From Hackerspace Brussels
Printing yet another octopus gets a bit boring after a while. Let's dive deeper into 3D printing and printers.
 Dual extruder
Having 2 extruders has some benefits.
- Print with 2 different materials, interesting when printing support material in PVA for example.
- Print with different colors
- Print 2 pieces at the same time. (Called parallel printing)
Some interesting links:
 Add a fan
 Make our own filament
Where to get raw plastic pellets: