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Albert Einstein He developed the general theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).


The first integrated circuit invented by the engeneer Jack S. Kilby1 (1923-2005) contained only a few transistors. Texas Instruments.
blender software
Blender
Blender is a professional free and open-source 3D computer graphics software product used for creating animated films, visual effects, art, 3D printed models, interactive 3D applications and video games.
blender software
NetFab
Netfabb is a commercial software program, mostly used to repair STL files before trying to use them with your preferred slicer (Slic3r,Cura,etc).
blender software
Repetier
The Repetier-Host is a simple to use host software, which is be compatible with most firmwares around. You can add and position your STL files on the simulated printbed and slice them all together. For slicing you can use the built-in Slic3r slicer or use the well-known Skeinforge. Just call "Slice & Load" and the job gets delegated to the current slicer, showing its output in the log window.
blender software
Slic3r
Slic3r' is free software 3D slicing engine for 3D printers. It generates G-code from 3D CAD files (STL or OBJ). Once finished, an appropriate G-code file for the production of the 3D modeled part or object is sent to the 3D printer for the manufacturing of a physical object. As of 2013, about half of the 3D printers tested by Make Magazine supported slic3r.
blender software
FlatCam
FlatCAM is a program for preparing CNC jobs for making PCBs on a CNC router. Among other things, it can take a Gerber file generated by your favorite PCB CAD program, and create G-Code for Isolation routing. But there’s more. See the features list below.