Hello Linux Geeksters. As you may know, GCAD3D is a free 3D CAD-CAM app capable of interpreting geometry and NC-command in 3D, with an integrated NC-processor and a programming interface for user programs.

The latest version available is GCAD3D 2.22, which has been recently released, coming with the below changes:
- dxf-import: bug POLYLINES and rotation (code 50) with INSERT fixed
- dxf-export: export contours
- Step-import: new functions and bugfixes
- structure of contour (CCV) completely changed.
- CAD-Measure can select vertex-points
- CAD-Interaction checkbox, can modify all numeric values
In this article I will show you how to install GCAD3D 2.22 on Ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr, Linux Mint 17.1 Rebecca, Linux Mint 17 Qiana, Pinguy OS 14.04, Elementary OS 0.3 Freya, Deepin 2014, Peppermint Five, LXLE 14.04, Linux Lite 2.0, Debian 8 Jessie and other Ubuntu/Debian derivative systems.
There is no repository available, but we can easily download the deb packages from the official site and install them via command-line (I prefer gdebi over dpkg due to the fact that it also handles dependencies). Follow the instructions for your system’s architecture exactly, in order to get a successful installation.
How to install GCAD3D 2.22 on 32 bit Ubuntu, Linux Mint, Debian, Pinguy OS and Elementary OS:
$ wget gcad3d.org/download/gCAD3D-2.22-Linux-x86.deb
$ sudo apt-get install gdebi
$ sudo gdebi gCAD3D-2.22-Linux-x86.deb
Optional, to remove gCAD3D, do:
$ sudo apt-get remove gCAD3D*
How to install GCAD3D 2.22 on 64 bit Ubuntu, Linux Mint, Debian, Pinguy OS and Elementary OS:
$ wget gcad3d.org/download/gCAD3D-2.22-Linux64.deb
$ sudo apt-get install gdebi
$ sudo gdebi gCAD3D-2.22-Linux64.deb
Optional, to remove gCAD3D, do:
$ sudo apt-get remove gCAD3D*