Bernina Bernette Rome 8 Instruction Manual page 41

40 Basic Sewing Procedures
Raise the presser foot and cut thread.
To sew over same buttonhole, raise the
presser foot (will return to original position).
After sewing the buttonhole stitch, raise the
buttonhole lever until it stops.
Cut the center of the buttonhole being
careful not to cut any stitches on either side.
Use a pin as a stopper at the bar tack so you
do not cut too much.
Making a buttonhole on stretch fabrics
When sewing buttonholes on stretch fabric,
hook heavy thread or cord under the button-
hole foot.
Attach the buttonhole foot and hook the
gimp thread onto the back of the presser
foot.
Bring the two gimp thread ends to the front
of the foot and insert them into the grooves,
then temporarily tie them there. Lower the
presser foot and start sewing.
Set the stitch width to match the diameter of
the gimp thread.
Once sewing is completed, pull the gimp
thread gently to remove any slack, then trim
off any excess.
Please Note:
It is suggested that you use interfacing on
the backside of the fabric.