3D Modeling
3D Modeling using tools such as Alibre Atom 3D, Blender, and Plasticity
Since CAD programs were first created, there have been a number of different approaches. The most common ones, and example implementations may be:
Mechanical modeling --- Alibre Atom 3D, Dune 3D
Mesh sculpting --- Blender
NURBS --- Plasticity 3D
This page will consider these three concepts and ways in which they might be used.
Dune 3D is an opensource application:
and is available as an installable download for Windows: https://github.com/dune3d/dune3d/releases/tag/v1.1.0 and as source code with instructions for building in Mac OS X and Linux.
When first launched, it appears as a small window:

with a list of recent files (if applicable) and buttons for creating a new document or opening an existing one, as well as standard window controls and interface elements for other commands such as maximizing:

Creating a new document brings up a window:

which along with basic commands is discussed at: https://docs.dune3d.org/en/latest/usage.html
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