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#Redirect [[List of CAD Programs]]
==Overview==
See [[CAD Discussion]] and [[CAD (Computer Aided Design)|CAD]]
 
Here are some open source options for [[CAD]]. Because the open-source options for CAD are rather limited (there are currently no good open source parametric 3D CAD programs), significant closed-source programs are also listed at the end.
 
==Open Source==
 
===[[Blender]]===
* Mesh-based direct modelling. Not parametric.
* Focused on artistic 3D modelling and animation.
* No CAD functionality so it is not suited to CAD use, though it can be used for very basic prototyping.
 
===[http://sourceforge.net/apps/mediawiki/free-cad/index.php?title=Main_Page FreeCAD]===
* The most promising open source CAD software by far, but still has a long way to go.
* Focused on mechanical engineering and product design.
* Feature-based, parametric, with 2D sketch input with constraint solver.
* Based on OpenCasCade and Coin3D (an implementation of Open Inventor).
* Windows, Mac OSX and Linux.
* Supports brep, nurbs, booleans operations or fillets.
* "A modular architecture that allow plugins (modules) to add functionality to the core application. Those extensions can be as complex as whole new applications or as simple as python scripts or self-recorded macros."
* Built-in python interpreter for macros and scripts.
* Import/export to standard formats such as STEP, IGES, OBJ, DXF, SVG, U3D or STL.
 
===[http://www.salome-platform.org/ Salomé]===
* Focused on numerical simulation, but can apparently also edit CAD data.
 
===[http://brlcad.org/ BRL-CAD]===
* BRL-CAD is a powerful cross-platform open source solid modeling system that includes interactive geometry editing, high-performance ray-tracing for rendering and geometric analysis, image and signal-processing tools, a system performance analysis benchmark suite, libraries for robust geometric representation, with more than 20 years of active development. Operating Systems: All major platforms.
* Focused on analysis, rather than modelling (specifically ballistics research).
* CSG-based - models are built via combinations of basic shapes like spheres and cones, rather than extruded from arbitrary sketches.
* Very old code base.
* Actively developed.
 
===[http://avocado-cad.sourceforge.net/ avoCADo]===
* Abandoned since 2008.
 
===[[QCad]] Community Edition===
* Available only as [ftp://anonymous:anonymous@ribbonsoft.com/archives/qcad/qcad-2.0.5.0-1-community.src.tar.gz source code]
* [http://www.ribbonsoft.com/rsforum/viewtopic.php?t=237 How to get support for the QCad Community Edtion?]
* 2D only.
* Frustrating UI.
 
===[http://librecad.org/cms/home.html LibreCAD]===
* [http://librecad.org/cms/home.html LibreCAD] is a fork of the QCad Community Edition
* Available for Linux, OSX and Windows
* The 1.0.0 series is still based on QT3
* The forthcoming 2.0.0 series is based on QT4
 
===[http://www.collabcad.com/ CollabCAD]===
'''CollabCAD''' is a 3D CAD/CAM Software system for the collaborative design & development of Industrial Designs. CollabCAD is an initiative of National Informatics Centre (NIC, Department of Information Technology), Bhabha Atomic Research Center (BARC, Department of Atomic Energy) and Vikram Sarabhai Space Center (Department of Space, VSSC).
* Based on OpenCascade.
* Based on sketch-and-extrude paradigm.
* Windows and Linux
* Limitation: Free version will not save a drawing of more than 900 entries.
 
===[http://openscad.org/ OpenSCAD]===
* Procedural script-based CAD (there is no editor GUI).
* Uses CSG ([[wikipedia:constructive solid geometry|constructive solid geometry]]) internally and can generate STL but also *import* STL (and use CSG on the resulting model). It also can read 2D designs in DXF and extrude parts of it into the 3rd dimension ([[wikipedia:extrusion|extrusion]] can be linear or on different paths, so you can make, e.g., a torus by extruding a circle on a circular path).
* Suitable for very simple shapes which benefit from being parametrically defined, e.g. gears, fasteners, wheels, etc.
* Unsuitable for complex models.
::http://www.cannymachines.com/entries/9/openscad_dimensioned_drawings
 
===[http://www.pythonocc.org pythonOCC]===
* Object oriented script-based CAD (there is an editor [http://www.pythonocc.org/community/related_projects/pycado/ GUI]).
* based on Open CASCADE. It can handle STEP (AP203 and AP214), IGES, STL (ascii/binary) and VRML.
* It has parametric design, extrude/revolve/sweep as well as boolean operations, FE-meshing, rigid body simulation, but no 2D-drawing capability.
* Operating Systems: Linux, Mac OSX or Windows.
* The scripting commands are simple and powerful. As in openSCAD and FreeCAD the python scripts would allow for distributed version control to easily organize community collaboration with existing tools (like [http://en.wikipedia.org/wiki/Git_%28software%29 git] or [http://en.wikipedia.org/wiki/Mercurial mercurial] and free public [https://git.wiki.kernel.org/index.php/GitHosting git-hosting]). Draw back is the lack of 2D-drawing capability.
 
