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The accuracy of a time-of-flight 3D laser scanner depends on how precisely we can measure the time: 3.3 picoseconds (approx.) is the time taken for light to travel 1 millimetre. The laser range finder only detects the distance of one point in its direction of view.
Computer-aided design (CAD) model used for 3D printing. The manual modeling process of preparing geometric data for 3D computer graphics is similar to plastic arts such as sculpting. 3D scanning is a process of collecting digital data on the shape and appearance of a real object, creating a digital model based on it.
3D printing, or additive manufacturing, is the construction of a three-dimensional object from a CAD model or a digital 3D model. [1] [2] [3] It can be done in a variety of processes in which material is deposited, joined or solidified under computer control, [4] with the material being added together (such as plastics, liquids or powder grains being fused), typically layer by layer.
Line beam scanner. Line beam scanning is the traditional process of industrial CT scanning. [3] X-rays are produced and the beam is collimated to create a line. The X-ray line beam is then translated across the part and data is collected by the detector. The data is then reconstructed to create a 3-D volume rendering of the part.
This method of CMM inspection is often more accurate than the conventional touch-probe method and most times faster as well. The next generation of scanning, known as noncontact scanning, which includes high speed laser single point triangulation, [3] laser line scanning, [4] and white light scanning, [5] is advancing very quickly. This method ...
3D printing - or additive manufacturing; 3D scanning - replicating objects to 3D models to potentially 3D print; Comparison of computer-aided design software; 3D Manufacturing Format - open source file format standard developed and published by the 3MF Consortium; PLaSM - open source scripting language for solid modeling; 3D printing processes
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