design → Function Definition → Prototype (Handboard).
1. Idea & Demand Confirmation
- Clarify target markets: Europe / America / Asia
- Product positioning: mid-range portable, travel-friendly, waterproof, long battery life
- Core demands: private label customization, stable pressure, low noise, easy cleaning
- Deliverable: product development specification (PDS)
2. Appearance Design
- Style: minimalist, ergonomic grip, compact body
- Color & finish: matte / glossy optional, customizable brand color
- Size: portable for travel and home use
- Logo & surface treatment: silk screen, laser engraving supported
- Output: 2D renderings + 3D appearance model + CMF design
3. Structural Design
- Internal structure layout: motor, pump, battery, water tank, circuit board
- Core structural innovations:
- Gravity ball structure for complete water absorption
- Spring buffer structure to reduce noise & vibration
- Independent waterproof structure (IPX7)
- Molding feasibility analysis, assembly optimization, cost control
- Output: 3D structural model, BOM, assembly drawing
4. Function Definition
- Modes: 3–5 cleaning modes (normal / soft / pulse / strong / custom)
- Water pressure: 30–120 PSI adjustable
- Battery: 1400–2000 mAh, USB rechargeable, 2–4 weeks usage
- Waterproof: IPX7 full body washable
- Nozzle: 360° rotatable, detachable for cleaning
- Certification compliant: FDA, CE, RoHS, FCC
- Output: function test standard & verification plan
5. Prototype (Handboard) Model
- CNC handboard / 3D printing prototype
- Verify appearance, size, assembly, grip, and structure rationality
- Functional prototype testing: water pressure, waterproof, noise, battery
- Client confirmation before mold opening
- Output: approved prototype + test report
Project Result
The client successfully launched the customized water flosser with stable quality, strong competitiveness, and smooth mass production. It achieved good sales on Amazon and offline retail channels.


