OpenSCAD is a software for creating solid 3D CAD objects. It focuses on CAD aspects rather than artistic ones.
References:
Topic: Debian documentation
Web: https://packages.debian.org/jessie/openscad
File: Debian -- Details of package openscad in jessie.pdf
Topic: CAD applications in Linux
Web: http://www.techdrivein.com/2011/08/8-best-cad-apps-for-linux.html
File: CAD apps in Linux.pdf
Topic: Top 10 Free CAD Software
Web: http://beebom.com/free-cad-software/
File: Top 10 Free CAD Software For 2016 _ Beebom.pdf

Installation:
$ sudo nano /etc/apt/sources.list
$ sudo apt-get update
$ sudo apt-cache search openscad
$ sudo apt-cache show openscad
$ sudo apt-get install openscad
