February 2005

By DE Editors

Editor’s Pick of the Week: February 23, 2005

Push-Button Collaboration

Bluebeam provides collaborative file conversions anddelivery options tailored for design engineers

Bluebeam Pushbutton Plus from Bluebeam Software(Pasadena, CA) takes the fussing out of collaboration and communication fordesign engineers. With a click of your mouse, Bluebeam automatically reads aMicrosoft Office or MCAD file and converts it to a high-quality, scalable PDFfilethat you can send to the honcho, your clients, or to anyone with whom youcollaborate. Click another button and Bluebeam batch converts files or bindsmultiple PDFs, MCAD drawings, or Windows files into a booklet. Easy to use,Bluebeam offers virtually no learning barriers between it and productivity,according to the company.

       

	Images courtesy Bluebeam Software

Bluebeam Pushbutton Plus is optimized for AutoCAD andSolidWorks. Bluebeam Lite works with most major MCAD solutions. All versionswork with Microsoft Office files. Bluebeam works as a toolbar button inAutoCAD, SolidWorks, and MS Office. It also integrates with document managementand workflow systems seamlessly.

Bluebeam Pushbutton Plus automatically reads an MCADfile’s orientation, scale, line weights, merged lines, plot style table, andpage size without requiring you to play around with any settings. You canthen convert the file into one of seven formats: PDF, TIF, JPG, BMP, PSD, PNG,and PXL. Further, you can automatically create bookmarks based on drawing orlayout names, or you can use custom bookmarks to link to specific pages, localfiles, web pages, and snapshot views of specific areas of your drawings.

Bluebeam Pushbutton Plus lets you create secure,password-protected PDF files. Its security options let you limit the ability ofPDF recipients to print, copy text or graphics, or annotate PDF files. Afteryou create the file, you can FTP, e-mail, or print it from Bluebeam. Or, youcan simultaneously convert and transmit a file to an FTP server or to e-mail.

The Bluebeam Lite version creates PDF files from mostMCAD applications, including Autodesk LT, Inventor, MicroStation, andUnigraphics, as well as Microsoft Office documents. It automatically detectsyour MCAD program and sets the orientation and resolution automatically.

Complete details, interactive tours, and free 30-daytrial versions of Bluebeam Pushbutton Plus and Bluebeam Lite are all availableat the Bluebeam Software website.

Bluebeam Software

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Editor’s Pick of the Week: February 16, 2005 Get Control of Design, Manufacture, and Assembly
New version of Boothroyd Dewhurst’s software expands ability to balance cost andinnovation

Without stifling innovation DFMA—Design for Manufacture and Assembly—software from Boothroyd Dewhurst, Inc. (Wakefield, RI) helpsengineers and engineering supply chains identify, analyze, and controlthe cost drivers associated with designing, manufacturing, andfinishing parts before any costs are locked in. The newest release,DFMA 2005, expands the software’s cost-management functionality andimproves its innovation support characteristics.

DFMA software comprises complementary Design for Assembly (DFA) andDesign for Manufacture (DFM) modules, both of which have been upgradedin the 2005 release. It uses a quantitative, multidisciplinary approachto cost assessment, and, with a few simple steps, generates initialcost estimates at any stage of design quickly. (For an in-depth look athow DFMA software works, see “Need to Cut Costs? Check Your DesignFirst,” DE, September 2004.)

According to Boothroyd Dewhurst, a pair of new manufacturing processesfor design cost estimating, deep drawing and assembly fabrication, areparticularly noteworthy.                

Image A shows a DFMA cost analysis for making a deep-drawn part. Withthe addition of deep drawing, DFMA software now includes the completerange of processes commonly used to estimate sheet metal part costs.Displayed at lower left of the analysis interface is the estimated costper part, broken down into material, setup, process, and tooling costs.As with all DFMA analyses, engineers can change analysis inputs andrecalculate estimated part costs as design proceeds.	ImageB shows a DFMA cost analysis for making a metal bracket. The questionat hand is whether to make the bracket as a single sand-cast part or asa welded assembly of 4 separate parts. The new Assembly Fabricationfeature in DFMA software allows cost comparisons between single-partand multi-part designs. One step in DFMA analysis, shown color-coded inthe window on top, is selecting compatible processes andmaterials.
ImageC shows a DFMA cost analysis for a machined part. DFMA softwareprovides manufacturing cost estimates at the earliest stages of productdevelopment so engineers can make informed decisions during productdesign. If a solid model for a part is not available, engineers canenter part dimensions using a built-in geometry calculator.	ImageD shows a DFMA cost analysis for an injection-molded part. DFMAsoftware provides manufacturing cost estimates at the earliest stagesof product development so engineers can make informed decisions duringproduct design. If a solid model for a part is not available, engineerscan enter part dimensions using a built-in geometry calculator.

