Pull Compensation
An adjustment a digitizer applies that widens shapes in the stitch file so they hold their intended size after the fabric pulls in from the stitching.
When an embroidery machine stitches a column or shape, the thread pulls the fabric inward toward the centerline of the stitch path. A satin column digitized at exactly 5mm wide will finish at roughly 4.5mm to 4.7mm on most fabrics. The compensation a digitizer applies to counter this effect is called pull compensation.
Pull compensation is typically expressed as an offset added to the edges of each shape. A satin column receives both pull comp (widening) and push comp (the opposite axis, which is the column shortening lengthwise as the fabric distorts). The digitizer sets values per object based on column width, fabric type, and stitch density. Knits and fleece need more compensation than tight wovens.
Getting pull compensation right is what separates clean lettering from blurry, gappy lettering. If a column is digitized at its intended finished width without compensation, the stitched result will show small gaps between adjacent columns and look thin. If the compensation is over-applied, columns overlap and merge into mushy blobs.
Most professional digitizing software has automatic pull compensation algorithms, but they are conservative defaults. Skilled digitizers manually adjust values on a per-shape basis, especially for small lettering, tight spaces between letters, and curved columns where pull behavior is irregular. This is one of the highest-leverage decisions in digitizing and is largely what customers are paying for when they choose hand digitizing over auto-digitizing.
Related Terms
- Digitizing →
- The process of converting flat artwork into a machine-readable stitch file that controls every needle movement of an embroidery machine.
- Satin Stitch →
- A dense, glossy stitch made of long parallel threads, used for borders, columns, and lettering up to about three-quarters of an inch wide.
- Underlay →
- A foundation layer of stitches placed before the visible top stitches, used to stabilize fabric, lift the top thread, and prevent puckering.
- Stitch Density →
- The spacing between stitches in a design, controlling thread coverage, stiffness, and total stitch count.
- Fill Stitch (Tatami) →
- A stitch type that fills large solid areas with rows of short stitches arranged in patterns, used wherever a satin stitch would be too wide.