Construction of Virtual CNC Machining System Based on 3DS and Open GL

2012 ◽  
Vol 220-223 ◽  
pp. 414-417
Author(s):  
Jun Fang Ni ◽  
Wei Fan ◽  
Ye Kuan Duan
Keyword(s):  
Virtual Reality ◽  
Process Optimization ◽  
Cnc Machining ◽  
Control Panel ◽  
Modeling Simulation ◽  
Machine Modeling ◽  
Key Technologies ◽  
Machining System ◽  
Simulation Control ◽  
Open Gl

Virtual CNC machining is test cutting and process optimization of virtual reality before production, which overcomes defects of interferences and collisions while the real workpiece is fabricated. The 3D scenario of Virtual CNC machining system is constructed by 3DS and Open GL on VC++6.0 platform. This system mainly encompasses modules of machine modeling, simulation of virtual cutting and its control panel. Key technologies solve 3DS file reading, simulation control by Open GL back buffer and implementation of control items on control panels respectively, so practicability of CNC system is improved greatly.

scholarly journals Virtual Reality Technology and Remote Digital Application for Tele-Simulation and Global Medical Education: An Innovative Hybrid System for Clinical Training

2021 ◽  
pp. 104687812110082
Author(s):  
Omamah Almousa ◽  
Ruby Zhang ◽  
Meghan Dimma ◽  
Jieming Yao ◽  
Arden Allen ◽  
...  
Keyword(s):  
Medical Education ◽  
Virtual Reality ◽  
Real Time ◽  
Global Education ◽  
Clinical Training ◽  
Simulation Training ◽  
Virtual Space ◽  
Control Panel ◽  
Clinical Simulation ◽  
Clinical Scenarios

Objective. Although simulation-based medical education is fundamental for acquisition and maintenance of knowledge and skills; simulators are often located in urban centers and they are not easily accessible due to cost, time, and geographic constraints. Our objective is to develop a proof-of-concept innovative prototype using virtual reality (VR) technology for clinical tele simulation training to facilitate access and global academic collaborations. Methodology. Our project is a VR-based system using Oculus Quest as a standalone, portable, and wireless head-mounted device, along with a digital platform to deliver immersive clinical simulation sessions. Instructor’s control panel (ICP) application is designed to create VR-clinical scenarios remotely, live-stream sessions, communicate with learners and control VR-clinical training in real-time. Results. The Virtual Clinical Simulation (VCS) system offers realistic clinical training in virtual space that mimics hospital environments. Those VR clinical scenarios are customizable to suit the need, with high-fidelity lifelike characters designed to deliver interactive and immersive learning experience. The real-time connection and live-stream between ICP and VR-training system enables interactive academic learning and facilitates access to tele simulation training. Conclusions. VCS system provides innovative solutions to major challenges associated with conventional simulation training such as access, cost, personnel, and curriculum. VCS facilitates the delivery of academic and interactive clinical training that is similar to real-life settings. Tele-clinical simulation systems like VCS facilitate necessary academic-community partnerships, as well as global education network between resource-rich and low-income countries.

Integration of Virtual Reality with Computational Fluid Dynamics for Process Optimization

2010 ◽  
Author(s):  
B. Wu ◽  
G. H. Chen ◽  
D. Fu ◽  
John Moreland ◽  
Chenn Q. Zhou ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Virtual Reality ◽  
Process Optimization

scholarly journals A Comparative Analysis of the Impact of CNC Miller Programming on Machining Effects

2018 ◽  
Vol 1 (1) ◽  
pp. 161-167 ◽  
Author(s):  
Józef Kuczmaszewski ◽  
Paweł Pieśko ◽  
Magdalena Zawada-Michałowska
Keyword(s):  
Comparative Analysis ◽  
Cnc Machining ◽  
Control Panel ◽  
Software Environment ◽  
Machining Time ◽  
Dimensional Deviation ◽  
Geometrical Features ◽  
Cnc Programming ◽  
The Impact ◽  
Cam Software

Abstract This paper presents a comparison of the impact of the programming methods of a CNC miller on the machining effects. As a part of the study, the test samples were made of the EN AW-2024 aluminium alloy. The CNC machining programs compared were developed with two programming methods: by inputting the CNC machining program directly from the CNC miller's control panel (machine level programming) and in a CAM software environment (CAM programming). The machining effect indicators adopted included: machining time, surface quality, and dimensional deviation of specific geometrical features. A measurement of the machining times revealed than the CAM programming reduced the machining time up to 20% from the machining time of the machine level programming. A conclusion stands valid that CNC machining programs developed in the CAM software environment are more efficient than CNC programming directly with the CNC miller control panel, most likely due to the machining path optimisation in CAM. In addition, given the experimental test results, it was found that smaller machined errors were also obtained for CAM programming. To conclude, the comparative analysis revealed that CAM programming provided better machining results than the machine level programming.

