There are the following tests for the bias sample:
Long segment test
Short segment test
To run the long segment test:
If not already at the FAB user interface, start the FAB, open DB Admin, and click Use FAB. For more information, refer to Using the FAB.
On the list on the left side of the page, click Bias - Long Segment.
At Enter fabric width, type in the sample width. (The default is 5 cm.)
Remove any sample fabric from the machine.
Ensure that the:
Fixed (or stationary) clamp is closed.
Movable clamp is open.
Click Start. The movable clamp moves into place.
Slide the square block between the clamps. The grooved edge should face the movable clamp.
The block has guidelines which you should align with the guidelines on the clamps as shown in the following image.
Position the fabric sample on the FAB according to Positioning Fabric for Long Segment Tests.
Remove the block.
The test is complete when two blue ticks are displayed on the right side of the page.