Automatic round and keyhole buttonhole
2
Buttonhole foot No. 3A
Automatic round and keyhole buttonhole No. 54, 56, 57
Programming buttonholes
1
1
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
3
4
5
6
6 the bartack and securing stitches
Auto-buttonhole
►
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033527.53.04_2014-07_Manual_B580_EN
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.
sew straight stitches forward
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stop the sewing computer
█
press «Quick reverse»-button
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►
«auto» and the programmed length (in mm) appears in the Display
►
the buttonhole length is programmed
►
the sewing computer stops and returns automatically to buttonhole
begin
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 83)
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
Buttonholes
81