Deep drawing, a new metalworking process, lets engineers cost outdesigns using all the common manufacturing processes for sheet-metalparts. It also estimates costs for subsequent press operations, such astrimming, ironing, restriking, punching, and bending. With deepdrawing, engineers can investigate costs for a range of alternativeshape-forming processes, including sheet metalworking, machining,plastic injection molding, metal injection molding, die casting, andpowder metals.

An entirely new capability, assembly fabrication helps engineers makedecisions about parts consolidation. It enables engineers to comparemanufacturing processes for designs with a different number of partsand select the most cost-effective design from among the alternatives.For example, engineers can use assembly fabrication to estimate thecost of a small welded subassembly then compare it to the cost of asingle part.

DFMA 2005 has improved libraries of machine costs for manufacturinghot-forged, powder-metal, and foam-molded parts. It also has newlibraries for the various types of furnaces used in powder metal andhot forging processes.

DFMA 2005 runs under Windows 98, Windows 2000, and Windows XP. For full details,go to the Boothroyd Dewhurst Web site. Click here to link to a WebEx broadcast on DFMA.

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Editor’s Pick of the Week: February 9, 2005Anytime Functional Prototypes

Roland’s new rapid prototyping system is compact, but handles complex parts

Roland Advanced Solutions Division (ASD; Lake Forest, CA) hasintroduced the low-cost MDX-40 desktop Subtractive Rapid Prototyping(SRP) system. With a list price of $10,995 and its ability to handle avariety of nonproprietary materials with precision and smooth surfacefinish, the MDX-40 brings mechanical designers a day closer to anytimefunctional testing.

Image courtesy of Roland ASD

The MDX-40 can mill a wide range of low-cost, nonproprietary materialsincluding ABS, delrin, nylon, and tooling board. With this materialflexibility, engineers can create functional prototypes, includingthose with complex snap-fits, that perform like the final manufacturedproduct. This, in turn, enables engineers to subject the prototypes tothermal, structural, and other physical testing to determine how wellproducts will actually perform. Additionally, these materials createdurable, smooth-surfaced prototypes suitable for handling by marketfocus groups.

Operational characteristics of the MDX-40 include a fourth rotary axisfor unattended two- and four-sided milling, a 12- x 12- x 4.12-inchwork volume, and a high-speed 15,000 rpm spindle for creating detailedfeatures with fine tools.

MODELA Player 4, the MDX-40’s bundled 4-axis CAM software, acceptsIGES, DXF, and STL files exported from most 3D CAD programs. Engineersuse this software to generate proportional 3D scaling, identify millingdirection, and automatically generate and display the toolpath. MODELAPlayer 4 supports tool changing when used with the Automatic ToolChanger (ATC) and automatic side cutting when used with the Rotary AxisUnit.

Virtual MODELA enables simulation of finished 3D models and accuratelyestimates machining production time. Lighting effects, material color,or bitmap overlays can be added for accurate finished productrepresentation. Access can be directly achieved from MODELA Player orby importing a PRN file.

The MDX-40 has a list price of $10,995. It is available immediately. Leasing optionsare available.Roland Advanced Solutions Division

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Editor’s Pick of the Week: February 2, 2005 Boost Calculations Inside of SolidWorks
MathInWorks integrates Mathcad

MathInWorks from SolidVision (Oxford, MA) is an add-in that integrates Mathsoft’s Mathcad 12 engineering calculation software with SolidWorks.MathInWorks provides an easy-to-use user interface that leverages theSolidWorks PropertyManager page or an Advanced window for projectediting.

Here’s how you use it: After you create a part or assembly file, youinvoke MathInWorks from within SolidWorks to import a Mathcad worksheetinto SolidWorks. You then add links between the Mathcad variables andSolidWorks dimensions, mass properties, or scalar values. Run yourcalculations. Your calculations are stored in an easy to read table.Projects can be saved and re-used with other SolidWorks models later.

Rather than being limited to the rows and columns of a spreadsheet,Mathcad has a “scratchpad” interface that records equations the waythey are normally recorded in industry texts. This allows for betterdocumentation of intellectual property. Its engineering calculationengine is capable of supporting complex mathematics that cannot becalculated by the internal SolidWorks calculation editor or yourstandard spreadsheet. For a review of Mathcad 12, click here.

MathInWorks costs $495 and is available for immediate download at the SolidVision website. Demo versions are also available.