Aleksander Sadowski is the founder of ALSADO and a passionate advocate for open-source software in mechanical engineering. His mission is to make FreeCAD the default choice for professional 3D CAD. He has developed a complete open-source workflow for product development, collaborating with organizations like the VDI (Association of German Engineers) and the German Space Agency (DLR). He is also the author of the FreeCAD Beginner's Handbook and an inventor of an open-source-designed safety screw.