4-Thread Overlock; 4-Thread Overedging; Overlock Seam - Baby Lock Celebrate BLS1 Instruction And Reference Manual

4-Thread Overedging

Overedging to finish facings, hems and seams before construction, is one of the most basic uses
of a serger, such as making a garment or project with 5/8-inch (16mm) pressed-open seams.
(fig. A)
To overedge, place the single layer of fabric in front of the presser foot, aligning the cut edge with
upper cutting blade. Begin serging, continuing to guide the fabric along the blade. The edge of
the fabric should be trimmed, but not cut away. Then sew the seams on your conventional sewing
machine and press them open as usual. (fig. B)
Because notches would be cut away in this process, mark them before serging with "V" snips just
inside the seam allowance or with a water-soluble fabric marker. (fig. C)
Note: A 2-thread overlock or 3-thread overlock can also be used with this technique.
Overlock Seaming
For garments or projects that do not require conventional
pressed-open seams, you can stitch and finish the seam in one
operation and then press the seams to one side. (fig. A) A 4 or
3-thread seam is strong, yet it provides "give" or flexibility
according to the needs of the fabric.
Place two layers of fabric right sides together. Use the marks
on your serger's front cover to align the fabric for the desired
seam width. Keep your eye on the fabric edge to guide it to the
appropriate mark. (fig. B)
Do not watch the needle. If you guide the fabric accurately, the
needle will seam in the correct place automatically.
Note: For most seaming, pins are unnecessary because the
serger feeds the fabric evenly. If you need pins, place the pins
parallel to the seam line outside the seam allowance to avoid
damaging the blades.
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B
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