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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Select radius of arc in 3D sketch

I am trying to draw 1/12th of a sphere. So far I have: If I connect the 1st and 2nd faces and connect the 2nd and 3rd faces it will be complete. The problem I am having is that while both the arcs ...
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16 views

Scale multiple DXF CAD files in AutoCAD?

I have a few thousand DXF CAD files that need to be scaled from imperial (inches) to metric (millimeters). The scale factor is fixed. Is there a way to scale all these files in batch via AutoCAD ...
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1answer
20 views

How to rotate a 3D object in SketchUp?

I'm trying to create something that looks like a large touch screen, which I intend to angle at 45° to the floor. I.e. imagine how you might arrange this touch screen so that it's at a comfortable ...
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22 views

How to properly display rays imported from Zemax in SolidWorks?

I imported rays from Zemax (optical ray tracing software) to Solidworks using the instructions found here: ...
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1answer
24 views

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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41 views

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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46 views

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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48 views

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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113 views

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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18 views

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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74 views

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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1answer
131 views

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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53 views

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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281 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 ...
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348 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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1answer
118 views

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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1answer
2k views

How to convert scad files to stl?

I am trying to export scad files from OpenSCAD to STL. I keep getting an error: Current top level object is not a 3d model. If it's not a 3d model, how do I convert it to 3d model If I know the ...
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142 views

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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2answers
2k views

Is there a general method to determine if a laptop can support 2x external monitors?

Question: Is there a general method, which would let me determine if a laptop can support 2x external monitors? Context: I’m shopping for a laptop, which would support my 2 main modes of operation. ...
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2answers
301 views

Image editing program wtih fine rotation mechanism or …

I have some A3 scans (due to not having a larger scanner) of a large technical drawing (6x A1 in length) which I need plotted out (I do, however, have a large plotter at my disposal). The scans are ...
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1answer
2k views

Lego Digital Designer not working on Windows 7

I'm having issues with Lego Digital Designer. I have a relatively new HP computer (less than 2 years old) running the latest up-to-date version of Windows 7 (64 bit). About a year ago I was using a ...
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1answer
352 views

Matlab 3D Vector

I have two 3D vectors in 3D line plot in Matlab. How I can specify an angle name between them? And also an angle between any two crossing lines?
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3answers
4k views

Software to easily design electrics / electronics circuits

Does anyone know a software to easily design electronic / electrics circuits (for resistors, capacitors, inductors, sources, transistors, ...) which already has a large and easy-to-use "library" of ...
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49 views

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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2answers
752 views

method for defining 2D/3D dimensions directly?

I'm just getting into Google SketchUp, and I'm already annoyed with the way rectangles are drawn and the Pull/Push tool works. I wanted to make a 2000x1000x100mm shape, but ended up with something ...
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2answers
2k views

Reliable, free 2D dimensional drawing tool

So far the CAD programs I have checked don't seem to support what I am looking for - but I'd be happy to be shown wrong :) I want to be able to create dimensioned, scalable 2D drawings - specifically ...
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2answers
3k views

What's a good simple free CAD program I can use for planning internal decorating of my house?

At the moment I'm using cut-to-scale pieces of paper to represent each piece of potential furniture. Is there a simple website or program which I can use instead? The room's dimensions are set in ...
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4answers
7k views

How to convert an image to a .dwg file

My girlfriend is making an art project where she is having an image printed and cut out on a metal plate. The firm responsible for doing this is demanding a .dwg file (and something called polyline; ...
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1answer
239 views

Looking for a free/cheap 2d CAD software for Linux which can measure ellipse arc length

I am currently using QCad community edition, and it is basically well suited to my needs, I don't need much more. However, there is a function I need which isn't present in QCad. I want to be able to ...
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1answer
45 views

Is there a performance penalty using in-place models/families in a large Revit project

(I'm quite new at Revit so apologies if my concepts are a bit inaccurate) I have heard using, in-place models in Revit projects is poor practice since it can slow down a large project. However I ...
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1answer
461 views

How to stretch timber framing in Revit using reference planes

I'm creating a family in Revit 2011, I've imported some timber framing components and placed a series of instances into the model. I then placed a reference plane at each end of the timber framing ...
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2answers
11k views

online 3D modelling software (like sketchup) [duplicate]

I'm at school and I need to use a 3D modelling software for my Tech project, however there current one is quite old and has a steep learning curve. As I'm at school I can't download or install or ...
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2answers
1k views

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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1answer
1k views

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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2answers
170 views

CAD software for OpenSolaris?

I would like to install CAD software again on my laptop. I used to use Rhinoceros 3d and AutoCAD for most stuff, but that was on the Windows side of things. What can I do for the Solaris side? ...
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0answers
98 views

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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5answers
20k views

Looking for freeware or opensource CAD that can read and edit .dwg [closed]

We have an engineer who needs CAD software which can read and edit .dwg files (preferably that runs on Windows but I could probably argue for a *nix box if needed). Before buying a commercial license ...
7
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1answer
4k views

How To Create A Parts List In Google SketchUp

I am using Google SketchUp version 7.0.10247 to design a kitchen table that I would like to build. Once I am done with the design, I'd like be able to produce a parts list that I can print out and ...