Baby Lock Imagine Wave (Previous Model) (BLE3ATW) Instruction and Reference Guide - Manual (Page 28)

Sew 2-thread flatlock seams in the same way as 3-thread flatlock
seams, then pull the two fabric layers apart until the seam lies flat
(fig. A). Because the threads show on the outside as well as the
inside of the garment or project, the 2-thread flatlock seam is often
considered a decorative application (fig. B). Be sure to sew a test
sample first to determine whether the stitch will have the strength
to hold the seam without the fabric pulling away.
For 2-thread flatlock - wide
1. Lock the machine.
2. Place the needle thread on far left spool pin.
3. Thread needle thread through the upper looper thread guide on
top of the machine, then go down the thread path in the front of
the machine. Go left with the needle thread at the hook on front
of the machine. Then take the needle thread through the normal
needle thread paths. (See illustration below).
4. Engage the subsidiary looper following step 3 on page 25.
5. Thread the lower looper as shown in the illustration below.
If you want the "overlock stitching" to show on the right side of the
fabric, place wrong sides together and sew. (Fig. C)
2
T
H
R
E
A
D
O
V
E
R
L
O
C
K
26
2-Thread Flatlock - Wide
B
A
C
Loop
Wrong Side
Needle
Thread
Right
Side
Looper
Thread
Right
Side
Wrong Side
A
B
C
D
B
C
D
O
O
A
NEEDLES
left
LENGTH
2-2.5
WIDTH
7.5
STITCH
SELECTOR
A
WAVE
SELECTOR
O