With this variation, the file can be printed without material support.
Maaan, I hate material support!
Check original one for more items: http://www.thingiverse.com/thing:40611
So here we go.
Also I modified it to have another kind of corner, this one with every part laying on the ground, I mean, all the parts you insert on this corner would be at same level... Not printed yet, but some photos will come