SINGER 717 Scholastic - Manual (Page 27)

buttonholes
Stitch Width: 2% and S or to suit fabric
Needie Position: L
Stitch Control:
HUE
(above 20)
Zig-Zag Throat Plate
Zig-Zag Foot or Special Purpose Foott
Always make a test buttonhole on a sample of
your fabric. Be sure to duplicate the thickness
of the garment and Inclube interfacing if ap-
propriate.
SUTTOMHOLE LEUQJH
First decide how long the opening needs to be.
This win depend on the diameter and thickness
of the button. To find the right length, cut a
small slit in a scrap of your fabric and gradually
enlarge it until the button slips through easily.
Ther^ add at least Vs inch (Vu inch for each bar
tack), and mark the fabric as illustrated. This
bar-tack measurement is approximate; on some
buttonholes, you may need to increase it to
arrive at pleasing proportions.
STITCH WIDTH SETTINGS
Next, determine the two stitch width settings
that you will need: one for side stitching and
one for bar tacks (closings at ends of button­
hole). Settings 2 V 2 and 5 are illustrated below,
although other combinations may be used, as
long as the combined width of side stitching
does not exceed the width of the bar tacks.
Marking
Unes
Length of
Cutting Space
Bar Tacks
and
Side
Stitching
Selector
at 2 Va
Selector
at 5
SideSitehing Bar
Tacks
tlhe Special Purpose Foot described on page 43 Is designed to aid in making buttonholes.
25