Baby Lock Diana (BL480A) Instruction and Reference Guide - Manual (Page 32)

31
Differential feed is a system which "stretches" or “gathers" the
fabric, when the amount of feed of front feed dogs in relation to
the rear feed dogs is changed.
The differential feed ratio ranges from 1:0.6~1:2.0. Adjustment is
made by means of the differential feed adjusting dial pictured at
right.
Use of differential feed is very effective in overedging stretch
fabrics and fabrics cut on the bias.
Setting "N" is differential feed adjusting dial setting for ratio 1:1.
Gathered overedge is most suited for shirring sleeves, yokes,
front and back bodices, skirt hems, etc. in stretch fabrics such as
knits and jersey before assembling into garment.
Set differential feed adjusting dial above setting "N". Setting of
adjusting dial depends on material being sewn as well as the
amount of desired gather. Lightweight fabrics will gather more
than heavier fabrics. Therefore set dial to suit the fabric and test
sew before sewing your garment.
Note: For normal overedge stitching, set differential feed adjusting
dial to "N".
18. DIFFERENTIAL FEED
Gathered Overedge
To set the differential feed adjusting dial for gathering
1.5
N
1.5
N
0.8
0.6
N
1.5
2.0
N
0.8
0.6
2.0
1.5