doi: 10.17586/2226-1494-2018-18-6-946-953


SELECTION OF OPTICAL SYSTEM PARAMETERS AND METHODS FOR SOFTWARE DEVELOPMENT OF TECHNICAL VISION COMPLEX FOR THREE-DIMENSIONAL PRINTING

D. V. Izmaylov, K. Y. Bodrov, N. D. Tolstoba


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Izmaylov D. V., Bodrov K. Yu., Tolstoba N. D. Selection of optical system parameters and methods for software development of technical vision complex for three-dimensional printing. Scientific and Technical Journal of Information Technologies, Mechanics and Optics , 2018, vol. 18, no. 6, pp. 946–953 (in Russian). doi: 10.17586/2226-1494-2018-18-6-946-953


Abstract
Subject of Research.The paper presents the study of methods for control of rapid prototyping processes with the use of technical vision hardware and software system. Product monitoring is a crucial function of any manufacturing process. It becomes more important when the monitoring is performed during the the product manufacturing. Three-dimensional printing technology requires this kind of monitoring system in order to improve the visual and durable qualities of the product, optimize the material costs and the speed of manufacturing. Method. The parameters of the optical system for capturing images in the printing process are defined in theory. Optical systems are selected providing the necessary image quality. The analysis of the camera placement configuration has been carried out to match optimally the task. The analysis was based on overall dimensions of the 3D printer, its working area and free space in the printer case. The ways for solution of software part problems were analyzed. Main Results. A mathematical apparatus was developed for calculation of the optical system parameters of a technical vision complex. Different variants of optical systems were selected for efficiency verification of the hardware and software system. Different methods for development of programs and algorithms for data processing from video cameras were considered. Practical Relevance. The development of the hardware and software system that controls the rapid prototyping process has a significant benefit in expanding the possibilities of automating rapid prototyping processes. The results of the work can be useful in quality control of the product during its manufacturing, in disclosure of deviations from the virtual three-dimensional model, in development of recommendations for control commands update in order to improve the quality and increase the speed of product manufacturing.

Keywords: 3D-printing, optical system, technical vision, software, recommendation systems, defect detecting, quality control, camera, prototyping

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