Computer-aided design (CAD) is the use of computer systems to assist in the creation, modification, analysis, or optimization of a design.

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Are there any affordable, good parametric modeling applications for OS X?

I've been searching with Google and Bing all morning and haven't found anything. I can't afford a $3000 cad system. I just want an affordable, hobby-level, parametric modeler.
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How do I flip a lens from a catalog in Zemax?

I am pretty new to this ray tracing software. It is simple to add custom surfaces and insert lenses from a catalog, but I can't figure out how to flip left-right a component without having to modify ...
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Multiple Image PDFs into a larger single page PDF

I work with CAD drawings that have been segmented into multiple PDFs for a specific floor sections of a building. I would like to CROP the unnecessary data and assemble the images into a single, same ...
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Converting multiple CAD files to PDF with script (XP)

Going off of what was covered in the thread here I have 2 questions. (I'm using the vbscript version that's in my SendTo folder and works nicely, thank you nixda! ) 1) How can I modify the script to ...
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Is there any free IGS viewer?

Are there any free or open source .IGS viewers that you've actually used on a regular basis? There are a lot of Google hits, but they seem like they're all free trials, misdirection to other ...
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Splitting a polygon (height mesh) in ArchiCad

I have received a DWG with heightlines for a terrain. Unfortunately, two heightlines intersect and is regarded as a closed polygon by ArchiCad. That means that when I now want to change the mesh point ...
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Can the DXF file format/AutoCAD store custom attributes for primitives?

I am currently researching ways to draw primitives associated with data attributes. Thus I came across CAD and the DXF file format, but I am no CAD user, and the documentation I found so far is ...
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311 views

Using Kinect to measure a building

working as a student trainee I was asked to measure a production hall (and all the machines etc in it) with a laser rangefinder and a folding rule and model it in 3D CAD software (Autodesk Inventor). ...
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Create extension till model plan and not till layout in Autocad

I am using Autocad 2012, there is model and layout. I want to create extension till model plan only but not till layout plan. Any idea how to do that? Also any link where I can get drawhatch11.vlx ...
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Which software can I use to create an engine illustration?

As an electromechanical student engineer, could you tell me which software can I use to create an animation like this one under Windows XP?
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SolidWorks ratio issue with printing in landscape

We run SolidWorks 2010 on XP. On one workstation when printing to the plotter in a 1:1 ratio in landscape mode it's off by small increments. He needs to adjust manually from 1:1 to 1:1.009 (for ...
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install cad program (Solvespace) no installer - on Win7-32 ?

Do I run PowerShell msi, exe.,on command line ? any advise where to start would be helpful. I am used to downloading programs with an Win installer. also I am a PC novice.
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Best solution: NAS with DMS for CAD workgroup

I am currently trying to figure out the best solution for a small (2-5 persons) workgroup that primarily works with CAD files and some standard office stuff. The users want to use the NAS as a central ...
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How a jointless pipe that forms a letter “T” is represented as CAD lines?

How a jointless pipe that forms a letter "T" is represented as CAD lines? I just cant emegine it nor as 2 lines nor as three..(
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Solid Edge ST6 - 2D Modeling: dimensions

I'm currently making some 2D drawings in Solid Edge ST6. I have several circles which I need to change so that they have an equal diameter and equal space between both circles, etc... Currently my ...
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Siemens PLM NX CAD, the green “SIEMENS” word in the title bar has become just the letter “S”

I am using Siemens PLM NX 8 CAD software on Windows 7 x64 On the right side of the user interface title bar, there is usually the word "SIEMENS" in green. Right now it only shows "S". What does ...
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OpenSCAD keeps crashing when I raise my precision past $fn=29?

OpenSCAD stopped working for me on designs that previously rendered fine. After testing I found out that any precision greater than $fn=29 causes the program to crash with an error message reading ...