Bernina 1150MDA Owners Manual - Page 22

Sergers Differential Feed: Fabrics that Stretch Fabric 3 pieces of ribbing, each 5" wide x 2" long Needle 80/12 Universal Thread 4 cones of serger thread yellow, red, green, blue) Presser Foot standard Stitch 4-thread overlock Thread the serger for a 4-thread overlock stitch. Fine tune the tensions for a balanced overlock stitch. Set the cutting width as needed and set the stitch length to 2.5mm. With differential set at N, serge two of the ribbing pieces together along one 5" edge. If the fabric is stretchy enough you will have a wavy edge. Adjust the differential to 2.0. Stitching along the 5" side, serge the remaining ribbing to the other side of the piece, trimming slightly. With differential at a higher setting, the wavy edge should be eliminated. Mark the differential settings on the fabric sample. Compare the seams to see how the differential settings can affect stretching. Trim ancd mount the sample. Return the differential feed setting to N (normal). Mastering Your BERNINA® Notes MASTERING YOUR BERNINA® SERGERS 6/2006 22 ©2006 BERNINA® of America, Inc. Permission to copy and distribute in printed and electronic formats granted only to Authorized BERNINA® Dealers