Toymods Car Club Inc: The Outhouse => CAD (newby info)?

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4ageeza
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Adelaide, drift capital
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May 2004

Re: CAD (newby info)?	Fri, 18 June 2004 02:04

Inventor is the latest 3D program from Autodesk, and from my experience it is not a bad program. It has good 3D capabilities and good features such as sheetmetal design, drafting and assemblies. Mechanical Desktop is basically AutoCAD, but with better 3D capabilities, and can import/export alot more file formats. In mechanical industries, these two programs are excellent entry level CAD programs and the have decent capabilities, as they are very cheap relative to high end packages. It is well suited to small businesses and contract engineers. I am doubtful that it is used on a large scale by any large mechanical design/engineering comapanies. The reason why I think AutoCAD is shit for any mechanical design, is that a drawing in AutoCAD is unnassociative. Therefore lines, symbols, dimensions are linked to anything other than a series of lines/curves. In a parametric/associative 3D CAD program, a part can be modelled in 3D and then be drafted in the drafting part of the program. In drafting, views are generated off the model, as are dimensions and symbols. Therefore if the design is changed, the drawing is automatically updated. These days businesses are steering away from drafting and drawing generation, as it takes lots of time. Businesses would prefer a part to be designed, checked and tested by 3d CAD, and then be sent off as model (an perhaps a very simple drawing containing only critical dimensions and tolerances) for manufacturing. I haven't ever used IDEAS, so I am unsure how easy it is. However I was told that IDEAS and Unigraphics are owned by the same company, and in the next few years will merge together into the one program. Therefore Holden and Ford will design their cars using the same software. I have used Unigraphics for over two years now, and it is soooo powerful, and relatively easy to use, however it costs so much $$. [Report message to a moderator]

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