Graph 1 well-known, the product nowadays in the market life is very brief, the client is very tall to the acceptance of new product, the product needs to be updated ceaselessly, should shorten again at the same time the time that rolls out market. The product of some types does not suit to undertake manufacturing production with groovy gimmick. Groovy method is to point to will construct with CAD product → makes example → affirm sample → produces a product, for example toy (the product with character, fair young, animal, complex line) , if use CAD to construct line, the time of need is longer, and the situation that can produce the result that client of short of of curt, exterior wants line, and CAD is tectonic this kind of product, the space that because of 3D the graph takes up is very large, the demand that configures to computer so is quite high. Below this kind of circumstance, converse project showed its advantage. Subsidiary of force abundant group -- force is lively fast production limited company accumulated old experience in converse engineering field, the 3 application case of converse project basically introduced below, include: Assist hand board make, obtain beg data to reach instead detect action. Graph one of 2 application -- an industry that the production toy that assists hand board is the most commonly used and converse project. The characteristic of this industry is: The product is pushed to the market fast, cycle is short, and exterior is on. The client needs to affirm the exterior, but the 3D graph that constructs with CAD lets a client undertake affirming, not be an easy thing. Because use computer software to view 3D plan, need client combines his imagination, ability evaluates its about, and modification 3D graph needs to rely on imagination as much. Below this kind of circumstance, with the hand board / sculpture makes means undertake sample is made, undertake modification again, better than using CAD to undertake designing, directer. If need to revise subtle place, if increase round role, use sample to undertake modification needing a few minutes only, till till sample gets completely,the client admits really. But if be use CAD design, needs modification time is longer, and occasionally software may not allows to revise. Graph the 3 technological process that use converse project technology to undertake a such sample makes are: Sample → collects model of → of system of data → converse project to reframe client of → RP → affirms → produces flow next. Bright company basically uses power the COMET sensor of German Steinbichler Optotechnik will have converse project. Applied range of the system is very wide, reside things from car component, home (of curtain rod of window partially) make to food (chocolate mould) , can change processing through three-dimensional data and acquire three-dimensional image (the graph is shown 1 times) . Whole process is very simple. Get an in kind from client place commonly (if pursue 2) , through after Steinbichler Optotechnik scans, getting nodding cloud data. According to these data, can use Steinbichler Optotechnik software or by the Geomagic software of American Raindrop company, tectonic polygonal curved surface, output CAD archives next, recycle machinery produces hand board. If client adversary board satisfactory word, can have formal production. Graph of 4 application -- acquire the product that tries data to already rolled out market instead, because time is longer, already lost competition ability on market, need updates exterior or immanent configuration ceaselessly, in order to attract customer. If the product lost original 3D graph archives, converse project can be helped solve this problem. Seek data instead according to original product, modification exterior or structure go making new product, offerred simple and quick way for stylist. Nextpage pursues for example the head portrait objective of 3 lost original 3D graph archives, use Geomagic software, the data nodding the cloud that scanning obtains, reexport can be produced reach modification CAD record. Geomagic software is the software that makes converse project technically, can support different CAD scheme pattern. Geomagic Qualify can be mixed in the CAD model of the product the production of the product between the graph that implementation knows quickly, easily is compared, go up in order to have first item inspection, product line or be examine inside the workshop, size of three-dimensional geometry shape tags trend analysis, 2 peace keeping reach automatic report to generate. Geomagic Studio can build accurate digital model automatically according to any objective component. This software offerred more alternative to burgeoning applying, the big batch production that is like custom-built equipment, production pattern that creates namely surely namely and those who do not have any several matrix component is automatic build again. Graph of 5 application -- detect converse project still can take on the part of QC, report error. Some products, because volume is larger, line is complex (be like radian) , callipers or other measurement instrument hard measurement its data, at this moment we are OK the product that will produce / sample, collect data with converse project, finished 3D plan and original 3D make contrast. When two 3D graph archives overlaps together, appear the place of different color, the product that is original 3D intent and production has the place of the error. The size of the error, can conclude according to color. Graph 4 be above the error of mentioned toy detects, should detecting also undertake through Geomagic software. The 3D graph that obtains through converse project and original 3D intent overlap oppose is compared, gules part is the deviation of plus, and the deviation that blue part is negative number. Stylist is OK according to these data, go modifying the process that 3D pursues or produces, will satisfy the client's requirement. Graph 6 progress to what be not contact from contact, make converse project technology ceaseless promotion. Blame contact is optical / laser software, also change with intelligence promoted its the function, each respect such as fineness to speed, essence, accuracy has higher demand. Converse project before because product surface is too smooth and bring about what cannot have data to collect, need the contrast aid on gush. And the equipment of new generation, be aimed at the product of smooth face, need gush contrast aid to be able to collect data directly no longer, and the surface that won't destroy original product. Graph 7 CNC Milling