Kongsberg's low cost CAD/CAM

Abstract Internet technology in particular opens up another domain for building future CAD/CAM environment. This environment will be a global, network-centric environment with various members providing different software tools, manufacturing facilities, and analysis services for distributed design and fabrication. Web-based CAD tools play a prominent role in the environment. Two kinds of clients can be used to develop a web-based CAD tool now, one is “thin” client, and another is “fat” client. This paper compares the advantage of “thin” and “fat” client, and explains the advantage of using low-cost, configurable, CAD components.

Download Full-text

Development of Tactile Globe for the Visually Impaired (Automation of Marking Using an Industrial Robot)

International Journal of Automation Technology ◽

10.20965/ijat.2017.p0270 ◽

2017 ◽

Vol 11 (2) ◽

pp. 270-277

Author(s):

Naoki Asakawa ◽

◽

Ryota Kito ◽

Keigo Takasugi ◽

Keyword(s):

Machine Tools ◽

Lead Time ◽

Visually Impaired ◽

Industrial Robot ◽

Spherical Surface ◽

Low Cost ◽

Limited Range ◽

3D Cad ◽

Cad Cam ◽

Short Lead Time

In spite of the importance of the globe as an educational and cultural tool, for visually impaired users, common globes are just spherical objects. Although there are commercially available globes for visually impaired users, globes that have convex and concave features on the surface denoting coastlines and country borders, most of them are expensive because they are made by hand. Consequently, visually impaired users wishing to purchase globes have a very limited range of choices. In terms of industrial production, producing globes with convex and concave surfaces essentially involves machining a spherical surface. For instance, with common machine tools, even positioning or marking a spherical surface of a certain size is very difficult operation since the posture of the tool must change dramatically. The purpose of the study is to develop a CAM system to design the surface of tactile globes suitable for individual needs and to manufacture them for the visually impaired at low cost and with a short lead time. In the report, as the first step, a method of holding the sphere and marking it via 3D-CAD/CAM technology and the control technology of an industrial robot is proposed. As a result, the system enables the marking of the coastlines and country borders on spheres automatically using our own CAM system and an industrial robot.

Download Full-text

Key Technology of the Denture CAD/CAM System

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.494-495.637 ◽

2014 ◽

Vol 494-495 ◽

pp. 637-640

Author(s):

Xiu Guang Ge ◽

Xue Ling Jiang ◽

Li Hui Chen ◽

Jian Hong Liao

Keyword(s):

Data Processing ◽

Surface Reconstruction ◽

Low Cost ◽

Cnc Machining ◽

Key Technology ◽

Model Acquisition ◽

Key Technologies ◽

Cad Cam ◽

Cad Models ◽

Solid Foundation

The key technologies of denture CAD/CAM system were studied in this study. Key technologies include: model acquisition, data processing, surface reconstruction, creating CAD models, establish standards tooth databases, rapid prototyping and CNC machining. The results show that the actual dentures feasibility of CNC processing systems and the denture model is validated. This study lays solid foundation for the development of the low-cost, lightweight and fast denture CAD/CAM system.

Download Full-text

Research on Web-Based Virtual Grinding Machine Tool

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.118-120.825 ◽

2010 ◽

Vol 118-120 ◽

pp. 825-829

Author(s):

Peng Guan ◽

Heng Xian Zhang ◽

Tian Biao Yu ◽

Wan Shan Wang

Keyword(s):

Machine Tool ◽

Low Cost ◽

Virtual Manufacturing ◽

Machining Process ◽

The Internet ◽

Design Quality ◽

Web Based ◽

Graphic Modeling ◽

Cad Cam ◽

Grinding Machine

With the development of Virtual Manufacturing (VM), Virtual Machine Tool (VMT) is presented as a new field of study, which can partially or completely achieve the main functions of the machine tool. As a result, it can improve the product design quality, short the product development cycles, and reduce the development costs. This paper presents a web-based virtual grinding machine tool system. Using the Internet 3D modeling language VRML 2.0, 3D graphic modeling of the machine tool is modeled. Combined with JavaScript language, the motion simulation, virtual assembly and machining process simulation are carried out. The system is based on VRML and B/S structure. Users only need to install a free plug-in, and operate the system with IE browser. Compared with the expensive CAD/CAM software, the system can be transferred on the Internet conveniently, and has free installation, low cost, portability and low requirements for the users.

