Open Source C CAD Software

FRAME3DD is a program for the static and dynamic structural analysis of two- and three-dimensional frames and trusses with elastic and geometric stiffness.

The count of vehicles is a key task in traffic gauging, as it provides information for designing new roads. This software presents an algorithm to detect and track vehicles in real time or from a video file.

The ADG library (Automatic Drawing Generation) is a set of functions focused on automating the drawing of mechanical parts. It is not a CAD system but a GObject-based library where a custom application can put common CAD entities such as paths, hatches and dimensions, to automatically create technical drawings. A demo application is provided in order to show the capabilities of the canvas. Although it is possible to interact with the library directly in C (that is what the adg-demo program is doing), the canvas is expected to be used from higher level languages, much in the same way as what done in the GNOME stack. Lua bindings based on LGI are already provided out of the box. The adg-lua project, downloadable from the "Files" section, provides Lua programs and demos that leverages these bindings.

Create 3D models easily in Win95,NT,XP,Vista,Win7 on all desktops, laptops and even netbooks without any 3D hardware acceleration. Supports 3DS, DXF, WRL, POV, ASC, spreadsheet & compressed files, extrude/sweep, mesh edit, parametric NURBS curves ...

The openLBMflow is an fast fluid flow solver based on Lattice Boltzmann Method. Main future are 2D and 3D code, single and multiphase models, Output data in VTK format can be directly open in Paraview. Download Windows or Linux binary version now.

LineColorPaint - Xlib 2D drawing engine. CAD.

The OpenMultiphysics project is the home for community-driven development of application integration technologies designed to aid in the design and implementation of multiphysics simulation capabilities. Design and development in this project is driven by the Consortium for Open Multiphysics. Feel free to visit us at our GitHub site as well: https://github.com/IllinoisRocstar/IMPACT

A robotic DIY styrofoam cutter consisting of one rotational and two translational axes. It cuts a variety of shapes out of styrofoam-like materials using a hot wire. This project documents the necessary hardware and software parts. Don't miss the follow-up project at http://raumschaum.org Its goal is to further develop hardware and software into an user friendly application.

Software application, firmware and U.I. for 4-motors 3-axis milling machine, open hardware, software and mechanics. See also project in details for schematics and images on http://www.contesti.eu/opensource/xyz-dc-motor-controller

Yet Another Computer-Assisted Design software

Command-line interface program that converts between IGES file and text file. IGES files are compatible with most of CAD systems. This program permits you to convert curves and points created in CAD program into coordinates in text file or you can do the opposite - convert text files into curves. It is especially suitable for curves described by hundreds of coordinates, e.g. airfoil contours of aircraft wings. Output filename is either out.txt or out.igs.

CalculiX Binaries for MS Windows, made with CYGWIN and ARPACK libraries. CalculiX is most popular FEA open-source package (like Code-Aster and Elmer-FEM). it is comparable in features with most known commercial packages like ANSYS, NASTRAN, Abaqus, etc. Good for structural, mechanical, thermal and fluid applications (trusses, plates, frames, shells, solid bodies). It has powerful nonlinear capabilities (including tension/compression only material like concrete) and most types of analysis (modal, thermal, buckling, coupled, etc) . See home page at http://www.dhondt.de New versions can be obtauned here: http://calculixforwin.blogspot.com/2015/05/calculix-launcher.html PS Appimages for Scilab, wxMaxima and GNU Octave were added