Cross-platform Open-source 2D CAD
LibreCAD is an open-source cross-platform 2D CAD program, which is translated in over 30 languages. http://translate.librecad.org LibreCAD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. License: https://www.gnu.org/licenses/gpl-2.0.html Source: https://github.com/LibreCAD/LibreCAD/releases Track the latest development: https://github.com/LibreCAD/LibreCAD/milestones https://github.com/LibreCAD/LibreCAD/commits/master Create bug reports and feature requests: https://github.com/LibreCAD/LibreCAD/issues Get help: - http://forum.librecad.org - http://wiki.librecad.org
a parametric 3D CAD modeler
WARNING: FreeCAD has moved! FreeCAD code and release files are now hosted on github at https://github.com/FreeCAD/FreeCAD Only older files and code are available here. FreeCAD is a general purpose feature-based, parametric 3D modeler for CAD, MCAD, CAx, CAE and PLM, aimed directly at mechanical engineering and product design but also fits a wider range of uses in engineering, such as architecture or other engineering specialties. It is 100% Open Source and extremely modular, allowing for very advanced extension and customization. FreeCAD is based on OpenCasCade, a powerful geometry kernel, features an Open Inventor-compliant 3D scene representation model provided by the Coin 3D library, and a broad Python API. The interface is built with Qt. FreeCAD runs exactly the same way on Windows, Mac OSX and Linux platforms.
Dedicated to computer-aided engineering Linux distribution
CAELinux is a live DVD Linux distribution dedicated to open source engineering with a focus on Computer Aided Engineering and Scientific Computing. Based on Ubuntu, it features a full software solution for open source production development with many CAD/CAM/CAE applications. It includes Freecad & LibreCad 2D/3D CAD systems, Salome & GMSH pre/post processors, Code_Aster & Calculix non-linear FE solver, Code-Saturne & OpenFOAM CFD solvers, Elmer multiphysics suite, Helyx-OS, Discretizer, EnGrid & Netgen 3D meshers, GEDA, KiCad & Arduin electronic design tools, PyCAM, OpenSCAM & Cura for CNC G-code generation, GNU Octave, Rkward, wxMaxima, Scilab, Scipy & Spyder for computationnal & mathematics modeling, and many more.
SUMO is a microscopic road traffic simulation.
SUMO is an open source, highly portable, microscopic and continuous road traffic simulation package designed to handle large road networks. It allows for intermodal simulation including pedestrians and comes with a large set of tools for scenario creation. Please note that code and issue tracker are now at https://github.com/DLR-TS/sumo/
A cross-platform, open-source, alternative to NIST REFPROP. Based on reference-accuracy equations of state and transport property correlations for refrigerants like Water, CO2, R134a, Nitrogen, Argon, Ammonia, Air, R404a, R410a, Propane and many others. A selection of secondary working fluid properties are also available. Can also make use of REFPROP when available. In addition, calculations for Humid Air Properties based on ASHRAE RP-1485 are provided. Wrappers are available for MATLAB, Octave, Python, C#, Fortran and many more.
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
DXF2GCODE is a tool for converting 2D (dxf, pdf, ps) drawings to CNC machine compatible GCode. Windows, Linux, and Mac support by using python scripting language.
Open Source CAM - Toolpath Generation for 3-Axis CNC machining
Inkcut is a program used to send HPGL directly to cutter or plotter from Inkscape. Inkcut is used for sign making, namely cutting vinyl graphics, letters, and decals. It should support any device that uses HPGL.
A graphical tool to design a bicycle (s) geometry and derive drawings from its configuration
An STL format importer/exporter plugin script for Google SketchUp. Supports both binary and ASCII import and export.
EdytorNC is text editor for CNC programmers. Some features : bolt holes calculation; solutions of triangles calculation; speed, feed calculation; conversion inch/mm, mm/inch; code colouring; RS232 data transmission with automatic file saving and possibility to download new CNC program directly from machine (beta function, look in tool tips in serial port configuration dialog). Clipboard to keep texts from system clipboard.
Simple CAD program
ZCAD is simple CAD program with dxf2000 file format support. Source code available here http://svn.shamangrad.net/zcad/trunk/
Static and Dynamic Structural Analysis of 2D and 3D frames.
FRAME3DD is a program for the static and dynamic structural analysis of two- and three-dimensional frames and trusses with elastic and geometric stiffness.
Impact is an explicit Finite Element Program Suite which simulates dynamic impact events. It has a range of elements, contact handling and different material laws. Models can be created, solved and analyzed with the included pre- and postprocessor. Impact is based on an Explicit Time stepping algorithm. These kind of codes are used to simulate dynamic phenomena such as car crashes and similar, usually involving large deformations.
Intelligent formulas: Numeric and symbolic calculations in Openoffice Writer. The iMath extension to Libreoffice and OpenOffice enables numeric and symbolic calculations inside a Writer document. If your OS can install .deb packages, have a look at my PPA http://launchpad.net/~jrheinlaender/+archive/ppa
A viewer for Eurocontrol Asterix files
AsterixInspector - displays contents of files in Eurocontrol Asterix format. Asterix is a binary data exchange format in aviation, standardized by Eurocontrol.
TexGen is a geometric textile modelling software package to be used for obtaining engineering properties of woven textiles and textile composites.
SWAN is a third-generation wave model, developed at Delft University of Technology, that computes random, short-crested wind-generated waves in coastal regions and inland waters.
PythonCAD is a CAD package written, surprisingly enough, in Python using the PyQt interface. The PythonCAD project aims to produce a scriptable, open-source, easy to use CAD package for Linux (Cross Platforms)
Software for electromagnetic simulation
MaxFem is an open software package for electromagnetic simulation by using finite element methods. The package can solve problems in electrostatics, direct current, magnetostatics and eddy-currents. We have moved the installers to the MaxFEM website (see below). In order to improve MaxFEM, we will require you to fill out a simple form before downloading them.
A python gear generator that serves as CAE/CAD-preprocessor for involute gears based on pythonOCC. It allows for the computation of dynamic properties and the creation of exact geometries from a minimal input set.
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.
Our primary goal is to create a great, full featured, 3D CAD environment for Blender for use by engineers, designers, drafters, architects, etc. based on the OpenCascade toolkit.
Explicit/Impicit Finite Element Program with linear/nonlinear, elastic/hyperelastic/hypoelastic/plastic/visco, contact,thermal, fluid capabilities. h/p refinements. Parallel/Distributed solvers available. No shell elements but has 2D beams, trusses.
Digital PID Controller Using MSP432
The code in this repository is old and I don't like the sourceforge interface. You can get the code that was running in the video here: https://github.com/arduinoNube/digital-pid-classroom-demo This was a class demonstration I developed for a mechatronics class. Feel free to contact me about getting design files, code, a little help, etc. It demonstrates proportional, integral, and derivative controllers and their features as well as anti-windup and control loop update rate. It uses a DC motor controlled by an h-bridge and an optical quadrature encoder for feedback. It uses timers, counters, and interrupts to generate PWM to control the speed of the motor, encoder pulse counting, and control loop updates.