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: From Raw Resin to Finished Product Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Raw SLA 3D Painting Surface Finishing parts come off the printer with a matte, sometimes grainy surface. They…
Introduction: Choosing the Right Material for Your Sheet Metal Project Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Every week, clients ask me: “Which material should I use for my sheet metal part…
Introduction: The Most Overlooked Steps in Resin 3D Printing Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. I’ve seen many users of Photosensitive resin 3D printing spend hours perfecting their print settings, only…
Introduction: Precision That Drives Performance Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve designed and built hundreds of Custom Injection Molds for the electronics and automotive industries. These…
Introduction: The Promise and Challenge of SLA Accuracy Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Clients come to me expecting Precision SLA 3D Printing — parts that fit perfectly, snap together smoothly,…