About this 3D model

Update 1: Uploaded new "Head.stl". Fits better with less gap. JPG shows new head in blue. Video still prototype. Original: Mr. Jaws in motion. Animated by either hand or motor, Mr. Jaws opens and snaps shut his jaws. Mr. Jaws design is based on the original Mr. Jaws by Mahoney. Original Mr. Jaws was imported into Sketchup 8, then modified for animation. The remaining parts were designed using Sketchup 8. All parts were printed via MakerWare (using "Standard" settings) on a Replicator 2 using PLA. Video of prototype motor driven Mr. Jaws In Motion on YouTube is here:http://www.youtube.com/watch?v=N6XXieWPdBk Video of final design motor driven Mr. Jaws in Motion on YouTube is here: http://www.youtube.com/watch?v=213oSw4P-MQ