Hypercube Tool Changer/Multi Material Parking Extruders

# HyperCube parking extruders

I wanted to experiment with multi material designs for quite a while and after many failures I ended up with this.

I didn't yet quite achieve printing in i.e. multiple colors (I'm working on Slic3r configuration for that) but the main goal is achieved - I wanted to quickly change between an 0.6 and 0.4 nozzle.

I wouldn't say it's my invention as there's a lot of similar things over the Internet and only with the knowledge from there I was able to achieve w