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: 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: 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,…
Introduction: When Standard Resins Fail Under Heat Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the years, I’ve seen many SLA Resins 3D Printing projects fail because the parts couldn’t withstand heat.…
Introduction: The Journey from Hazy to Crystal Clear Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. One of the most satisfying transformations I see in our shop is taking a hazy, translucent Clear…
Introduction: The Resin Makes the Part Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the years, I’ve printed thousands of parts using SLA 3D Printing — from detailed jewelry patterns to functional…
Introduction: Why Most Quote Requests Get Delayed — And How to Avoid That Hi, I’m Barry Zeng from Shanghai Yunyan Prototype & Mould Manufacture Factory, a manufacturing factory specializing in CNC machining, 3D printing (SLA/SLS/FDM), and sheet metal fabrication. Every…
Introduction: Choosing the Right 3D Printing Technology 3D printing has revolutionized prototyping and low‑volume production, but not all 3D printing technologies are created equal. Stereolithography (SLA), Selective Laser Sintering (SLS), and Fused Deposition Modeling (FDM) are three of the most…
Introduction: The Backbone of Modern Custom Manufacturing In an era where 3D printing and other additive technologies capture headlines, CNC machining manufacturing remains the undisputed backbone of precision custom manufacturing. From aerospace components that must withstand extreme conditions to medical…