Content By Daniel Brown

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By: Daniel Brown

“A 3D scanner collects distance information about surfaces within its field of view,” says civil engineer Mostafa Abdel-Bary Ebrahim. “The ‘picture’ produced by a 3D scanner describes the distance to a surface at each point in the picture. This allows the three-dimensional position of each point in the picture to be identified.”

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By: Daniel Brown

A new white-light 3D scanner using hybrid positioning to scan large objects and output a file with no post processing has recently been released.

The Go!SCAN 3D can scan up to 10 times faster than standard 3D scanners. It also has a large 15 in. by 15 in. scanning field of view and a measurement rate of 550,000 measures per second. These allow the device to scan a car’s gas tank in about two minutes—with a final 3D mesh exported during that same time.

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By: Daniel Brown

It’s no secret that manufacturing processes have become more complex. Manufacturers have tried hard to infuse innovation into their products, usually as new features, technologies, or attributes. However, coming up with innovative product features is not enough to create a competitive advantage and certainly not enough to deter competitors from copying a product. This is one reason why an increasing number of companies are focusing instead on bringing innovation to their manufacturing processes.

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By: Daniel Brown

A lot has happened since computer-assisted metrology was invented. In its early stages, computer numerical controlled (CNC) machines were used to control manufactured parts, and it was not until the 1970s that computer-controlled coordinate measuring machines (CMMs) appeared on the market and brought increased precision and acquisition speed.

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By: Daniel Brown

Traditionally, 3-D dimensional inspection was performed in the quiet, stable, spotless, and controlled environment of quality labs. But during the past few decades, manufacturers have been increasingly interested in measuring devices that are both comprehensive in scope and portable. Nowadays, measurement has broken outside the labs, mainly because successful companies need to be able to produce quickly and accurately to keep their competitive advantage.

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By: Daniel Brown

Reverse engineering and 3-D scanning are often considered synonyms. But 3-D scanning is also an efficient way to compare as-built physical objects to theoretical digital 3-D models (i.e., CAD models), and thus an essential asset to every quality control (QC) department’s tool box. Today’s 3-D scanners offer excellent accuracy, are easy to use, and are fully integrated by all major 3-D inspection software. However, three basic questions remain: When should a part be scanned? What features should be scanned? What features should be hard-probed?

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