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While digitizing borer holes for multihead or Schiffli is essentially the same, there are differences which may affect digitizing technique...
Multihead machines do not have borer depth adjustment, so the borer cut is always the same size.
The multihead borer needle pushes the fabric against the base-plate which forms a small frame. This means the fabric is easily cut. In the Schiffli machine, the fabric is not backed by anything which means there is a little play back-and-forth. So the cut may not be as large as the borer knife diameter at any given depth.
Traditional Schiffli CAMS are set in such way that every borer cut moves in and out twice.
Mechanical Schiffli machines have no trimmers. Therefore the thread remains connected to the last stitch during the boring phase. Thus the last stitch always has to be in the ‘12 o’clock’ position. This is where stitching must resume. By contrast, on multihead machines, the thread is always trimmed before boring commences.
On mechanical Schiffli machines, there are certain low-level machine functions that must be performed – Slow, Needles Out, Lower Frame, Borers In, Fast. And after boring – Slow, Borers Out, Lift Frame, Needles In, Fast. The software inserts these functions automatically.
Note: The ES Schiffli borer operation includes full support for various machines, including borer depth control and the automatic creation of the appropriate machine control sequence (fast/slow, needles in/out, etc). These functions are also supported with digitizing tablet functionality so that users with traditional enlargement drawings also can utilize them.
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