Computer-Aided Engineering. April 1992, Vol. 11 Issue 4, p66, 5 p. photograph
Computer-Aided Design, Rapid Prototyping, New Technique, Models, Prototypes, Engineering -- Design and construction, and Computer industry -- Product information
Companies can produce a prototype from a computer-aided design (CAD) file within one or two days by using the services of one of the approximately 40 rapid prototyping (RP) service bureaus. The CAD system must interface with the RP equipment, the file format being particularly important. An STL file interfaces with most RP systems and can be created with a good CAD system. Alternatively, many software developers now offer STL translators. STL translators can be created only for solid-model CAD systems only, rather than for models that do not close. Surface models work only if they are designed to be watertight. Additionally, supports must be created for any cantilevers or other unsupported structures to develop a CAD model and it is often appropriate to allow the RP service bureau to create the supports themselves. Future alternatives to the STL format will allow users to create smooth, precise surfaces.
Rapid Prototyping, Service Bureaus, CAD/CAM, Tutorial, and CAD-CAM systems -- Usage
A business can use a rapid prototyping (RP) service bureau instead of buying a RP system, which can cost anywhere from $50,000 to $550,000. The service bureau can not only act as a supplier but can also serve as an active consultant to the design process. A business needs to receive a job cost estimate first from the RP service bureau, providing all necessary design specifications such as tolerances and product use. The best way to transfer computer-aided files to the service bureau is to use the STL file protocol because it is recognized as the standard for hooking RP machines to computer-aided design systems. The cost of using a service bureau depends on the time it takes to convert data, the time to actually build the part on the RP system and the amount of time it takes to detail the finished product. One disadvantage of the system is a lack of security surrounding the product design even when nondisclosure agreements have been signed. The best use of a rapid prototyping system is when it builds complex parts. A directory of RP service bureaus is included.
Computer-Aided Engineering. Oct 1992, Vol. 11 Issue 10, p84, 4 p. table
Rapid Prototyping, Comparison, Manufacturing, Automobile industry, Automobiles, Chrysler Corp. -- Production management, Repetitive manufacturing systems -- Testing, Automobile industry -- Production management, and Automobiles -- Equipment and supplies
When evaluating rapid prototyping systems it is important to measure the accuracy of the process, as well as the safety and durability of materials. Additionally, it is important to consider the cost of installation, training and maintenance. Chrysler's Jeep and Truck Engineering unit decided to produce a single automobile part on five rapid prototyping systems in order to compare them. Chrysler sent an STL of the speedometer adaptor to five companies: DTM, Cubital, Stratasys, Helisys and 3D Systems. Detailed is an overview of the comparisons between the five systems. Areas discussed include quality quantifications, price parameters, and the benchmark bottom line. Skill and experience of the operator can have a significant effect on the accuracy of the part produced.
Directories, Stereolithography, Prototype, Three-Dimensional Graphics, Computer-Aided Design, Computer-Aided Manufacturing, Light Sculpting Inc. -- Product information, Helisys Inc. -- Product information, Light Sculpting LSI-1115MA (CAD/CAM system) -- Design and construction, Helisys LOM-2030 (CAD/CAM system) -- Design and construction, Quadrax Laser Technologies Mark 1000 Laser Modeling System (CAD/CAM system) -- Design and construction, Computer-aided manufacturing, Stereolithography -- Usage, and CAD-CAM systems industry -- Product information
There are several technologies for rapid prototyping, a manufacturing technique in which the prototype of a part is created in hours rather than weeks. Rapid prototyping systems use three dimensional computer-aided design (CAD) files, slicing the image into cross sections and constructing layers of solid material, bonding each to the one before it. 3D Systems Inc $385,000 SLA 190 uses stereolithography and focuses an ultraviolet light onto a liquid polymer. It can produce a 20X20X20 inch part in 3 hours. Stratasys Inc's $178,000 3D Modeler uses fused deposition modeling to produce a 12X12X12 inch part in under five hours. Helisys' $110,000 LOM-2030 uses laminated object modeling to create a 20X30X20 inch part in 15 to 30 hours. Light Sculpting Inc offers the $129,700 LSI-1115MA which produces an 11X11X15 inch part at 40 seconds per layer. Quadrax Laser Technologies Makes the $195,000 Mark 1000 Laser Modeling System which uses laser modeling to produce a 12X12X12 inch part in six to twenty-four hours.
