AutoCAD is an industry leader in 2D and 3D CAD software and in design, drafting, modelling, architectural drawing and engineering software. Also it is most used computer program in education field, It you are looking to get AutoCAD and this type of design and work then it quite an expensive for you to buy this program.
If you are looking to do this type of design and architecture work then there are some free Open Source alternatives tools then can also do all kind of task smoothly and effectively. Also, if you need some 2D and 3D design work done and don’t have the money to spring for AutoCAD, here are some great, completely free alternatives to for you kindly check out.
1. DoubleCAD XT:
DoubleCAD™ XT is an AutoCAD LT® work-alike. But free.It’s also 5-Star Rated from the editors at CNET… and the #1 most downloaded free CAD at Download.com.Powerful 2D CAD capabilities and great .DWG and .SKP compatibility — make DoubleCAD XT an invaluable free companion for AutoCAD® and SketchUp™ users alike and the best alternative to AutoCAD LT on the market.
DraftSight is a proprietary freemium 2D computer-aided design (CAD) software application developed by Dassault Systèmes. It lets users create, edit and view .dwg and AutoCAD DXF files. The user interface is quite similar to AutoCAD.The standalone, single-user version of DraftSight is free until a user saves or prints a document for the first time.
BRL-CAD is a constructive solid geometry (CSG) solid modeling computer-aided design (CAD) system. It includes an interactive geometry editor, ray tracing support for graphics rendering and geometric analysis, computer network distributed framebuffer support, scripting, image-processing and signal-processing tools. The entire package is distributed in source code and binary form.
FreeCAD is a free and open-source (under the GPL & LGPL licenses) general purpose parametric 3D CAD modeler. FreeCAD features tools similar to CATIA, Creo, Autodesk Inventor, SolidWorks or Solid Edge, and therefore also falls into the category of Mechanical computer-aided design (MCAD), PLM, CAx and CAE.FreeCAD is aimed directly at mechanical engineering and product design but also fits in a wider range of uses around engineering, such as architecture or other engineering specialities. FreeCAD is currently in a beta stage of development.
LibreCAD is a free Computer Aided Design (CAD) application for 2D design. It works on Linux, Mac OS X, Unix and Microsoft Windows operating systems.LibreCAD was developed as a fork of QCad Community Edition. The GUI of LibreCAD is based on Qt4 libraries, so it runs on several platforms in the same way.LibreCAD uses the AutoCAD DXF file format internally for import and save files, as well as allowing export to many other file formats.
OpenSCAD is a free software application for creating solid 3D CAD objects. It is not an interactive modeler, but rather a 3D-compiler. An OpenSCAD program specifies geometric primitives and defines how they are modified and manipulated to render a 3D model. OpenSCAD is available for Windows, Linux and OS X. It does constructive solid geometry (CSG).As of 2015, it uses computational Geometry Algorithms Library (CGAL) as the basic Computational Solid Geometry engine.
7. 3DVIA Shape:
3DVIA Shape is a free, online 3D modeling application that lets users create 3D models and share them in the 3DVIA Community. The application targets novice 3D modelers who want to design for recreational purposes, as well as experienced 3D modelers who need to create draft model prototypes.One of the best features bundled in this program gives you the possibility to automatically measure the selected distance whenever you add a new geometric component.
gCAD3D is a 3D CAD CAM application that features an integrated 3D OpenGL viewer, a program interpreter for geometry and NC-commands in 3D, an integrated NC-processor, and a programming interface for user programs. It has support for both importing and exporting Step, Iges, DXF, and VRML files.This application requires GTK+ version 3.0.x. or 2.0.x. Other dependencies include: glibc 2.3.3, GTK+2, OpenGL(Mesa).
MEDUSA4 is available on all major platforms, including Windows, Sun SPARC Solaris and Linux, and is highly customisable to suit specific industry requirements. The software is modular, allowing you to choose the add-ons you require.MEDUSA4 includes add-ons for advanced parametrics, 3D assemblies, the incorporation of legacy data and colour images through the use of raster technology, standard CAD parts, sheet metal design, and P&IDs.
pCon.planner is a space planning, graphical product configuration, quotation creation and communication solution. The application is developed by EasternGraphics GmbH in Ilmenau (Thuringia/Germany). There is a free of charge version, without configuration capabilities as well as cost based versions (ME and PRO).pCon.planner is a free 3D design software specially design for interior design industry. With pCon.planner user can plan and visualize their space and interior for Rooms, Also user can use thousands of 3D models in DWG format from other software.