Bernette Airlock b64 - Sewing Corners and Curves

Practical overlocking
74
2020-09 EN 5040064.00A.04
9.5 Sew outer corners
A neat corner can be achieved by the following two methods.
Method 1
> Set the machine for a 2-, 3- or 4-thread overlock.
> Sew along the edge of the fabric beyond the corner.
> Start a new edge and sew over the previously sewn edge.
> Secure the thread chain. (see page71)
Method 2
> Trim the seam allowance for the Cutting Width of the following corner in the sewing direction (presser
foot length).
1
2
3
> First sew the edge up to the cut corner.
> Sew one stitch beyond the fabric edge and stop.
– The needles are in the top position.
> Raise the presser foot.
> Move the Rolled Hem Selection Lever to position «R».
– The thread loops are loosened from the Stitch Finger.
> Turn the fabric counterclockwise.
– The trimmed edge of the fabric is in the sewing direction under the presser foot.
> Switch the Rolled Hem Selection Lever to «O».
> Pierce the needle into the fabric.
> Pull back and tighten loose threads of the thread spools on the Thread Stand.