Settings: MakerWare .3mm/low in almost no time at all.
Technical notes: Our goal here was to make something very light and easy to print quickly in large quantities, to make classroom use easier. However this particular choice of settings was not good for larger models with more sides. Some tinkering and possibly a redesign is still necessary to find a way to print very thin Poly-Snaps that actually stay snapped together. But for the record, here were the Customizer settings we used for this model:
Sides = 3
Snaps = 3
Side Length = 25
Thickness = 1
Border = 5
Clearance = 0
Lengthen = 1.0