Optimal Parameter Settings to Overcome Linear Shrinkage of Stereolithography Parts 11. Less effort is devoted to addressing integration of manufacturing operations with facility design, training, and startup. The resulting advanced applications will include remote tele-collaboration among factory designers, reviewers, and site master planners. Inc. A ccurate and real-time collision detection is an important problem in modeling various manufacturing operations and systems in virtual reality. So far the collision detection between multiple non-convex objects has posed a number of problems and this research aims at targeted heuristics for overcoming some of these limitations.
Actuation is based on piezo-electric stack actuators.
Capacitive gap sensors with less than 1.0 nano meter resolution are used for position feedback. A CMAC neural network control algorithm was applied in order to provide on-line learning and better tracking capability compared to standard PID control algorithm. The learning CMAC control provides significantly better tracking accuracy and robustness against hysteresis and drift effects. The motion of the nano positioner is coordinated with the machine tool using a master-slave relationship, where the nano positioner is commanded to correct whatever the tracking error the machine tool has, thus increasing the positioning accuracy and bandwidth of the machine tool. The CES can be used to quickly evaluate the design concepts and determine the top-level design specifications.