Download Full-text

Block Construction of Small Ships and Boats Through Use of Developable Panels*

Journal of Ship Production ◽

10.5957/jsp.2002.18.2.65 ◽

2002 ◽

Vol 18 (02) ◽

pp. 65-72

Author(s):

Rolf Oetter ◽

Christopher D. Barry ◽

Bryan Duffty ◽

Joel Welter

Keyword(s):

Low Cost ◽

Surface Preparation ◽

Easy Access ◽

Product Model ◽

Simple Method ◽

Specialized Software ◽

Cost Surface ◽

Cad Cam ◽

Block Construction ◽

Definition Of

The authors propose a simple method to improve productivity for construction and subsequent outfitting of typical hard-chine boats. This method uses CAD/CAM definition of the structure to manufacture the bottom and sides, decks and bulkheads of the boat as independent panels. The system divides such craft into construction modules by surfaces instead of by blocks as in standard shipbuilding practice. Since all of these panels are developable, an adjustable jigging system supports them essentially horizontally on their rulings. Transverse stiffeners are then welded to the panels. The system and details are optimized for maximum use of downhand welding and weld pacers. This system, however, requires specialized software to develop piece parts and to efficiently derive these modules from the product model. The developable panels can be outfitted with machinery, foundations, piping, wiring and insulation. Bottom and side panels can be tipped up, joined and more outfit installed in stages optimized for lifting and ready access. The deck is built and outfitted inverted, and then joined to the open hull. The bulkhead details and deck framing are also optimized to allow ready outfitting and subsequent joining of the deck as a unit. The easy access to the panels also allows effective, low-cost surface preparation and painting, so this system has benefits for both steel and aluminum construction.

Download Full-text

Low Cost CAD/CAM System for Machine Parts

Computer-Based Automation ◽

10.1007/978-1-4684-7559-3_8 ◽

1985 ◽

pp. 153-168

Author(s):

W. B. Ngai ◽

Y. K. Chan

Keyword(s):

Low Cost ◽

Cad Cam ◽

Machine Parts

Download Full-text

A smartphone photogrammetry method for digitizing prosthetic socket interiors

Prosthetics and Orthotics International ◽

10.1177/0309364616664150 ◽

2016 ◽

Vol 41 (2) ◽

pp. 210-214 ◽

Cited By ~ 11

Author(s):

Amaia Hernandez ◽

Edward Lemaire

Keyword(s):

3D Model ◽

Low Cost ◽

3D Models ◽

Reconstruction Accuracy ◽

Linear Measurements ◽

Prosthetic Socket ◽

Cad Cam ◽

3D Scanners ◽

The Cost ◽

Cam Systems

Background and Aim: Prosthetic CAD/CAM systems require accurate 3D limb models; however, difficulties arise when working from the person’s socket since current 3D scanners have difficulties scanning socket interiors. While dedicated scanners exist, they are expensive and the cost may be prohibitive for a limited number of scans per year. A low-cost and accessible photogrammetry method for socket interior digitization is proposed, using a smartphone camera and cloud-based photogrammetry services. Technique: 15 two-dimensional images of the socket’s interior are captured using a smartphone camera. A 3D model is generated using cloud-based software. Linear measurements were comparing between sockets and the related 3D models. Discussion: 3D reconstruction accuracy averaged 2.6 ± 2.0 mm and 0.086 ± 0.078 L, which was less accurate than models obtained by high quality 3D scanners. However, this method would provide a viable 3D digital socket reproduction that is accessible and low-cost, after processing in prosthetic CAD software. Clinical relevance The described method provides a low-cost and accessible means to digitize a socket interior for use in prosthetic CAD/CAM systems, employing a smartphone camera and cloud-based photogrammetry software.

Download Full-text

A Study on CAD/CAM Application in CNC Milling Using Industrial Clay

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.761.32 ◽

2015 ◽

Vol 761 ◽

pp. 32-36

Author(s):

Nurul Wahieda Muhamad Bustaman ◽

Mohd Salman Abu Mansor

Keyword(s):

Low Cost ◽

Machining Parameters ◽

Milling Machine ◽

Design Phase ◽

Cnc Milling ◽

Clay Sample ◽

Machining Time ◽

Cnc Milling Machine ◽

Cad Cam ◽

The Difference

Throughout the production process, improper planning and exploitation of the CAD/CAM system leads to the low level utilization of the CNC milling machine. In product design, tangible prototype is fabricated using CAD/CAM techniques in the design phase to analyse and modify the product before actual production. In this research, industrial clay is used as the prototype material. The objectives of the study are to investigate the machining parameters of industrial clay using the CNC milling machine and to apply the CAD/CAM system in producing a clay sample part via the CNC milling machine. Using uncomplicated and low cost setup for the fabrication method, an industrial clay sample part is prepared in the CAD/CAM system and shaped using the CNC milling machine. The difference between the simulated and the actual machining time of the machined part is analysed.

Download Full-text