We examine an open source 3D set of tools called Blender, as a powerful tool for concept design and the many ways it can be used as a career, with main uses being through game design, architecture and design for the film industry. This paper also talks about the traditional methods of animation and how Blender has improved them. The unique features of Blender are examined in terms of ease of use and integrated nature, since Blender incorporates a simulation engine and a game engine that can be used creatively in the design process. The unique data structure of Blender is examined with the features and workflow that this structure brings to the design process. Also, a simple comparison is made between Blender and 3D Max in terms of features and workflow as visualisation tools.