Understanding Differential Feed - Bernina Overlocker L 890 Workbook

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My BERNINA

UNDERSTANDING DIFFERENTIAL FEED

Differential feed is a feature found on most overlockers today, but it takes some understanding to fully comprehend the

benefits for your sewing. Did you realize that your overlocker has two sets of feed dogs that move the fabric through the

machine? This gives you a mechanical advantage for controlling the fabric and when you adjust differential feed, you are in

fact adjusting the rate at which the front feed dog moves.

Look at the diagram and the Differential Feed Dial and settings together. When the differential feed is set at 2, the front feed

dog is moving at twice the rate of the back feed dog. This can compensate for fabrics that want to stretch out or "wave"

while stitching, or create a gathering effect on other fabrics.

Back Feed

Front Feed

Dog

B E R N I N A O V E R L O C K E R W O R K B O O K

Setting

Effect

Gathering or Stretching Compensation

1.5

Light Gathering

Neutral, no effect (Standard)

0.7

Stretching

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