Client Confidential
On-Demand Premium Vaporizer
Our client aimed to leverage an innovative technology and design architecture to develop a premium, handheld, battery-powered vaporizer engineered around a true on-demand forced-air convection architecture. The system combines breath-actuated airflow, a high-response mesh heater, and closed-loop air temperature control to deliver rapid vapor generation without session-based preheating. The result is a refined user experience.
The client’s internal team had developed an early-stage prototype and initial system architecture. They engaged our engineering team to improve the user experience, finalize the integrated mechanical and electrical hardware design, optimize thermal performance, build and test mature prototypes, and prepare the product for manufacturing release.
At its core, the vaporizer is a tightly coupled electro-thermal-mechanical system composed of:
- Forced-air convection mesh heater powered by user inhalation
- Closed-loop temperature control using pulse-width modulation
- Breath detection system incorporating a pressure sensor
- Separated electronics and heater architecture
The goal was a manufacturing ready design based on preferred concept, form factor and industrial design. One that incorporates disposable dose packaging concept, rechargeable electronics with accompanying firmware.
Contributions
- Mechanical Design & Electronics Packaging
- Mouthpiece & Enclosure Development
- Custom Electronics Design & Integration
- Lightpipe Design and Integration
- Prototyping & Iterative Validation
- Design for Manufacturing (DFM/DFA)
Impact
The design evolved from a user-driven concept into a fully engineered, manufacturing-ready consumer product. By combining mechanical design and packaging, custom electronics development, and iterative prototyping, the project successfully transformed the concept design into mature design with functional prototypes ready for manufacturing transfer.
Engineering Challenge
The project required balancing user experience, heater performance, manufacturability, and cost within a compact handheld form factor.
Key system challenges included:
- Achieving a clean, premium aesthetic with satisfying weight and feel
- Designing an intuitive, cleanable, and reliable mouthpiece subassembly and attachment mechanism
- Engineering a heater subsystem capable of uniform, repeatable heating
- Integrating a single-button interface with visible light-pipe status indicators
- Packaging a custom rigid-flex PCB, battery, heater, sensor, and LED optics in a dense enclosure
- Designing a die-cast housing suitable for volume manufacturing
The complexity lay in harmonizing mechanical architecture, electronics integration, airflow management, and user interaction into a seamless consumer product.
Engineering & Design Approach
We began by reviewing the overall system layout to improve integration between mechanical and electrical subsystems.
1. Mouthpiece & Enclosure Development
- Established optimized component packaging strategy
- Developed new mouthpiece attachment concepts to enhance intuitive interaction
- Refined the selected concept for manufacturability and durability
- Updated the internal architecture for airflow management and to accommodate heater, rigid-flex PCB, battery, button, and light pipe
- Engineered enclosure geometry specifically for die casting, incorporating draft angles and tooling considerations
A major focus was refining the heater subassembly to ensure uniform heating performance while maintaining structural robustness and cost efficiency.
2. Custom Electronics & Firmware Optimization
Our electrical engineering team developed production-ready electronics tailored to performance and packaging constraints.
Electronics Development Highlights
- Designed complex custom rigid-flex PCB schematics and layout
- Conducted heater power studies and battery performance modeling
- Optimized PWM control algorithms for closed-loop temperature regulation
- Evaluated and refined light-pipe configurations for brightness, clarity, and cost
- Integrated breath detection and soft-start routines for improved user experience
3. Prototyping & Iterative Validation
Rapid prototype builds were central to maturing the design.
We fabricated and tested multiple functional builds to evaluate:
- Mouthpiece ergonomics and user interaction
- Optical brightness and uniformity of LED light-pipe status indicators
- Heater power delivery and thermal consistency
- Battery performance and power management
- Mechanical fit, tolerance stack-up, and enclosure integrity
Each iteration incorporated refinements across mechanical design, electronics packaging, thermal performance, and usability-driven by structured testing and stakeholder feedback.
4. Design for Manufacturing (DFM/DFA)
As the design stabilized, we integrated DFM/DFA principles to ensure smooth manufacturing transfer.
Manufacturing Optimization Included:
- Electronics cost optimization and assembly simplification
- Refinement of die-cast enclosure geometry
- Tooling-ready draft angles and feature adjustments
- Assembly sequencing improvements
- Preparation of production documentation and design package
The design package was transferred to the client and their contract manufacturing partner.
RESULTS
The vaporizer design evolved from an early-stage concept into a fully engineered, production-ready commercial product.
- Integrated mechanical and electrical architecture
- Miniaturized rigid-flex electronics platform
- Optimized heater subsystem with closed-loop temperature control
- Production-ready die-cast enclosure
- FCC-compliant commercial design
- Manufacturing-ready documentation package
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