Computer-Aided Engineering. April 2000, Vol. 19 Issue 4, 18
Rapid application development and Management issue
Dropping prices and technological refinements will bring rapid prototyping into the manufacture of production parts. Countless companies around the world have discovered methods of rapid prototyping (RP) and are using [...]
Computer-Aided Engineering. May 2001, Vol. 20 Issue 5, 6
Company acquisition/merger, 3D Systems Corp. -- Mergers, acquisitions and divestments, DTM Corp. -- Mergers, acquisitions and divestments, Computer software industry -- Mergers, acquisitions and divestments, Image processing equipment industry -- Mergers, acquisitions and divestments, and Laser industry -- Mergers, acquisitions and divestments
The merger between 3D Systems and DTM Corp. has the potential to ramp up the fledgling rapid manufacturing segment of the RP industry. The Rapid Prototyping (RP) industry is small [...]
Computer-Aided Engineering. Jan 2001, Vol. 20 Issue 1, 36
Hardware product introduction, Large format printer, CAD/CAM/CIM system, Stratasys Ltd. -- Product introduction, Stratasys Maxum (Large format printer) -- Product introduction, CAD-CAM systems -- Product introduction, Printers (Computers) -- Product introduction, Computer peripherals industry -- Product introduction, and Computer industry -- Product introduction
The Maxum is a rapid prototyping system from Stratasys that is said to be 50% faster than its previous offerings. Features: Maxum's soluble-support feature is said to eliminate postprocessing time [...]
Computer-Aided Engineering. June 2000, Vol. 19 Issue 6, 18
Shopping for rapid prototyping (RP) services expands on the Internet with two new Web sites that facilitate service information, price quoting, and transactions between manufacturers and RP bureaus. Bits2Parts.com, which [...]
Computer-Aided Engineering. Dec 2000, Vol. 19 Issue 12, 38
Product application, CAD/CAM software, CAE software, PlanetCAD Inc. -- Product information, General Pattern Company Inc. -- Planning, PTC -- Product information, Structural Dynamics Research Corp. -- Product information, Pro/ENGINEER (CAD/CAM software) -- Usage, I-DEAS (CAE software) -- Usage, CAD-CAM systems industry, Computer software industry -- Product information, and Computer-aided engineering
PlanetCAD provides technologies that enable manufacturers to achieve real-time exchange of engineering data. To learn more about PlanetCAD, visit its www.CIMshowplace.com booth. When General Pattern Company, an industry leader in [...]
Discusses the events from the Rapid Prototyping & Manufacturing (RP&M) Conference and Exposition. Information on a report by Terry Wohlers of Wohlers Associates on the rapid prototyping (RP) market; Top three unit sales performers; Other news at the conference.
Describes the report `Rapid Prototyping & Tooling State of the Industry: 1998 Worldwide Progress Report' published by Wohlers Associates Inc. which reveals the continuous increase in the sales of rapid prototyping (RP) systems in the United States. Decline in the amount of money spent on RP products and services; Top three unit sales manufacturers in 1997.
EXPERIMENTAL automobiles, AUTOMOTIVE engineering, and COMPUTER simulation
Takes a look at the Romulus Predator, a supercar debuted by M&L Auto Specialists Inc. at the Autofact in November 1997 which symbolizes the potential of virtual prototyping in automotive design. Use of virtual prototyping software and hardware in the car's design and construction; Automobile design; Companies involved in the car's production; Features.
The use of computer-aided manufacturing (CAM) tools such as numerical control (NC) software packages continues to grow as vendors seek to improve their product offerings. Currently, NC programming packages permit designers to generate toolpaths, simulate tool motions or create a solids model of a machine component and exchange such information with other plant machines. While some programs are integrated into a CAM system, others are compatible with other computer-aided design modules provided utility programs like IGES and DXF are used. Rapid prototyping is fast gaining popularity because it minimizes product development time. Such software, which some refer to as free-form manufacturing programs, creates a three-dimensional model which is downloaded to a machine that makes a physical prototype. A directory of available software packages is provided.
A buyer's guide of computer-aided manufacturing hardware and software products is presented. Information includes product name, a brief description, price, platform and vendor phone and fax numbers. A list of 36 products consists of numerical control software packages ranging in price from $495 to $100,000. A list of rapid prototyping equipment consists of 10 machines for creating physical prototypes from three-dimensional software models, ranging in price from $7,900 to $490,000. Also included is a list of 18 miscellaneous manufacturing software packages that did not clearly fit into one category.
