DraftSight is a professional-grade 2D design and drafting solution that lets you create, edit, view and markup any kind of 2D drawing. A familiar user interface and a minimal learning curve facilitates an easy transition from your current CAD application.
A general purpose 2-dimensional CAD program. It supports industry standard DWG/DXF drawing formats. With A9CAD you can draw shapes such as line, rectangle, circle, poly-line, text and dimension; performing drawing modifications like move, scale, rotate, explode, trim, fillet and mirror; edit color, fill mode, line type and line width; change entity attributes via properties window. Manage drawing styles and settings and configure drawing environments.
OpenSCAD is a software for creating solid 3D CAD objects. It is free software and available for Linux/UNIX, MS Windows and Mac OS X.
Unlike most other 3D modeling programs like Blender, Sketchup, AutoCAD, or Solidworks, it’s really easy to get started in OpenSCAD.
Powerful cross-platform 3D CAD-CAM program that includes a built-in 3D OpenGL Viewer, NC-CPU, 3D geometry processing support and work with many different types of formats such as Step, Iges, VRML, DXF, SVG, etc.
A Cross Platform and Open Source Electronics Design Automation Suite.
KiCad is an open source software suite for Electronic Design Automation (EDA). The programs handle Schematic Capture, and PCB Layout with Gerber output. The suite runs on Windows, Linux and OS X and is licensed under GNU GPL v3.
Wings 3D is an advanced subdivision modeler that is both powerful and easy to use.
Wings 3D offers a wide range of modeling tools, a customizable interface, support for lights and materials, and a built-in AutoUV mapping facility.
There is no support in Wings for animation.
FreeCAD - free multi-platform CAD software to create 3D models. FreeCAD can be used in engineering design, product design, as well as in other areas relating to the implementation of engineering work. The program is well suited for creating models for the 3D printer, as it supports the STL format. Besides its own FreeCAD format software is compatible with the following formats: DXF, SVG (Scalable Vector Graphics), STEP, IGES, STL (STereoLithography), OBJ (Wavefront), DAE (Collada), SCAD (OpenSCAD), IV (Inventor) and IFC.
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