The Ultrafeed has a needle bar stroke of 1-11/32″ (34mm), twice that of some home sewing machines, and 3/8″ clearance between the raised walking foot and the needle plate, also twice that of a home machine, and can sew almost anything that fits in that space. It can sew multiple layers of heavyweight fabric, leather, or canvas, which is essential when stitching corners where fabric gets folded for overlapping seams or reinforcing layers are added in places such as the corners of sails. We’ve tested the Ultrafeed on 16 layers of canvas, as much as we could fit under the presser foot, and had no trouble sewing it.
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