Computer-Aided Engineering. June 1992, Vol. 11 Issue 6, p56, 1 p. photograph
CAD/CAM, Automation, Rapid Prototyping, Case Study, General Motors Corp. Allison Gas Turbine Div. -- Product development, DTM Corp. -- Product information, DTM Selective Laser Sintering (CAD/CAM system) -- Usage, CAD-CAM systems industry -- Product information, CAD-CAM systems -- Usage, and Prototypes, Engineering -- Technology application
General Motors Corp Allison Gas Turbine Div uses the Selective Laser Sintering (SLS) computer-aided design and manufacturing (CAD/CAM) system from DTM Corp for rapid prototyping of components. Previously designers waited up to nine months for a design's first prototypes to be produced usually by an outside foundry. With the help of SLS, engineers are producing prototypes in-house in as little as two weeks. SLS' rapid prototyping capability also means design flaws can be worked out before mass part production begins. The time SLS saves means engineers have extra time to perfect their designs so that the finished component will more closely match the designs as they appeared on the drafting board.
Discusses the trends in automotive prototyping in 1998. Cost of hardware testing; Information on virtual prototyping; Trend in using 3-dimensional (3D) solids; Employment of virtual reality softwares such as Oxygen SketchMap. INSETS: The cat is back;Cloning a classic.
COMPUTER software, OCCUPATIONAL disease diagnostic equipment industry, and MEDICAL equipment
Looks at how computer-aided design, computer-aided machining and rapid prototyping are used to develop medical devices. Details on the creation of a cardiac pump; Description of an equipment for carpal tunnel syndrome diagnosis; Information on a composite ambulance cot.
COMPUTER-aided design and COMPUTER-aided engineering
Deals with the impact of computer-aided design/computer-aided manufacture/computer aided-engineering (CAD/CAM/CAE) technology on reducing time to market. Details on the benefit of Lucas Diesel System for using SolidWorks software from SolidWorks Corp.; Approach of Detroit Diesel Corp. in using the CAD/CAM/CAE technology; Contract won by Oshkosh Truck Corp. in using CAD and prototyping method for designing.
Computer-Aided Engineering. Jun99, Vol. 18 Issue 6, p26. 4p. 1 Color Photograph, 3 Black and White Photographs.
COMPUTER-aided engineering, COMPUTER software, and MEDICAL equipment
Discusses the benefit of computer-aided engineering (CAE) in the field of medical device development. Computerized axial tomography (CAT) and magnetic resonance imaging (MRI); Use of Mimics software from Materialise Software; Application of rapid prototyping.
Focuses on the factors that have contributed to the increase in the popularity of the three dimensional printers in the United States. Includes low cost to purchase; Better operation than traditional rapid prototyping equipment; Offering of design engineers with the ability to quickly visualize their product ideas.
PROTOTYPES, PRODUCTION engineering, CONFERENCES & conventions, and SOCIETIES
Focuses on the Rapid Prototyping and Manufacturing 1998 exhibition sponsored by the Society of Manufacturing Engineers. Attendees for the event; Drop in the revenue growth from rapid prototyping (RP) products; Growth of primary RP products worldwide; Advancements in the materials front of RP products.
Features Matra Datavision Inc.'s task specific reverse engineering and rapid prototyping software called STRIM for Prototyping Version 6.2. Creation of high quality surfaces directly from a set of points in a matter of minutes; Inclusion of curvature analyzer in the software.
Focuses on the role of the collaboration between the Internet and rapid prototyping in improving the engineering design of products. Role of Internet technology in the decentralization of product design; Improvement of communication between people working together; Web sites that act as intermediaries between designers and service bureaus.
COMPUTER-aided engineering, MANUFACTURING processes, and VIRTUAL reality
Focuses on the distinction between two approaches in computer-aided engineering, called virtual prototyping and super engineer. How a virtual prototyping system works; Views on the functions of a super engineer; Significance of design alternatives to engineering projects.
STRATEGIC alliances (Business) and ENGINEERING design
Provides information on the expansion of the alliance between ANSYS Inc. and Mechanical Dynamics Inc. to provide advanced virtual prototyping capability. Benefits of the expansion to design engineers; Advantages of the advanced virtual prototyping capability.
Deals with the report `Rapid Prototyping & Tooling State of the Industry: 1999 Worldwide Progress Report,' that studied the use of rapid prototyping in design engineering. Implication of the decline in sales of rapid prototyping (RP) equipment; Benefit of design engineers in combining RP and solid modeling; Major difference of RP and computer-aided design (CAD).
