JaxoDraw: Feynman Diagrams made easy!
A suite of RPN calculators and a class library for Object Pascal
An Ada 2012 binding to the FFTW fast Fourier transform library
A scientific plotting library for C/Fortran built on cairo
CAD 2D for Land Surveying and Civil
Python Gerber to G-code converter
A graphical Finite State Machine (FSM) designer.
Create G Code from a Picture of the PCI.
http://dx.doi.org/10.1002/jcc.22968
GCode sender for ramps and marlin firmware for CNC Milling Machine
CAD 2D for Land Surveying,Civil and more
Convert drl files to g code