The
Finger-
Tip
Control
When
you depress finger-tip control F
of
the
zigzag
mechanism (Fig.
41
),
you
can
switch the machine from straight
to
zigzag
stitching, the stitch wi
dth
being
about
3
/16H,
or
4.5
mm. The machine resumes. straight stitching
as
soon
as
the lever
is
released.
When
stitch width dial A
is
set
between
1
and
2
and
lever B in notch
1,
you
can
double
the stitch width
by
depressing the finger-tip control. This is
part
icularly important for making buttonholes
and
non-automatic
embroidery
designs.
When
dial A
is
set
at
1.5
for sewing the buttonhole seam, you
can
instantly
double
the stitch (i
ncreasing
it
to
3)
for bartacking
the
end
of
the
buttonhole.
This eliminates a
number
of
movements
that
were
required previously.
When finger-tip control F
is
pushed
up,
rather
than
down, while the machine
is
zigz:ag stitching, it will
be
switched
to
straight stitching instantly,
regard-
less
of
the
stitch
width
set. This
feature
is
important
for
tying
off
a
seam.
Changing
the
Needle
Position
To
change
the position
of
the
needle
in
the
needle
plate
slot, lever B is moved
from
the
center (normal position)
to
the right
or
left,
as
may
be
desired
(Fig.
39).
Note: Dial A serves to
regulate
only the stitch width while the
spacing
between
stitches,
or
the stitch density,
is
regulated
by stitch length
dial
G
(page
13).
Fig.
40
. Stitch width
dial
A Fig.
41
Stitch width finger-tip control F
21
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