===[http://code.google.com/p/heekscad/ HeeksCAD]===
* Development halted.
* Use the geometric constraints solver to create accurate drawings from rough sketches
* Solid modeling is provided by Open CASCADE
 
===[http://heeks.net/ HeeksCNC]===
* CAD/CAM application written in Python that can help you produce the NC code for your [[milling machine]].
 
===[http://www.opencascade.org OpenCASCADE]===
* Open CASCADE Technology is software development platform freely available in open source. It includes components for 3D surface and solid modeling, visualization, data exchange and rapid application development. Operating Systems: Linux, Sun Sparc, or Windows.
* Seems too ''clunky'' without a better GUI.
 
===[http://www.cademia.org/frontend/index.php?folder_id=251 CADEMIA]===
* [http://www.cademia.org/frontend/index.php?folder_id=251 CADEMIA] is a modern CAD system with a full functionality for civil engineering and architecture.
* 2D only, focused on architecture.
* It is written in Java and is available for Windows, Mac and Linux
* Open source
* It is available in English and German
 
==Closed Source, Free==
 
===[http://www.ptc.com/products/creo-elements-direct/modeling-express/ PTC Creo Elements Direct Modelling Express 4.0]===
* Ridiculous name.
* Limited to something like 50 parts per assembly. I believe that is the only limitation of the free version.
* Direct extrusion-based modelling, similar to Sketchup but much more powerful.
* Probably the best free CAD on Windows.
* Windows only. Sort of runs in wine, but not usably (crashes often, UI flickers).
 
===[http://sketchup.google.com/ Google SketchUp]===
* Focused on architectural sketching.
* Free, but not open source, works in linux under Wine. See [[Sketchup on Linux]] for installation notes.
* Direct modelling. Not parametric, and does not allow changing dimensions to exact values.
* Better than Blender, but still not really suitable for CAD.
 
===[http://www.artifice.com/free/dw_lite.html DesignWorkshop Lite]===
* Only Windows & Mac versions
* For home design and visualization of architecture, landscapes, exhibits, urban design, or any kind of spatial design
 
===[http://www.3ds.com/products/draftsight/free-cad-software/ DraftSight]===
* Good AutoCAD compatibility.
* Focused on 2D drafting, very little 3D support.
 
==Closed Source, Expensive==
 
===[http://www.solidworks.com/ Solidworks]===
* Extremely popular and powerful history-based parametric 3D CAD.
* Modern usable UI.
* Price in the £1000-range.
* Windows only. Can be started in wine, but not usable.
* Focused on mechanical engineering and product design. Not suited to architecture.
 
===[http://www.ptc.com/ Pro Engineer]===
* Main competitor to Solidworks.
* Used to run on Linux natively, new versions are Windows-only. The last Linux version was Pro/E Wildfire 4
* Archaic Motif GUI.
* Modelling paradigm essentially identical to Solidworks.
* Now known as "Creo Elements/Pro" (I'm unsure if it is based on the same code as Pro/E was).
 
===SolidEdge===
* Solidworks competitor from Seimens.
* Parametric feature-based modelling.
* Windows only.
* Has a free 2D drafting option
 
===[http://www.ashlar.com/ Ashlar-Vellum]===
* Parametric feature-based modelling, very efficient agile modelling.
* Windows only.
* Has 2D drafting option
 
===Autodesk Intentor===
* Another solidworks competitor.
* Windows only.
 
===AutoCAD===
* Originally 2D-only and it shows.
* More architecturally-focused than Solidworks and Pro/E.
* Originator of the DXF format.
* Used to be the industry standard. Much less so today.
 
===[http://www.plm.automation.siemens.com/en_us/products/nx/ NX]===
 
* Super high-end CAD from Seimens.
* Very similar to Solidworks. If you have used one it will not take long to learn the other.
* Price is "it doesn't matter if you ask or not - you can't afford it". This is what they use to design nuclear submarines.
* As a result, Googling for help is no use.
* Runs on Linux natively.
 
==Electronics CAD==
 
===Open Source===
* [http://www.lis.inpg.fr/realise_au_lis/kicad/ KiCAD]
* [http://www.gpleda.org Gnu Electronic Design Automation] tools.
 
===Closed Source===
* Eagle. Terrible terrible UI.
* DesignSpark from RS. Looks much much better than Eagle, KiCAD, and GEDA.
 
==See Also==
* [[CAD by Mariano Alvira]]
* [[SKDB]]
* Discussion on [http://ubuntuforums.org/archive/index.php/t-190224.html CAD options] for Ubuntu
* [[3D file viewer]]
* [http://www.freecad.com/ FreeCAD] and [http://www.freebyte.com/cad/cad.htm], directories of free CAD, CAM and CAE programs
* Printed Circuit Board Routing Software: http://www.freerouting.net/
* [http://qucs.sourceforge.net/ Quite Universal Circuit Simulator]
* [[p2p-foundation: Open Source CAD Applications]]
* [http://www.rendercity.com/ Rendercity], an online Radiance rendering service. One rendering job at a time, for free, at resolutions up to 768 x 768 pixels
* DraftSight - 2D drafting with dimensioning. [http://www.draftsight.com]
 
[[Category: Software]]
[[Category: CAD]]
[[Category:Digital Fabrication]]

Latest revision as of 21:25, 5 April 2016

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