Introduction: The Production Gap Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. One of the most painful moments in product development is the “production gap” — after you’ve finalized your design but before…
Introduction: Every Second Saved Is Profit Earned Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve optimized hundreds of Injection Molding processes — shaving seconds off cycle times while…
Introduction: The Volume Tipping Point Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. One of the most common questions I get is: “I love 3D printing for prototypes, but at what quantity does…
Introduction: The 50‑Part Crossroads Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. One of the most common questions I get is: “I need 50–200 custom parts. Should I invest in injection molding tooling,…
Introduction: Why Understanding the Injection Molding Process Matters for Buyers and Designers Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve been involved in the production of thousands of…
Introduction: Defects Cost Time and Money — Here’s How to Fix Them Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve troubleshot thousands of defective Injection Molded Parts —…