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ADJUST IN THE SOFTWARE BY SPECIFYING THE RESOLUTION OF THE PRINT.  IT THEN
PROCEEDS TO PRINT ADDITIONAL LAYERS, AS SHOWN IN FIGURE 1, UNTIL THE ENTIRE
OBJECT HAS BEEN PRINTED.  THE ONLY PREREQUISITE FOR A GIVEN LAYER IS THAT
IT HAS SOMETHING TO PRINT ON TOP OF.  MANY PRINTERS CAN HANDLE AN OVERHANG
OF ROUGHLY 45 DEGREES.  ANYTHING MORE REQUIRES SUPPORTS, A SCAFFOLDING LIKE
STRUCTURE THAT IS ADDED TO THE PRINT AUTOMATICALLY AND CAN BE EASILY
REMOVED AFTERWARD.  PREPARING A MODEL  BEFORE YOU CAN DO ANY PRINTING, YOU
MUST OBTAIN A MODEL AND PROCESS IT USING THE PRINTER SOFTWARE.  STL
STEREOLITHOGRAPHY IS THE MOST WIDELY ADOPTED FILE FORMAT FOR 3D PRINTERS.
STL FILES CONTAIN THE SURFACE GEOMETRY FOR YOUR THREE DIMENSIONAL OBJECT.
MOST 3D CAD APPLICATIONS WILL EXPORT YOUR MODEL STRAIGHT TO AN STL FILE,
WHICH CAN BE IMPORTED INTO THE PRINTERS SOFTWARE.  AT THIS POINT YOU CAN
SCALE THE OBJECT, ORIENT IT, AND MOVE IT AROUND THE PRINT BED TO A DESIRED
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