Reversed Engineering
　Purpose：
     Reserve engineering digitalized samples to get 3D data. From 3D data rebuild 3D models for data preservation or manufacture. The digitalized 3D data also can be a criterion to check CAD data, product, tooling and mold.
 

　Introduction：
     Reserve engineering is a copy process. Sometimes, a design without any engineering data but sample model, such as shoes or golf club, must be production. Reserve engineering can copy 3D data from the sample model. Traditionally, a 3D mimic milling machine copy the shape of sample and produce a full scale mold than make mass production. This kind of copy process is Analog type copy. It cannot rebuild engineering data nor revise shape. The new digital Reserve engineering system with 3D digitizer measures surface profiles to get 3D digital data quickly and precisely. From 3D digital data, engineers can rebuild, edit, and revise surfaces to get 3D models which can import to CAD/CAM system. With 3D models, engineers can create NC tooling path in CAM system. Finally, CNC machine make the mold to mass produce product. From 3D models, engineering can also get STL data. Rapid Prototyping system make a sample model. These processes are reserve engineering.
 
 


　Usability：
　Improving industrial technology brings products diversified, complicated and shorter product life cycle. Therefore, it is important to design and produce products in time and to get market share. But not all of products have original engineering data. Some shapes of products are sculpted in clay with hands by designer or model maker. Traditionally, engineers made approximated mold with complex mimic procedures still without 3D digital data. Reserved engineering can conquer these difficulties easily. Reserved engineering can quickly accomplish product design and manufacture. It can be applied to various field include auto parts, exercise accessories, medical accessories, home appliances, glass wares, shoe molds, golf clubs, ceramic wares and rapid prototyping.

　Firstly, reserved engineering uses 3D digitizer to get digitized profile coordinates of model. These digital coordinates can be reconstructed into surface model. After editing and revising, the surface model transfers to general CAD/CAM systems. From CAD/CAM systems, we can get NC tooling path for CNC machine to produce mold or get SLA file format for rapid prototyping machine to produce sample.

　Our 3D digitizer system includes contact 3d digitizer and non-contact 3d scanner. Contact 3d digitizer is good for measuring highly accurate geometric shape. Non-contact 3d scanner is good for measuring complex shape.

　Rapid prototyping technology uses CAD/CAM system to get solid model and transfer to STL format which is polygon mesh to approximate the surfaces of solid model. Complex model needs more triangular mesh to simulate model surfaces. Rapid prototyping computer gets STL Editor (Slicing Software) which can slice polygon mesh model and analyzed cross section of each layer. Rapid prototyping machine solidified each layer material either liquid or power than stack together to make a sample.

　Companies, from OEM, ODM to brand, use reserved engineering as main procedure to develop, design and manufacture products. Reversed engineering helps companies to develop ideas, improve quality and ability of product design. By way of shortening product development cycle, product meets time to market. Company get more market share and global competition advantages.