Smart Destination as Key Element

2015 ◽  
pp. 231-254
Author(s):  
Elisa Alén González ◽  
Trinidad Domínguez Vila ◽  
Pablo de Carlos Villamarín
Keyword(s):  
Virtual Reality ◽  
National Level ◽  
Tourist Attraction ◽  
Basic Information ◽  
International Level ◽  
Use Of Technology ◽  
Tourism Sector ◽  
Key Technologies ◽  
Business Opportunities ◽  
Intuitive Interfaces

The study intends to show the business opportunities generated through the use of technology in the tourism sector by identifying its key elements, with the aim of improving the user's experience. In order to achieve this, the Way of St James has been taken as the object of analysis, given its relevance at a national level as a tourist attraction, and its impact at international level. The methodology applied uses a content analysis of the key technologies that are being used in its promotion, dissemination, information and management. The main results obtained showed that companies are not taking sufficient advantage of social media, which are a key element in user communication and feedback. It was also noted that their webpages had only basic information that was not dynamic enough, and showed an almost general lack of tools such as augmented or virtual reality, and more intuitive interfaces and applications.

Process Planning in Layer-Based Machining

2001 ◽  
Author(s):  
Z. Y. Yang ◽  
Y. H. Chen
Keyword(s):  
Process Planning ◽  
Critical Points ◽  
Cnc Machining ◽  
Flow Chart ◽  
Layer By Layer ◽  
Interference Avoidance ◽  
Planning Techniques ◽  
Freeform Surfaces ◽  
Machining System ◽  
Model Layer

Abstract Some freeform surfaces cannot be machined by traditional CNC machining because of the inaccessibility to some critical points. Layer-based machining system developed by the authors can enlarge the accessibility by building a model layer by layer. Each layer is shaped by 5-axis machining. In this paper, the overall process planning techniques are identified and analyzed. The data flow chart in layer-based machining is established. The concepts of “decomposition for accessibility” and “decomposition for manufacturability” are proposed to decompose the model into manufacturable parts, which is called slabs. Adaptive slicing and interference avoidance algorithms are developed to achieve the maximum accessibility. A method called stock layer combination is proposed to select available stock layers for the process.

Synchronous Adjustment of Milling Tool Path Based on the Relative Deviation

2011 ◽  
Vol 133 (5) ◽  
Author(s):  
Xiao-Jin Wan ◽  
Cai-Hua Xiong ◽  
Lin Hua
Keyword(s):  
Tool Path ◽  
Cutting Tool ◽  
Cnc Machining ◽  
Numerical Control ◽  
Machining Process ◽  
Machining Accuracy ◽  
Source File ◽  
Modern Computer ◽  
Adjustment Strategy ◽  
Machining System

In machining process, machining accuracy of part mainly depends on the position and orientation of the cutting tool with respect to the workpiece which is influenced by errors of machine tools and cutter-workpiece-fixture system. A systematic modeling method is presented to integrate the two types of error sources into the deviation of the cutting tool relative to the workpiece which determines the accuracy of the machining system. For the purpose of minimizing the machining error, an adjustment strategy of tool path is proposed on the basis of the generation principle of the cutter location source file (CLSF) in modern computer aided manufacturing (CAM) system by means of the prediction deviation, namely, the deviation of the cutting tool relative to the workpiece in computer numerical control (CNC) machining operation. The resulting errors are introduced as adjustment values to adjust the nominal tool path points from cutter location source file from commercial CAM system prior to machining. Finally, this paper demonstrates the effectiveness of the prediction model and the adjustment technique by two study cases.

Research on Optimization and Application of LOD Algorithm in Virtual Reality Visualization of Terrain

2014 ◽  
Vol 687-691 ◽  
pp. 1258-1261
Author(s):  
Jing Sun ◽  
Hong Tao Wang
Keyword(s):  
Virtual Reality ◽  
Real Time ◽  
Large Scale ◽  
Design Work ◽  
Terrain Rendering ◽  
Key Technology ◽  
Progressive Mesh ◽  
Key Technologies ◽  
Methods And Techniques ◽  
Visibility Culling

With the development of computer graphics, real-time rendering-based VF: technology has been applied in more and more fields. LOD is the key technology in large-scale terrain rendering. In this paper, the basic concept of LOD is introduced briefly and some algorithms of LOD in use are mentioned and analyzed; secondly as one of algorithms of LOD, View-Dependent Progressive Mesh algorithm is studied and improved, the result of implementing the large-scale terrain’s LOD by using VDPM is presented. There are key technologies in LOD Large-scale terrain real-time rendering are researched. Relative technologies are presented such as: LOD of the terrain, visibility culling, and cracks eliminate, view-dependent refine, LOD error, technologies of texture etc. Using LOD technology, VR system can greatly reduce the; number of polygons produced in real-time rendering procedure. Finally, we do experimental design work based on the methods and techniques presented by this paper.

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