• Manufacturing Sewing Machines since


Your Stitching has value. With Merrow's Stitch Lab you have the power to ensure that it won't be compromised while being sewn. Our stitch Lab will sew off your material the way you need it with the stitch you want on your customized Merrow Machine. Send us a stitch sample and your material: we'll sew it and have it back to you in 14 days.

Send us your material
We'll work with you to create the stitch that brings you value
We'll hand build a machine to sew on your material
We'll ship your machine sewn off and ready for production
Enter your email address to coordinate shipment of your material to us for FREE.

"With Merrow I created a new stitch for my Outdoor Apparel mid-weight line, it's awesome! We were able to develop the stitch and move into production in less than six weeks. The service is unequalled. "

- Rob Nadler, Ragged Mountain CEO

you're viewing: 70 class technical information


General Information

1) The Upper and Lower Cutter may be adjusted up and down, and laterally to the right or left.

2) The position of Cutters determines the width of the fabric within the seam. When a butt seam is desired, the cutting surfaces should be positioned approximately in the middle of the Needle Plate Chaining Finger. When a gap seam is desired, the cutting surfaces should be positioned as for a butt then moved to the left about 1/2 the width of the gap required. Lap seams are created by setting the cutting surfaces to the right of the butt seam position. The position of the Cutters will vary with the thickness of fabric. Some trial settings should be made to determine the correct position for each weight of material. Loosely woven materials require a wider setting than tight fabrics.

3) The Lower Cutter Holder slides in the Lower Cutter Holder Support Assembly providing lateral movement to the Lower Cutter. Do not allow the Lower Cutter to push too tightly against the Upper Cutter. If more than a light pressure is required, it usually indicates that the Cutters are dull and should be sharpened.