3D puff: 3D puff embroidery is another way of sewing, which involves use of foam under the threads. Sewing is normally done on the edge of the form, leaving the middle part of the form having the effect of being elevated.
Scaling: Ability within one design program to enlarge or reduce a design. In expanded format, most scaling is limited to 10 percent to 20 percent because the stitch count remains constant despite final design size. In condensed or outline formats, on the other hand, scale changes may be more dramatic because stitch count and density may be varied.