Extrusor Dual 20*20

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:1580003.

Doble Extrusor Independiente Basado en: http://www.thingiverse.com/thing:115885 http://www.thingiverse.com/thing:245977 http://www.thingiverse.com/thing:1037870 http://www.thingiverse.com/thing:1325347 http://www.thingiverse.com/thing:45243 http://www.thingiverse.com/thing:1052288 http://www.thingiverse.com/thing:761806