A study on the design of CNC lathe for education and application
Abstract As the factory automation progresses, the number of specialized products increases rapidly. Furthermore, there is an increased need for engineers trained in CAD/CAM for process design and operation. This development necessitates thorough and systematic education in CAD/CAM and educational numerical control machine tools. Inexpensive educational CNC machine tools will facilitate the required education in Korea. In this study we design and manufacture a prototype of an inexpensive CNC lathe. This will facilitate the CNC education in Korea as these activities become active. The designed CNC lathe has power rating of 0.5 kW and includes a CPU board, main motor board, step motor board, and power supply board. The specification for lathe meets the KS and DIN standards.
A Mini CIM System for Turning
Abstract Traditionally, the process from product design to manufacturing is elaborate and time-consuming. Therefore, many systems such as APT, COMPACT II, and CAD/CAM have been developed for reducing production cycles. However, the utilization of these systems requires the involvement of experienced manufacturing engineers for obtaining the optimal manufacturing data. Besides these systems cannot match one another very well, and costs are high. Therefore we introduce a Mini CIM system for turning, which not only handles turning operations, but is able to deal with non-rotational attributes for turning parts. This system is based on a 16-bit PC. Basically, it contains six parts: (1) Parts Drawing Data Input, (2) Fully Automatic Process Planning, (3) NC Parts Program Generation, (4) Adaptive Control, (5) Measuring System, (6) Loading & Unloading. Equipped with the above features, inexperienced workers can operate this system easily. It is also possible to integrate this system into a complete Large Scale CIM system.
Immersive haptic interaction with media
New 3D video representations enable new modalities of interaction, such as haptic interaction, with 2D and 3D video for truly immersive media applications. Haptic interaction with video includes haptic structure and haptic motion for new immersive experiences. It is possible to compute haptic structure signals from 3D scene geometry or depth information. This paper introduces the concept of haptic motion, as well as new methods to compute haptic structure and motion signals for 2D video-plus-depth representation. The resulting haptic signals can be rendered using a haptic cursor attached to a 2D or 3D video display.