THREE STEP ZIG-ZAG
The three step
The illustration shows patching, where the stitches are to the edge of the patch and a tear, where the stitches go firstly over the centre of the tear and then to either side but overlapping slighly on the first row.
The stitch length can be reduced until the stitches are very close together. This
will give a stronger finish for most repairing operations.
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