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LibreCAD: Open Source 2D CAD
LibreCAD is a comprehensive 2D CAD application that is free to download and install. It is available in twenty languages and runs on Windows, Mac and Linux.
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Bricksmith: Lego Buildings on your Mac
With this program you can make virtual Lego creations on your Mac. You can use the supplied LDraw library for this, a collection of examples in 3D that have been created by different users. You will never be short of stones, but it does require …
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