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        1. Industry applications

          Racing suspension system 3D scanning

          Racing suspension system 3D scanning case

          Hualang engineers used the camera-type 3D scanner “HL-3DS+” to scan the car suspension for a team at the Guangdong International Circuit. Customers need to use the high-precision 3D data acquired by the scanner to debug the car suspension system, so that the car can show excellent performance in the race. .

          Practical problems

          The suspension system is one of the most difficult parts of the whole car to be scanned. Its structure is complex, the parts are fine, and there are many dead ends.

          The customer requested that the four suspension systems of the car be on the same coordinates.

          Hualang solutions


          Preparation: Hualang engineer is spraying the developer

          The racing suspension system is an entire support system consisting of springs and shock absorbers between the body and the tire. It has the function of supporting the body and improving the ride. Different suspension settings will give the driver a different driving experience. The seemingly simple suspension system combines multiple forces to determine the stability, comfort and safety of the car. It is one of the most critical components in the entire car.

          A team at the Guangdong International Circuit wants to analyze the suspension system of the car through three-dimensional data. With accurate 3D data, the debugging of the car will be more scientific. After the Hualang engineers with rich scanning experience in the automotive industry arrived at the scanning site, they quickly developed a scanning plan based on the characteristics of the car and completed the scanning work to meet customer needs.

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          Stick the logo point, code point and the chassis of the car with the target

          Customer requirements:  1. need to obtain the data of the car suspension system, especially the shock absorber and swing arm, as well as the precise position of the screw holes on each sheet metal

                               2. The four suspension systems need to be on the same coordinate

          Equipment used: 3D scanner "HL-3DS+", 3D photogrammetry system "HL-3DP"

          Total time: 4.5 hours

          Scan results: one success, accuracy 0.06mm.


          Hualang engineers are using photogrammetry systems to obtain code point coordinate information.


          Scanning steps:
          1. Use 3D photogrammetry system:
                  The technology of many common 3D scanner manufacturers only stays on the level of whether the object can be scanned. Facing the problem of scanning four suspension systems and guaranteeing the same coordinates, the data connected to the target area is generally scanned for transition, such as scanning the drive shaft to link the front and rear suspension systems. Hualang engineers used the 3D photogrammetry system HL-3DP to record the position information of all code points and then scan them. Every data scanned by the scanner will be automatically put into the 3D photogrammetry system. Corresponding coordinates, so that not only need to scan the transitional objects, but also reduce the number of scans and reduce the error caused by the stitching. The yellow poles in the picture are heat-resistant deformation alloy target rods. Each target rod has been tested and certified by an authoritative organization. It will play a role of scale in the photogrammetry process, providing more guarantee for high-precision 3D data acquisition. .


          Hualang engineers are using a 3D scanner to scan the car suspension system

          2, 3D scanning
              HL-3DS+ is an industrial-grade camera-type 3D scanner with a single-accuracy 0.02mm and a photogrammetric measurement of 0.05mm/4m. It uses a military carbon fiber frame, 17-digit ring-coded calibration system, and 13-step calibration. A number of technologies such as automatic splicing of the mark point ensure high-precision 3D data of the car suspension, guarantee the performance of the car and protect the safety of the driver. During the scanning process, Hualang engineers flexibly move, raise the tripod, control the angle of the gimbal change 3D scanner to avoid scanning dead angles, and complete more than 60 data scans at one time. Frequently mobilizing the fuselage, scanning and splicing of more images, this is one of the methods to test whether a set of 3D scanners is stable. However, when consumers purchase 3D scanners, it is easy to ignore the problem of equipment stability. Then the HL-3DS+'s own scanning software starts processing 3D data, automatically splicing, and automatically deleting duplicate data. In less than 10 minutes, a point cloud data is generated, and customers can convert to STL/IGS/PLY/ASC/CAD according to their needs.



          Overall three-dimensional data of the racing suspension system (STL format)



          3D data hanging on the left front end of the car



          Racing rear suspension system 3D data bottom view



          Partial 3D data of the rear suspension system of the car


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