We printed ZortraX’s Zortrax Buckle from Thingiverse for the sole purpose of hearing that satisfying *snap* that these types of buckles make. Can the snap be 3D-printed? Yes it can! This buckle works perfectly and makes a lovely snap. The buckle then unsnaps very nicely and seems to be holding up very well under repeated use. This is a great design!
Thingiverse link: http://www.thingiverse.com/make:89372
Settings: We printed this on a Replicator 2 with .15mm layer height, since that most closely matched the instructions for the model. To get .15mm layer height we printed on .1mm/High setting and then bumped up the layer height to .15mm.