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DipTrace Free
DipTrace is an advanced PCB design software application that consists of 4 modules: PCB Layout with efficient auto-router, Schematic Capture, Component and Pattern Editors that allow you to design your own component libraries. Besides being very easy-to-use, this software possesses a very intuitive user interface and many innovative features. Output formats are DXF, Gerber, N/C Drill and G-code.
Blender is the first and only fully integrated 3D graphics creation suite allowing modeling, animation, rendering, post-production, realtime interactive 3D and game creation and playback with cross-platform compatibility - all in one tidy, easily
This 3D graphics editing tool can be easily used for molecule creation. Falco Molecule is a 3D graphics editor for molecule creating. You can use this OpenGL editor in order to generate chemical molecules
progeCAD Smart! is free forpersonal use. DWG DXF PDF read write. Similar icons, commands and interface. Raster image embedding, IntelliCAD AutoLISP interpreter
progeCAD offers AutoCAD functionality for minimal cost. Edit DWG files from most any version of AutoCAD. Similar icons, commands and interface. Raster image embedding, IntelliCAD AutoLISP interpreter.
Drafting software works like AutoCAD but affordable. Read edit view and convert DWG DWF etc. Similar icons, commands and interface. Raster image and vector conversion. DWF publishing, IntelliCAD AutoLISP interpreter, ACIS 3D Solids modelling.