SKR-V1.3, Ramps 1.4 and Rumba Enclosures for V-slot

The original is great, but I wanted more room for playing and better accessibility for changes.
The original is 120x80mm and 60mm high.
Much of it is just an imitation of the original box by spauda01, why spoil a good thing. ;-)
For accessibility I introduced some cable slots with different sized slides.

Update (9-13-17):
I replaced the boxes with cable slots with much leaner ones: 37% less filament needed.
New measurements: 130x115x99mm and 130x115x77mm.
They are as sturdy as before ar