Day 51 - Tiny frame #1

A friend of mine likes to glue together picture frame corners to make very tiny frames for very tiny pictures.  I have a couple for my bathroom but wanted to make some more.  Here's one with a 20mm-sided cube area in the center for displaying a very small model or object (in this case a Settlers of Catan settlement piece).

STL file: http://www.geekhaus.com/makerhome/day51_tinyframe1.stl
Tinkercad link: https://tinkercad.com/things/bPPjXZLjQ7O-day-51-tiny-frame-1
Thingiverse link: http://www.thingiverse.com/thing:167009

Settings:  MakerWare "standard" with no raft or supports, in 1 hour and 26 minutes.

Technical notes: I put a nail recess in the back but the frame and its contents are so light that it holds up very easily with blue poster gum, no nails required.