Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. If you’ve ever needed a replacement part for an old machine — and the manufacturer told you it’s discontinued — you know the pain. Or…
Introduction: The Steel Behind the Spark Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Have you ever held a precision metal part — a bracket, a gear, or a housing — and wondered,…
✋ Hey, I’m Barry Zeng — Senior Manufacturing Engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past 12 years, I’ve helped hundreds of clients take their part designs from a napkin sketch (or a CAD file) to…
Introduction: The Steel Behind the Spark Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. My daily bread? Helping clients pick between 3D printing and CNC machining. The wrong choice can crack a mold—or…
Introduction: The Day I Learned That CNC Doesn’t Forgive Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. I’ve been building injection molds for 12 years — long enough to know that a CNC…
Introduction: The Day Your Machine Stops — and How to Fix It Fast Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Picture this: it’s 3:00 PM on a Friday. Your most important production…
Introduction: Choosing the Right Manufacturing Process Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past 17 years, I’ve helped hundreds of clients decide between two of the most common manufacturing processes:…
Introduction: The Challenge of Programming CNC Spare Parts Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. For over 17 years, I’ve programmed and machined thousands of CNC Spare Parts — from replacement gears…
Introduction: The Spare Parts Dilemma Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Every week, I help clients produce Custom Non-Standard Spare Parts — components that are no longer available from the original…
Introduction: The Fundamental Manufacturing Choice Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past 12 years, one of the most common questions I hear from designers and procurement professionals is: “CNC…