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2-4-13. How to correct the pattern position (Position correction function)
1) Correction unit for the correction of pattern position
The correction value can be set on the device-by-device, pattern-by-pattern or unit-by-unit basis
according to the cause for correction.
The position correction function can be acquired the correction value by teaching the reference position
of the object causing when the pattern data and the material are shifted due to the error of the presser
foot and the unit in use.
Correction unit
Specification of reference position
Storage of correction values
In the unit of device
Arbitrary coordinate
Device parameter
In the unit of pattern
Arbitrary coordinate of vector data
User pattern
Unit of cycle step
Arbitrary coordinate of vector data
Cycle sewing data
2) Relation between the number of reference positions and the correction logic
The reference position can be set to one or more arbitrary coordinate(s).
The object of correction procedure differs according to the set number of reference positions.
Correction
procedure
Description
Number of
reference positions
Correction of position
The entire position of pattern is moved in parallel by the correction
amount.
One or more
Correction of
inclination
Inclination of the coordinate system is corrected
Two or more
Correction of pitch
Scale in X and Y directions are respectively corrected
Two or more
