Optical Coordinate Measuring Machine vs Traditional CMM — Viewmm

1. Optical Coordinate Measuring Machine vs Traditional CMM — Viewmm Coordinate measuring machines (CMMs) are vital in quality control and precision engineering. Today, industries use both traditional contact CMMs and newer optical coordinate measuring machines (optical CMMs). While both serve the same purpose—measuring the dimensions of objects with extreme accuracy—they differ in how they collect data, their speed, and the types of components they can measure. What Is a Traditional CMM? A traditional CMM uses a tactile probe to physically touch the part’s surface and gather coordinate data point by point. It moves along X, Y, and Z axes using motors and encoders, giving accurate 3D measurements. These machines are highly precise but slow. They're best for rigid parts with strong surfaces like machined metals. However, contact can

2. damage delicate or flexible parts. Also, measuring soft materials may lead to errors due to probe pressure. Example: In an automotive plant, a contact CMM checks the dimensions of a metal engine block after machining. What Is an Optical Coordinate Measuring Machine? An optical CMM uses high-resolution cameras, lasers, or structured light to measure objects without touching them. It works by capturing digital images and converting them into 3D coordinates. This allows it to measure fragile, flexible, or tiny components with no risk of deformation. These systems are faster than tactile CMMs. They are ideal for high- throughput environments and real-time in-process inspection. Example: A semiconductor manufacturer uses optical CMMs to inspect wafers or MEMS components, where contact-based methods would damage the surfaces. Why Optical CMMs Matter Today With the rise in micro-manufacturing, electronic packaging, and MEMS technology, optical CMMs are more useful than ever. They can scan entire surfaces in seconds, provide digital inspection reports, and integrate with automation. They also help reduce human error and allow for inline quality checks during production, improving overall throughput. ViewMM Optical Systems: Built for Precision

3. At VIEW Micro-Metrology, we build advanced optical coordinate measuring systems designed to meet ultra-high precision requirements. Whether you're measuring photomasks, PCBs, wire bonds, MEMS, or implantable drug systems, our machines handle 2D non-contact measurement with ease. With sub-micron resolution, real-time analysis, and support for automation, VIEW systems improve productivity without sacrificing accuracy. Conclusion Both traditional and optical CMMs have a role in modern manufacturing. If your work involves fragile parts, micro-scale features, or fast throughput, optical coordinate measuring machines are the future. VIEW Micro-Metrology is here to support that future—with reliable, fast, and precise optical CMMs built for the industries of tomorrow. Website: www.viewmm.com Mail ID: info@viewmm.com