By Nel PreTech
Industrial 3D scanning is a non-contact measurement process that captures the geometry of a physical part and converts it into highly detailed digital data. Technologies such as blue light scanning and laser scanning create millions of measurement points across a surface to evaluate dimensions, form, and manufacturing accuracy. 3D scanning can be used on a wide range of components, including: ● Injection molded plastics ● Castings ● Aerospace and turbine components ● Medical devices ● Automotive parts ● Additively manufactured components ● Consumer products ● Rubber and elastomer parts ● Tooling and fixtures Both simple and highly complex geometries can be scanned. Accuracy depends on the scanner, part size, material, and inspection requirements. Metrology-grade systems can achieve extremely high precision suitable for dimensional inspection, GD&T analysis, and quality verification. At Nel PreTech, scanning workflows are designed to support demanding industrial and manufacturing applications where repeatability and measurement confidence matter. A Coordinate Measuring Machine (CMM) collects discrete measurement points using a touch probe, while 3D scanning captures millions of data points across an entire surface. 3D scanning is often beneficial for: ● Complex freeform geometry ● Organic surfaces ● Rapid inspection workflows ● Full-surface deviation analysis ● Large data collection requirements CMM inspection and 3D scanning are frequently complementary technologies rather than direct replacements. Industrial 3D scanning is widely used in: ● Aerospace ● Automotive ● Medical device manufacturing ● Defense ● Consumer products ● Energy and power generation ● Plastics and injection molding ● Additive manufacturing Manufacturers use scanning to improve quality, validate tooling, reduce scrap, and accelerate product development. Yes. Depending on the application, 3D scanning can help identify: ● Warpage ● Flash ● Sink ● Surface deformation ● Assembly fit issues ● Wear patterns ● Dimensional nonconformance ● Tool wear or damage When paired with advanced inspection software, scan data can reveal deviations that may be difficult to identify using traditional measurement methods alone. Scan times vary depending on part size, complexity, accuracy requirements, and inspection scope. Some scans can be completed in minutes, while larger or more detailed inspection projects may require additional setup and analysis time. Modern optical scanning systems are significantly faster than many traditional point-by-point inspection methods. Yes, although highly reflective, transparent, or very dark surfaces can present challenges for optical systems. In some cases, a removable scanning spray or surface preparation may be used to improve data capture quality. Experienced scanning technicians select the appropriate workflow based on the material and inspection objectives. A color deviation map visually compares a scanned part against CAD data or nominal geometry. Different colors indicate where the material is above or below tolerance, making dimensional variation easy to interpret. These reports are commonly used for quality control, tooling validation, and first article inspection. Yes. 3D scanning is commonly used to support first article inspection by rapidly collecting dimensional data across an entire part surface. This approach can help manufacturers: ● Accelerate inspection timelines ● Validate tooling and production processes ● Document dimensional compliance ● Identify trends early in production Yes. Optical 3D scanning is a non-contact technology, making it suitable for delicate, soft, or flexible components that could deform under traditional touch-probe measurement methods. 3D scanning systems can inspect components ranging from very small precision parts to large assemblies. ZEISS METROTOM 1500 (225KV) CT SCANNER Maximum Part Size: Cylindrical volume up to 615 mm & max height 800 mm OR up to 330 mm diameter x 870 mm tall Area of interest resolution: 7 microns ZEISS METROTOM 800 (130 KV) CT SCANNER Max part size: Cylindrical volume up to 275 mm & max height 360 mm Area of interest resolution: 3.5 microns ATOS Q BLUE LIGHT, OPTICAL NON-CONTACT SCANNER Measuring area: [mm²] 100 × 70 – 500 × 370 Start a conversation with one of our 3D scanning experts for information on part size and our other 3D scanning technologies. Yes. Accurate dimensional data can help manufacturers: ● Reduce scrap and rework ● Identify process variation earlier ● Improve tooling validation ● Shorten inspection cycles ● Improve assembly fit and function ● Reduce downstream quality issues Faster access to measurement data often leads to more informed manufacturing decisions. Blue light scanning is an optical measurement technology that projects structured blue light patterns onto a part surface to capture highly detailed geometry. Blue light systems are commonly used for: ● Precision dimensional inspection ● GD&T analysis ● Tool and mold validation ● Surface comparison ● Complex geometry measurement Not entirely. 3D scanning is a powerful inspection technology, but the best inspection strategy often combines multiple metrology methods, including CMM inspection, CT scanning, optical measurement, and traditional gauges. The right approach depends on the application, tolerance requirements, geometry, and manufacturing goals. Outsourcing provides access to: ● Metrology-grade equipment ● Experienced inspection professionals ● Advanced analysis software ● Faster project turnaround ● Scalable inspection capacity ● High-end measurement capabilities without capital equipment investment Many companies outsource scanning to support overflow inspection work, specialized projects, or applications requiring advanced expertise.
