3D scanning technologies are commonly used in First Article Inspection, where high accuracy and extremely fine resolution are required in order to verify that a physical part has been produced according to production drawings. Inspection is another valuable use of 3D scanners, allowing parts to be rapidly checked to ensure that manufacturing tolerances have been met. Inspection Using 3D Scanning Technologies
#3d scanner for engineering registration
This process requires detailed and intricate image and position registration – fortunately, many companies exist that have mastered this process and provide solutions for these difficult problems. Some intricate objects, such as large sculptures, require the use of stationary and handheld scanners to reconstruct the entire surface.Spray on solutions exist that can effectively dull a surface prior to scanning. 3D scanning works better on matte finishes than highly reflective surfaces, which reflect white light.Bright white light sources can be detrimental to 3D scanning technologies, requiring many outdoor laser scanning projects to be conducted after daylight hours.White light scanning, CT scanning and photo image based systems are alternate methods that are being used for 3D scanning applications. Digitizing is often limited to smaller objects, while 3D laser scanning is more versatile, and can be used to scan large objects, such as vehicles or buildings. Digitizing is more accurate for industrial reverse engineering applications when precision of a complex part is desired, whereas 3D laser scanning is far more desirable for non-standard or organic shapes such as sculptures or a person’s face. Digitizing is a contact based form of 3D scanning in which a point or ball probe is scanned over points on the surface of an object to record geometrical position information. Laser scanning is performed without making contact with the object. Several types of laser scanners exist, including line, patch, and spherical. Regions of an object are scanned at once, allowing hundreds or thousands of closely positioned points to be surveyed at once. Surface data is captured by a camera sensor mounted in the laser scanner which records and saves three-dimensional information to a model. Laser scanning passes a laser line over the surface of an object. The handheld scanner used for this application is capable of scanning ½ million points per second with up to 30 sq.m resolution accuracy and 60 sq.m volumetric accuracy. The purpose of the project was historical preservation so that the memorial could be recreated in the future if it were ever to suffer damage. 3D scanners have been used to scan vehicles, airplanes, historic monuments, ships, submarines, buildings, monuments, sculptures, consumer products, to name a few.Īn example of a complex 3D scanning problem is the 3D scan generation performed by Creaform using their HandyScan3D handheld unit in combination with a long-range scanner of the United States Marine Corps War Memorial replica, located at the Marine Corps Recruit Depot in South Carolina. Scanning laser technology then surveys the 3D contour of the surface and saves the geometrical data to a CAD model. Some are stationary, requiring the part to be brought to the scanner. To digitally reconstruct a damaged part so that it can be reproduced in its originally intended form using rapid prototyping or CNC technologiesģD scanning technologies come in many shapes and forms.To perform dimensional and comparative analysis of an object.Redesign a part without manufacturing defects.
#3d scanner for engineering update
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