Rapid prototyping CAD IDE for RepRap and RepStrap 3D printing machines.
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RapCAD is a Rapid prototyping CAD IDE for RepRap and RepStrap 3D printing machines. RapCAD is published under the GPLv3 licence.

Unlike most CAD packages RapCAD is not GUI based. One of the things that you often do when using a traditional CAD package, for example, is to create temporary construction lines that you either delete or put on a layer that is never used or seen. From another person’s perspective, it’s not always obvious how you arrived at your final design. In the software industry, the vital role of version control is that it allows the transcript of decisions made during the design process to be recorded. RapCAD solves this problem by allowing designs to be described with a modular scene description language. This not only provides compatibility with traditional text-based source control management software, but it also allows for the creation of re-usable component modules that can be distributed as a design library.




  • Download the latest installer.

  • Double click the installer exe and follow the on-screen instructions.


  • Supports: Trusty, Vivid

  • Simply run the following commands in a terminal.

    sudo apt-add-repository ppa:gilesbathgate/rapcad
    sudo apt-get update
    sudo apt-get install rapcad

Mac OS X