COMPUTER software, COMPUTER simulation, and AIRPLANE maintenance & repair
Discusses the Lockheed Martin company's drive to decrease the cost of aircraft development processes through its Virtual Product Development. Employment of Engineering Animation Incorporated's VisFly product visualization software and VisMockUp digital prototyping software; Details on the initial implementation of VisProducts; Comments from Woody Sconyers, director of the Lockheed Martin Aeronautics Sector's Virtual Product Development Initiative.
Describes how Deere & Co. has used virtual prototyping in the product development process. Deere's experiments on virtual prototypes; Use of the Transom Jack human modeling computer software; Application of the software in complex design; Features of the software.
Introduces Z Corp.'s Z402, a rapid prototyping office modeler designed for use in early concept design and investment casting applications. Overall dimensions; Retail price; Design specification; Ordering information.
Focuses on Stokes Quality Industrial Designs use of mechanical computer-aided design software for conceptual design, prototyping and presentation of complex mechanical assemblies. Background information on the company; Integration of three-dimensional mechanical model into animation and rendering process; conversion of preliminary design work into persuasive sales tool.
Mills, Robert, Beckert, Beverly, and Kempfer, Lisa
Computer-Aided Engineering. Dec 1993, Vol. 12 Issue 12, p26, 3 p. photograph
CAD/CAM, Software Packages, Applications, Trends, Market Analysis, Review of Past Year, and CAD-CAM systems -- Usage
The year 1993 was a year of technological transitions and new and improved products in the computer-aided design/computer-aided manufacturing (CAD/CAM) industry. Solid modeling software packages became the leading seller in the mechanical CAD arena, and mechanical analysis software packages became more popular as supplements to hard prototyping. Products that gained attention in the CAM arena include numerical control software packages, which allow users to program machine tools, and rapid prototyping (RP) systems, which allow users to build physical parts by combining RP with CAD solid models. The architecture, engineering and construction industry increased its use of three-dimensional modeling and visualization. Product data management software, which allows users to monitor and control all elements of the product development process, also increased in popularity. Computer manufacturers responded to engineers' needs by developing faster, feature-packed platforms.
Computer-Aided Engineering. August 2001, Vol. 20 Issue 8, 19
CAD software, Software product introduction, LMS International -- Product information, Virtual.Lab (CAD software) -- Product introduction, Computer-aided design, and Computer software industry -- Product introduction
To some, the worlds of test-based engineering and virtual prototyping are miles apart. While test-based engineering is rooted in a lab--where physical components are analyzed virtual prototyping takes place on-screen--where [...]
Computer-Aided Engineering. Nov 1998, Vol. 17 Issue 11, 66
BIBA Rapid Prototyping Page www.biba.uni-bremen, de/groups/rp/rppage.html This rapid prototyping (RP) information source is provided by the Bremen Institute of Industrial Technology and Applied Work Science (BIBA) at the University of [...]
Reports on rapid prototyping (RP) system sales growth in 2001, according to Wohlers Report 2001. Number of RP system models and prototypes produced in 2001, according to the report; Region that dominates the use of RP worldwide.
Presents news on the online engineering design community as of September 2000. Plan of Autodesk Inc. to add Spatial Incorporated's 3Dshare.com model healing and translation service to its Point A design engineering portal site; Another version of CIMSW-Cat; Public launch of Protomarket.com's online marketplace for rapid prototyping and tooling services.
WEBSITES, COMPUTER industry, and COMPUTER network resources
Provides information on several Web site services for the computer industry. Rapid Prototyping Page from the Bremen Institute of Industrial Technology and Applied Work Science; Web site resources of ELSA Inc.; On-line services of Information Assets Inc.
Introduces DTM Corp.'s DuraForm Polyamide, a plastic material designed for rapid prototyping applications that require high resolution, fine feature definition and surface finish characteristics. Primary applications for the product; Feature definition characteristics.
Reports on developments concerning computer-aided engineering in the United States, as of September 1997. Bentley Systems' purchase of IdeaGraphix; Stratasys Inc.'s installation of its 500th rapid prototyping system at Xerox Corp.
Reports on developments concerning computer-aided engineering as of July 1997. Bentley Systems' addition of ModelServer Continuum to its Engineering Back Office; 3D Systems' retrofitting of its high-end SLA-500 rapid prototyping system to run Windows NT applications.