Case Studies: Real Parts, Real Results
Every case study below is a real project we have delivered. No stock photos. No fictional scenarios. These are the parts we machine, the problems we solve, and the results our clients measure.
What makes QDJ different? We do not just quote your drawing. We review it. Every project starts with a DFM (Design for Manufacturability) analysis. We identify potential issues before the first cut, not after.
Client Stories
- Hardware Startup: 5 Design Iterations in 3 Weeks — How a San Francisco startup compressed 3 months of prototyping into 3 weeks
- Product Team: DFM Review Saved $12,000 — 3 design issues caught before machining saved a German manufacturer from costly rework
- Cross-Border: 8 Months, Zero Quality Issues — How a UK brand replaced 3am WeChat anxiety with documented quality control
- Maker: Custom PEEK Parts When 12 Shops Said No — Low-volume advanced materials for a medical device prototype
- Enterprise: 18 Months, 40+ Part Numbers, 100% On-Time — Fortune 500 supplier earned dock-to-stock status
Start Your Case Study
Have a challenging project? Complex geometry, tight tolerances, difficult materials? That is exactly what we are built for.