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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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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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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Visualize distribution on the surface of a CAD object

I have STEP models of some parts, and after performing ray tracing, I'd like to illustrate the radiation load on these parts. Not the heat distribution, but just how much power is absorbed at each ...
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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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How to create a template part in Solidworks?

How can I prepare a part (like a 19" rack unit) as template with two variables? The user should be able to give values for the number of HE units and the depth and Solidworks creates a new part with ...
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151 views

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 ...