Pfaff Tiptronic 2020 Owner's Manual - Page 17
stretching
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• • e The IDF system Integrated Dual Feed (top feed) model tiptronic 2020 For sewing difficult materials PFAFF provides the ideal solution: the Integrated Dual Feed, IDF system. As on industrial machines, the IDF feeds the fabric from the top and bottom at the same time. The material is fed precisely. On light or difficult fabrics such as silk or rayon the dual fabric feed prevents puckering of the seam. The even feeding action also ensures perfect matching of checked and striped fabrics. The IDF keeps all layers of quilt projects aligned to prevent stretching of the top layers. Engaging the IDF ltiptronic 2020) Important: For all work with the Dual Feed (IDF), use the sewing feet with the center back cut-out. Raise the sewing foot. Press the top feed (14) downwards until it engages. Switch oft top feed/IDF Hold the Dual Feed with two fingers at the marked points. Press the top feed (14) downwards a little, then pull it away from you and release the IDF slowly upwards (see also figure on page 28). Stripes and plaids match perfectly due to the even feed of the material to be sewn. 28 29