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OpenSCAD - The Programmers Solid 3D CAD Modeller

Merge pull request #712 from openscad/number-fix

Catch exceptions caused by parsing invalid double values (fixes #706).
latest commit fcf7b27257
Torsten Paul t-paul authored
Octocat-spinner-32 contrib add children primitive, and refactor a little
Octocat-spinner-32 doc release notes update
Octocat-spinner-32 examples #504 Updated example: child() -> children()
Octocat-spinner-32 icons Make the desktop file valid
Octocat-spinner-32 libraries Updated MCAD
Octocat-spinner-32 patches #559 Fix Qt font rendering on OS X 10.9
Octocat-spinner-32 qxs Merge branch 'qcodeedit' of int…
Octocat-spinner-32 releases Release preparations
Octocat-spinner-32 scripts do not build gettext or glib2 by default. fix glib2.pri to find syste…
Octocat-spinner-32 src Catch exceptions caused by parsing invalid double values (fixes #706).
Octocat-spinner-32 test-code Removed old code made redundant by tests
Octocat-spinner-32 testdata typo
Octocat-spinner-32 tests Only upload failed tests
Octocat-spinner-32 .gitignore Update .gitignore.
Octocat-spinner-32 .gitmodules Make MCAD submodule relative to openscad toplevel.
Octocat-spinner-32 .travis.yml Reenable master branch for travis
Octocat-spinner-32 COPYING Fixed FSF address
Octocat-spinner-32 Info.plist New feature: Drag and drop stl, off or dxf files will create an impor…
Octocat-spinner-32 OpenSCAD.sdef Experimental Apple Event hack; you can now do 'tell application "Open…
Octocat-spinner-32 do not suggest the 'time saver' of only opencsg or cgal build, too co…
Octocat-spinner-32 RELEASE_NOTES Release preparations
Octocat-spinner-32 Fixed download URL
Octocat-spinner-32 Move files to
Octocat-spinner-32 bison.pri Put back some stuff necessary for building on non-MSVC platforms for now
Octocat-spinner-32 boost.pri Fix issue with boost and Apple namespace pollution
Octocat-spinner-32 cgal.pri In this commit i'll change just the Qt project, c and header files to…
Octocat-spinner-32 common.pri Clipper is bundled
Octocat-spinner-32 dsa_pub.pem Added support for signing binaries
Octocat-spinner-32 eigen.pri fix eigen bugs mingw32/64
Octocat-spinner-32 flex.pri Modified parse to allow overloading of variables in local blocks. Als…
Octocat-spinner-32 glew.pri detect netbsd / freebsd after linux not before, for bison/flex.
Octocat-spinner-32 glib-2.0.pri fix glib2 build for mingw. update mxe target to '.static'
Octocat-spinner-32 mingw-cross-env.pri fix mingw cross build
Octocat-spinner-32 mjau.gdb First version of automatic updates for Mac
Octocat-spinner-32 opencsg.pri Some more build system cleaning
Octocat-spinner-32 openscad.appdata.xml AppData: Do not have 2 default screenshots
Octocat-spinner-32 Moved MACOSX_DEPLOYMENT_TARGET to the deploy script to allow building…
Octocat-spinner-32 Replaced static paths with $$PWD and $QTDIR
Octocat-spinner-32 openscad.qrc Add GUI Settings page to enable/disable features.
Octocat-spinner-32 openscad_win32.rc Copyright updates
Octocat-spinner-32 gcc and clang profiles
Octocat-spinner-32 gcc and clang profiles
Octocat-spinner-32 Experimental homebrew dependency build
Octocat-spinner-32 Fix issue with boost and Apple namespace pollution
Octocat-spinner-32 sparkle.pri Mac fixes: Moved sparkle config to sparkle.pri. Link with Application…
Octocat-spinner-32 valgrind.supp Killed some memory leaks
Octocat-spinner-32 version.pri Added OPENSCAD_COMMIT define to show which git commit a binary actual…
Octocat-spinner-32 win.pri In this commit i'll change just the Qt project, c and header files to…
Octocat-spinner-32 winconsole.pri add wrapper code from nop head, mod build scripts

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What is OpenSCAD?

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OpenSCAD is a software for creating solid 3D CAD objects. It is free software and available for Linux/UNIX, MS Windows and Mac OS X.

Unlike most free software for creating 3D models (such as the famous application Blender) it does not focus on the artistic aspects of 3D modeling but instead on the CAD aspects. Thus it might be the application you are looking for when you are planning to create 3D models of machine parts but pretty sure is not what you are looking for when you are more interested in creating computer-animated movies.

OpenSCAD is not an interactive modeler. Instead it is something like a 3D-compiler that reads in a script file that describes the object and renders the 3D model from this script file (see examples below). This gives you (the designer) full control over the modeling process and enables you to easily change any step in the modeling process or make designs that are defined by configurable parameters.

