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(1) Explanation of the motion of shirring smoothing function
14-4 Explanation of the shirring smoothing function
The sewing machine is equipped with the smoothing function to control the sudden change of shirring
amount at the time of changeover of the step. The value which is set here is reected to each step of all
pattern data.
Example) When all steps are 4
• Smoothing function set value (Number of stitches) 2 stitches
(Shirring amount) 3
When the shirring amount of step 1 at the start of sewing is changed over to 6, rst, the shirring amount is
changed over to 3.
Next, after the motion of 2 stitches, the shirring amount is changed over to 6 (3+3).
When step 1 is changed to step 2, the shirring amount becomes 9 (6+3) immediately after the changeover
and the shirring amount is changed over to 11 which has been set in step 2 after the motion of 2 stitches.
Hereafter, similarly, the shirring amount changes ± 3 at the time of changeover, further, the shirring
amount changes ± 3 after the motion of 2 stitches, and the function performs the motion until the shirring
amount which has been set in the step is reached.
* When the fully-automatic mode is selected, the shirring amount in terms of the position of changeover
is symmetrically divided in front and rear since the changeover of step is automatically performed.
Motion of shirring smoothing function is explained below.
6 5 7
3 3
23
33
3
3
3333
1
Step 1 Step 2 Step 3 Step 4
2 stitches
Shirring amount
Changeover
Changeover
Changeover
Changeover
Moving amount
2 stitches
2 stitches
2 stitches
2 stitches
2 stitches
2 stitches
2 stitches
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