In the example bellow we show the reverse engineering process by using an Ace Skyline scanning arm and Geomagic Design X software

What is reverse engineering ?
        ” reverse engineering, also called back engineering, is the processes of extracting knowledgeor design information from anything man-made and reproducing it ” (cf wikipedia). More generally,in industry, the goal is to create a CAD file by reproducing exactly a physical object.

When reverse engineering is used in industry ?
         It seems impossible nowadays to have neither blurprint nor CAD file, but it happens in some not uncommon cases : very old parts for automotive collection, handmade parts from design and prototyping departmant, or for example when a sub – contractor company has turned bankrupt.

How to proceed ?
        1.choose the right hardware ( 3D scanner, measuring arm, CMM, Structured light digitizer,
computed tomography) with the right software ( CAD software with point cloud acquisition) depending on application needs.
        2.Acquire a point cloud from the part with a 3D scanner and measure more demanding zones with the probe under the scanner ( only available on Kreon 3D scanner)
        3.Convert the point cloud to a mesh for an easier file manipulation. It can be calculated in real time in most acquisition software.
        4.Analyze and understand how the original part has been drawn. In our video we use regions to extract and recognize geometrical zones like cylinders, plans, spheres, bevels or freefrom surfaces from the mesh.
        5.Buil the CAD model onto the mesh. Using hydrid modeling, by merging free from surfaces and mecnical enyities, is generally a good way to work.
        6.Control the result all along the process.
        7. Export the CAD model to your main CAD appication with the parametrical historic ( only availablr with a few advanced dedicated software ).

If you want to try it by yourself, download the mesh file of the car rim from the video above.

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