Stitch Length; Cutting Width - Janome 1200D Instruction Book

SL

Stitch Length

The stitch length (SL) may be adjusted depending on
the fabric weight and fiber content. Stitch length may
be set between 0.5 and 5. Set a shorter stitch length
for lightweight or sheer fabrics. Set a longer stitch
length for heavyweight or bulky fabrics.
NOTE:
Always set the SL dial at 2.5 or higher when sewing a
chainstitch or cover hem.
NOTE:
The stitch length readout for the Cover Hem stitches is
3.0. This is the correct setting for two-three layers of
light to medium weight fabric. Stitch length should be
increased to 3.5 or 4 on heavy fabrics or when sewing
over bulky seams while hemming.

Cutting Width

The cutting width may be adjusted depending on the
fabric weight and the number of fabric layers. Fabric
should lie flat inside the overlock stitch without looping
threads or tunneling.
Looping
The cutting width is set narrower than the stitch width.
Move the lower knife to the right by turning the cutting
width dial up (clockwise).
Tunneling
The cutting width is set wider than the stitch width.
Move the lower knife to the left by turning the cutting
width dial down (counterclockwise).
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