5. OPERATION | |
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The cutter operating pattern can be selected from the following four patterns.
Parameter No. 44
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Operates when the front | Operates | near the | front | Operates | immediately | Operates | twice: | |
tack of the last buttonhole | tack when | sewing | is | before the left zigzag stitch | immediately before the left | |||
cycle is sewn. | finished | and | material is | of the last cycle is sewn. | zigzag stitch of the last | |||
| feeding. |
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| cycle is sewn and when | |
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| the front tack of the last | |
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| cycle is sewn. |
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3935Q |
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| 3936Q |
| 3937Q |
| 3938Q | |
General sewing
Setting range 1:Because the needle and knife positions are separated by 2.2 mm as shown in the illustration, the distance between the edge of the front tack and the edge of the buttonhole cannot be set to less than 2.2 mm.
For example, if the knife Y space (A) is set to 0.5 mm, the front tack length (B) will not go below 1.7 mm. At such times, the front tack length can be set to less than 1.7 mm when using cutting after sewing.
Once sewing is finished and material feeding has finished, the cutter will operate.
| Feeding |
2.2 mm | 3939Q |
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•Does not operate during the first sewing cycle. Only applies to second and subsequent cycles (during underlay sewing and overlap sewing).
This is used in cases such as when the rough edges of the material after cutting are hemmed by the buttonhole stitches.
The cutter operates before the left zigzag stitch of the last cycle is sewn.
Setting range 3:• Does not operate during the first sewing cycle. Only applies to second and subsequent cycles (during underlay sewing and overlap sewing).
This is used in cases such as when the rough edges of the material after cutting are hemmed by the buttonhole stitches.
It can also be used if the rough edges of the material block the buttonhole after the left and right zigzag stitches have been sewn.
•The cutter operates immediately before the left zigzag stitch of the last cycle is sewn, and it operates again when the front tack of the last cycle is sewn.
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