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Buttonhole foot No. 3A
Automatic round and keyhole buttonhole
Programming buttonholes
1
⦁
sew straight stitches forward
⦁
stop the sewing computer
⦁
press «Quick reverse»-button
►
«auto» and the programmed length (in mm) appears in the Display
►
the buttonhole length is programmed
The sewing computer sews the following automatically:
2 the eye
3 the first bead in reverse
4 the straight stitches forward
5 the second bead in reverse
6 the bartack and securing stitches
►
the sewing computer stops and returns automatically to buttonhole
begin
Auto buttonhole
►
all subsequent buttonholes will be sewn to exactly the same length
(no need to press the «Quick reverse»-button)
⦁
the programmed buttonholes can be saved in the long-term memory
(see page 103)
⦁
press «clr»-button
►
the programmed settings are cleared
Exact duplication
The auto function ensures that each buttonhole will be exactly the
same length as the previous one.
Double sewn keyhole buttonholes
keyhole buttonholes can be sewn twice on thick fabrics - use a
longer stitch length for the first run
after sewing the first buttonhole, do not move the work
reduce the stitch length manually and sew the buttonhole again
The slide foot must lie perfectly flat on the fabric! If the slide foot
rests on a seam allowance, the length cannot be measured
accurately.
Automatic Round and Keyhole buttonhole No. 54-58, 68
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