About this 3D model

A hand operated animated heart Valentine. Video of prototype is here: https://www.youtube.com/watch?v=F6l6FjOTfgU. Designed using Sketchup Make 2015, and printed in PLA on a Makerbot Replicator 2 using Makerware 2.3.3.42 "Standard" Settings (.2mm layer height, 2 shells, 10% infill). Happy Valentines Day (also my birthday)!