Ikea Lack Shelf Hook 2

A slightly different design from the first, not printed this one yet but it should be fine in PLA, 200 microns and 15-20% infill.

Added a half sized version for smaller items.

**Check my 1st version of this out here** http://www.thingiverse.com/thing:1129058

The lack shelf is 50mm thick as standard, I made this dimension on the bracket 50.5mm to allow for any tolerance issues.