ThreeDify Designer

It is an OpenGL based 3D solid modeling and CAD prototyping.

ThreeDify Designer is an OpenGL based 3D solid modeling, CAD prototyping and view mark-up application.

It features an intuitive, non-blocking and customizable GUI, an import/export plug-in architecture, unlimited undo/redo, up to 6 view clipping planes, associative 3D dimensions for accurate model measurements and much more.