Z18 Companion Cube Gift box

This is a print from chefmaki, Companion Cube Gift box.
http://www.thingiverse.com/thing:37776

I followed the comment by CuriousG, and printed on a Z18.
standard 10% infill, raft and support.

The 4 walls aren't perfectly aligned, so someone with more time can fix it for the rest of the community.