MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Here's an interesting idea. Replace the resistor with a potentiometer (Basically an adjustable resistor). That way, you can adjust the brightness of the stones, so you can "activate" the stones for using them and snapping.