I know we ain’t quite there yet, but my current “dream” printer would use quadruple extrusion (perhaps with blending like the recent extruder experiments :ie http://reprappro.com/Special_Blog?cmd=post&id=12)
- normal (hard)
- elastic (soft)
- support (pva)
- conductive (carbomorph)
Anybody using at least dual extrusion (pva + pla/abs) on a regular basis ?