I'm a complete CAD nerd. That is to say, I know my way around software - I should as a programmer (it seems) - but CAD is new to me.   I've been looking for programs - preferably free, yes I'm Dutch - which could be used by a layman.   So far I've tried DELFTship, and autoCAD. DELFTship is cumbersome, and unfortunately autoCAD is rather expensive for what it will be used.   Today I found another program: Draftsight. It's free, 2D and 3D, uses DXF files, runs on Windows/Linux/MAC. So I'll t