Baby Lock Lauren (BL450A) Instruction and Reference Guide - Manual (Page 22)

20
FLATLOCK SEAM
Using the blind hem presser foot and disengaging the upper blade, you can sew decorative top stitching “Flatlock
Seam” as shown on the sketch.
setting controls
Set the machine controls as below.
Flatlock Seam (Correct thread tension)
Needle
Presser Foot
Right
Blind Hem
Stitch Length
2-3
Upper Blade
Disengage
Needle Plate
Standard
thread tension
Normal
Needle Thread
(Right) Upper Looper
Thread Lower Looper
Thread
Set tension dials for normal 3-thread overcasting.
Test Sample
Lower
Looper
Thread
Upper
Looper
Thread
Needle
Thread
1. First sew test sample for
adjusting the thread
tensions.
2. Fold fabric with wrong sides
together.
3. Adjust the plastic guide on
blind hem foot so that the
stitches just overcast the folded edge.
4. Adjust the thread tensions until the needle thread comes to folded
edge and the lower looper thread formes nearly a straight line on
the edge.
sewing
1. Fold fabric with wrong sides together.
2. Adjust the plastic guide so that the stitches hang
halfway over the folded edge.
3. Lower the presser foot and sew.
4. When stitching is completed, pull fabric flat and
press the stitches from the wrong side of fabric.
Decrease Increase