SURFdriver Quick Start - Page 5 You should now be at the Y image where the two circles become one circle. At this point, contour the remaining circle just contour #1. SURFdriver will automatically connect the two circles from the previous slice into this one remaining contour. You might be wondering how SURFdriver knows that you want the two objects to combine into one. The answer lies in the use of the caps. If you had wanted the right circle to end, and the left one to continue, what you would have had to do is mark the cap in contour #2 of the previous slice with a bottom cap . This would have told SURFdriver that you were at the end of this section, and that it should put a cap on that contour. Since you did not put a bottom cap on the second contour, SURFdriver knows that you want the contour to keep going, and therefore joins it to the first contour. If this seems confusing, you can probably ignore it for now. It shouldn't affect you until you try to create complicated objects later on, and by then the concept of caps will probably make more sense to you. Continue contouring the single circle in the remaining slices, until you reach Slice #20 (the last slice of the Y object). If you went beyond the last slice, just click the left arrow to return to it. At this point, you are at the bottom of the object. You now want to tell SURFdriver that this is the bottom, so click on the bottom cap button above the first contour number. You have just finished your first object! Choose a color from the Color Palette, shown on the left, then click on the DONE button. You will be asked what you want to do with the file - choose Save, and give the file a name. Then choose Surface from the next dialog box, and SURFdriver will begin create your object. You can choose No for Skew Correction and the default setting for the Stringency; these options are explained in the manual. When SURFdriver has completed your object, you will be put back into the viewing environment