SBIR Phase I: A Fully Automatic Rapid Prototyping System Using a Novel Rapid 3D Camera

这个小企业创新研究（Sbir）第一期项目将探索一种快速生成三维（3D）数据的新方法，用于待原型零件。虽然许多快速原型（RP）零件可以从CAD图纸中生产出来，但在某些RP应用中需要直接数字化3D物理对象的能力，其中零件必须制造以适应不规则形状的3D物体，例如人体或牙齿的某些部位。传统的测量复杂三维形状的方法通常耗时，复杂，高度交互，并且需要专业知识。因此，RP迭代周期的时间是由三维模型的数字化和生成适当的三维数据文件驱动的。第一阶段SBIR将研究高速3D相机（可以以每秒30帧的速度获取物体的全帧3D图像）和超精密RP机器。高速3D成像技术将与超精密的液滴沉积喷墨RP技术相结合，用于逼真的牙科办公室环境。将获得三维牙科图像，并实时生产具有亚毫米到微尺寸特征的牙科部件。这种集成RP概念的应用包括在数字牙科诊所的快速牙科治疗。通过这项技术，新一代的RP牙科器械有望在牙医办公室快速制造牙种植体、牙帽、牙冠和牙桥。＊＊＊

*** 9760459 Geng This Small Business Innovation Research (Sbir) Phase I project will explore a new means for rapid generation of three dimensional (3D) data for parts to be prototyped. Although many rapid prototyped (RP) parts can be produced from CAD drawings, the capability of directly digitizing 3D physical objects is needed in certain RP applications, in which parts must be fabricated to fit irregular shapes of 3D objects, e.g., certain parts of human body or teeth. Conventional methods of measuring complex 3D shapes are usually time-consuming, complicated, highly interactive, and require expert knowledge. Thus, the time of a RP iteration cycle is driven by the digitizing of a 3D model and generating an adequate 3D data file. Phase 1 SBIR will study a high speed 3D camera (that can acquire a full frame 3D image of an object at a rate of 30 frames per second) and an ultra-precision RP machine. The high-speed 3D imaging technique will be combined with an ultra-precision droplet deposition ink jet RP technique for realistic dental office environments. 3D dental images will be acquired, and dental parts will be produced in real-time with sub-millimeter to micro-sized features. Applications of this integrated RP concept include rapid dental treatment in the digital dental office. By this technology a new generation of RP dental instruments is expected that can rapidly fabricate dental implants, caps, crowns,and bridges in a dentist's office. ***