Singer 20U - Buttonholes

BUTTONHOLES
Needle Position Selector: Left
Stitch Width Regualtor: 2mm and 4mm or
21/£mm and 5mm
Stitch Length: Satin Stitch
Throat Plate: General Purpose
Presser Foot: Buttonhole Foot
Marking
Line
Buttonhole Foot
For buttonholes, use a satin stitch as
described on page 18. You will need two
stitch width settings, one for side stitching and one for the bar tacks.
Two practical combinations are shown in sketch at right.
Always make a test buttonhole on a sample of your fabric. Be
sure' to duplicate the thickness of the garment and include
interfacing if appropriate.
First, decide how long the opening needs to be. This will depend
on the diameter and the thickness of the button. Add at least 1/8
inch (1/16 inch for each bar tack}, and mark buttonhole length on
fabric. This bar-tack measurement is approximate; on some button-
holes, you may need to increase it to arrive at pleasing proportions.
Preparation: Set needle position selector at LEFT and stitch width
regulator for side stitch width (2mm or 2^mm) and bar tack width
(4mm or 5mm) as explained in page 14.
Length of
Cutting
Space