With the current grid provided, the camera has to be relatively far from the surface.  Is it possible to have a scaled version to work with smaller parts and be closer to the surface to accommodate?  Would this be limited by the locations the arm moves to while taking pictures and building the calibration model and part model?

@bsawlor you actually do not need to have the same robot position for the Snapshot position and for the calibration. You can position the camera close to the work plane - as close as 70 mm - and move it further away when you get to the calibration step of the Snapshot position wizard. The Snapshot position used at runtime will still be that closer position you taught for small parts. Make sure you use the right board for your robot  ;) .

@bsawlor there is also a thread on that topic: http://dof.robotiq.com/discussion/333/snapshot-position-for-small-objects