QCad

QCAD is a simple yet powerful mechanical drawing program that leverages standard input devices

Word processor to create documents and images of all types

Build and design scenes with characters that can be animated

A free application for Mac by Autodesk for visualizing and designing ideas for 3D printing

Create 3D images with tools to edit appearances

Simulate endless LEGO creations with this powerful and all-inclusive app

A full graphics suite that will help you illustrate, create graphics or work with photo design