OpenSCAD provides two main modeling techniques: First there is constructive solid geometry (aka CSG) and second there is extrusion of 2D outlines. As data exchange format format for this 2D outlines Autocad DXF files are used. In addition to 2D paths for extrusion it is also possible to read design parameters from DXF files. Besides DXF files OpenSCAD can read and create 3D models in the STL and OFF file formats.

Getting started

You can download the latest binaries of OpenSCAD at Install binaries as you would any other software.

When you open OpenSCAD, you'll see three frames within the window. The left frame is where you'll write code to model 3D objects. The right frame is where you'll see the 3D rendering of your model.

Let's make a tree! Type the following code into the left frame:

cylinder(h = 30, r = 8);

Then render the 3D model by hitting F5. Now you can see a cylinder for the trunk in our tree. Now let's add the bushy/leafy part of the tree represented by a sphere. To do so, we will union a cylinder and a sphere.

union() {
  cylinder(h = 30, r = 8);

But, it's not quite right! The bushy/leafy are around the base of the tree. We need to move the sphere up the z-axis.

union() {
  cylinder(h = 30, r = 8);
  translate([0, 0, 40]) sphere(20);

And that's it! You made your first 3D model! There are other primitive shapes that you can combine with other set operations (union, intersection, difference) and transformations (rotate, scale, translate) to make complex models! Check out all the other language features in the OpenSCAD Manual.


Have a look at the OpenSCAD Homepage ( for documentation.

Building OpenSCAD

To build OpenSCAD from source, follow the instructions for the platform applicable to you below.


To build OpenSCAD, you need some libraries and tools. The version numbers in brackets specify the versions which have been used for development. Other versions may or may not work as well.

If you're using a newer version of Ubuntu, you can install these libraries from aptitude. If you're using Mac, or an older Linux/BSD, there are build scripts that download and compile the libraries from source. Follow the instructions for the platform you're compiling on below.

Getting the source code

Install git ( onto your system. Then run a clone:

git clone git://

This will download the latest sources into a directory named 'openscad'.

To pull the MCAD library (, do the following:

cd openscad
git submodule update --init

Building for Mac OS X


  • XCode, including XCode command-line tools (install from XCode Preferences).
  • CMake and pkg-config, both can be installed manually or through MacPorts/homebrew.

Then after you've cloned this git repository, run the script that sets up the environment variables.


(or if you want to use the clang compiler instead of gcc). Then run the script to compile all the prerequisite libraries above:


You can also install the prerequisites using MacPorts. Unfortunately, brew doesn't yet support CGAL and OpenCSG.

After that, follow the Compilation instructions below.

Building for Linux/BSD

First, make sure that you have git installed (often packaged as 'git-core' or 'scmgit'). Once you've cloned this git repository, download and install the dependency packages listed above using your system's package manager. A convenience script is provided that can help with this process on some systems:

sudo ./scripts/

After installing dependencies, check their versions. You can run this script to help you:


Take care that you don't have old local copies anywhere (/usr/local/). If all dependencies are present and of a high enough version, skip ahead to the Compilation instructions.

Building for Linux/BSD on systems with older or missing dependencies

If some of your system dependency libraries are missing or old, then you can download and build newer versions into $HOME/openscad_deps by following this process. First, run the script that sets up the environment variables.

source ./scripts/

Then run the script to compile all the prerequisite libraries above:


Note that huge dependencies like gcc or qt are not included here, only the smaller ones (boost, CGAL, opencsg, etc). After the build, again check dependencies.


After that, follow the Compilation instructions below.

Building for Windows

OpenSCAD for Windows is usually cross-compiled from Linux. If you wish to attempt an MSVC build on Windows, please see this site:

To cross-build, first make sure that you have development tools installed to get GCC. Then after you've cloned this git repository, start a new clean bash shell and run the script that sets up the environment variables.

source ./scripts/ 32

Then run the script to download & compile all the prerequisite libraries above:

./scripts/ 32

Note that this process can take several hours, as it uses the system to cross-build many libraries. After it is complete, build OpenSCAD and package it to an installer:

./scripts/ mingw32

If you wish you can only build the openscad.exe binary:

cd mingw32
qmake .. CONFIG+=mingw-cross-env

For a 64-bit Windows cross-build, replace 32 with 64 in the above instructions.


First, run 'qmake' from Qt4 to generate a Makefile. On some systems you need to run 'qmake4', 'qmake-qt4' or something alike to run the qt4 version of the tool.

Then run make. Finally you might run 'make install' as root or simply copy the 'openscad' binary ( on Mac OS X) to the bin directory of your choice.

If you had problems compiling from source, raise a new issue in the issue tracker on the github page.

This site and it's subpages can also be helpful:

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