Aim at the property of foot orthosis , the building of foot orthosis can be realized by means of surface modeling . and the three - dimensional simulation model of foot orthosis is displayed through opengl technology 针对足底矫形器的形状特性，使用表面建模方式对足底矫形器进行造型，并利用opengl技术显示足底矫形器的三维模型。
Then , the composition of foot orthosis cad system have been analysed , and the funtion of every parts has been elaborated separately , including the digital measurement of model , the digital modeling of foot orthosis , computer three - dimensional surface modeling , man - machine interaction and so on 本文重点分析了足底矫形器cad系统的组成，并针对各组成部分的功能分别进行了阐述，包括足底矫形器模型的数字化测量、数学模型的建立、计算机三维表面模型建模、人机交互等等。
Because the domestic study for cad / cam technology started just in recent years , the technical level has fallen behind developed countries such as germany and america . and there are still no development and application for the orthosis cad / cam system , therefore , a set of foot orthosis cad / cam system is needed 由于国内cad cam技术起步较晚，技术水平已经远远落后于德国、美国等发达国家，对矫形器cad cam系统目前还没有进行开发、应用，因此需要一套自己的足底矫形器cad can系统。
But in this field , technology of developed countries , such as u . s . a and germany , has already far been higher than us . it is very expensive for us to import their devices . therefore , it is necessary to develop the foot orthosis cad / cam system by ourselves . by doing so , the cost of the equipment and production was reduced greatly 由于目前国内足底矫形器的生产是以手工为主，无论是从产品的数量还是质量来讲，都还远远不能满足市场的需要，而发达国家如德国、美国在此领域的技术己远远高于我们，进口他们的设备是非常昂贵的，所以研制一套自己的足底矫形器计算机辅助设计与制造系统( cad / cam )是必要的，因为这样可以大大降低设备的成本以及矫形器的制作成本，符合我国的国情。
In the first place the paper makes a summary of foot orthosis . then it introduces the concept of numerical control , the development and trend of machining technics and equipments , high speed milling technology . and it gives a presentation of the design and component of foot orthosis , sets forth foot orthosis ' s cad , hadware component and cam , with the addition of computer aided assembly planning 本文首先对足底矫形器做了概述，接着介绍了数控技术的概念、加工工艺及装备的发展趋势和高速铣削技术，并介绍了足底矫形器系统的设计和组成，对足底矫形器的cad设计、硬件组成和cam设计分别做了阐述，还包括计算机辅助工艺规程设计。
Foot orthosis cam system is a high - tech project that consists of computer technology , numerical control technology , high speed milling technology , modem machining technology . the paper has researched and designed on foot orthosis cam for the sake of improving its performance and facture efficiency 足底矫形器计算机辅助制造系统是集计算机技术、数控技术、高速铣削技术、现代加工技术为一体的高科技项目。为了提高足底矫形器的性能和制作成功率，本文在矫形器的计算机辅助制造方面进行了研究和设计。
