The easiest way to check tensions is to
sew a medium zigzag stitch on the fabric
you will be using.
Use the appropriate type of thread and
needle. Use different colors of thread on
the bobbin and upper spool.
Sew a line of medium zig-zag stitches.
The bobbin thread should not show on
the top of the fabric.
Adjust the top tension if necessary to
achieve the stitch formation mentioned
above.
This tension control is very sensitive.
You may want to reduce the tension
towards 0 when sewing wide stitches on
soft fabric_ This reduction of tension
will tend to eliminate puckering of soft
fabrics,
UNDESIRABLE DESIRABLE
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TOP SIDE OF FABRIC
Fig
Fig 2
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V
OV E RCAST[_t",_G
This is one of the more frequently used
zigzag stitches in garment construction.
You may want to overcast along the raw
edge of each seam allowance or fold the
raw edge toward the garment and stitch.
Fig, ! shows the raw edge finished.
Fig. 2 illustrates the folded edge stitched,
Stitch so the needle pierces the fabric just
short of the outside edge. Raw or worn
edges of older garments can be overcast
to prevent further raveling.
INTERFACING DARTS
To reduce bulk of interfacing darts, cut
interfacing down center between dart
lines. Overlap cut edges, matching dart
lines,. Zigzag stitch along marking line
from point to wide end of dart° Trim
both raw edges close to stitching.
21
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