As I'm making my own 3D printer, I had to draw my E3D V6 direct extruder for 1.75mm filament, and here it is.
E3DV6 parts - HEATBRICK-1.STL
E3DV6 parts - HEATERBLOCK-1.STL
E3DV6 parts - HEATSINK-1.STL
E3DV6 parts - NOZZLE 0.4-1.STL