comparing two Free scripted CAD systems

Werner Almesberger werner at
Sat Jul 23 05:30:44 EDT 2011

David Reyes Samblas Martinez wrote:
> wow , a real interesting read dude, I will translate and post it on
> spanish and english :),

Not so quick ! ;-) I have some more interesting findings that make
Cadmium look quite a bit better:

Here's the entire thread:

I'm still not finished, though.

> some screen captures will help to make it more visual .
> can you upload it to the same directory than the rest,

I have a much better idea: you can take the screen captures you
like yourself ;-)

Installing OpenSCAD on Ubuntu is extremely simple:

add-apt-repository ppa:chrysn/openscad
apt-get update
aptitude install openscad

Cadmium is a bit more difficult because there's an incompatibility
with pythonOCC 0.4 and you therefore should build it from sources:

aptitude install gfortran
tar xfz pythonocc-0.5.tar.gz
cd pythonocc-0.5
cd src/contrib/smesh-
cmake .
make -j4
make install
cd ../../..
cd src/contrib/geom-
cmake .
make -j4
make install
cd ../../../src
python build -j4
python install

(Adjust the -j according to the number of cores you have. Not sure
if actually recognized -j4. This part of the build takes
quite a while.)

After installing pythonOCC, you can get Cadmium with

git clone git://
cd cadmium
python install

- Werner

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