Seam and Program¶
- Seam
A seam, usually is divided into three parts: start backtack, middle sewing, end backtack and thread trimming.
A seam starts from pedal forward for the first time, and ends when pedal full heelback(position -2), i.e. thread trimming marks the end.
Free seam
Stitch Counting seam
W seam
- Program
A sewing program, contains at least one seam. Let’s call it Seam-01 , Seam-02 … Seam-n , program controls them sewing automatically, when Seam-n is finished, program end. After that, you can restart the loop.
Program with Free seam¶
Program with Free seam is a special sewing program, it has only one seam section, and there is no needle limit in the middle section.
Program with Stitch counting seam¶
Program with Stitch counting seam is a sewing program that contains up to 25 stitch counting seams, each section can be programmed with a maximum of 99 stitches.
The functions of the sewing program are divided into two areas: the global functions related to the sewing program and the local functions related to the seam section.
Global functions
Soft start
Local functions
Number of stitches
Start/End backtack
Thread clamp
Thread trimmer
Needle position when sewing stops
Automatic sewing foot lift when sewing stops
Automatic sewing foot lift after thread trim(seam end)
The seam section with zero stitches in the middle section is considered as the end of the program. When the program reaches such a seam, it returns to the first section.
After any seam section ends, if you press the pedal full heelback(position -2), the whole program will be ended. If the thread trimming has not been executed at this time, the thread trimming will be executed and return to the first section, otherwise program will be directly returned to the first section.
Program with W seam¶
Program with W seam is a special sewing program, it has only one seam section, and there is no start/end backtack, the program will automatic complete when step the pedal forward.
The total number of sections is defined as E, range 1~15. The number of stitches in the first section is defined as A, the second section is defined as B, the third section is defined as C, and the remaining sections is D.
When the program is finished, the pedal must be step back to position 0(neutral) and then be step forward to start the next sewing.
Correction(Needle up/down)¶
If A03 is equal to 0:
When press the key, the needle moves form the current position to the position set by
parameter D15 or D16, which one is the closest, the target position
is that one.
E.g, current position is 40°, D15 is 70°, D16 is 200°, when you
press the button, the motion trace is Position 40° => 70° => 200° => 70° => 200° ...
.
If A03 is equal to 1:
when you press the button, two cases: if you set stop at upper position, the needle
moves form the current position to the position set by parameter D01. if you
set stop at lower position, the needle moves form the current position to the position
set by parameter D02:
E.g, current position is 40°, D01 is 70°, D02 is 200°, if
A01 is 0, when you press the button, the motion trace is Position 40° =>
200° => 200° => 200° ... ; if A01 is 1, when you press the button, the
motion trace is Position 40° => 70° => 70° => 70° ... .
Quick reference¶
This table summarizes which parameter should be used for seam:
Parameter |
Authority |
See also |
|---|---|---|
Free Seam Speed |
Operator |
|
W-Seam Speed |
Operator |
|
Stitch Counting Seam Speed |
Operator |
|
Needle Position when sewing stop |
Operator |
|
Auto Run for Stitch Counting Seam |
Operator |
|
Correction: Half or Full stitch |
Operator |
|
Block the Quick Keys |
Developer |
|
Auto Mode After Start Backtack (Stitch Counting) |
Operator |
|
Auto seam end (Stitch counting) |
Operator |
|
Correction Mode |
Operator |
|
Manual Reverse with Stop |
Operator |
|
Upper Needle Position |
Technician |
|
Lower Needle Position |
Technician |
|
Lower Limit of Manual Revserse SW. Working angle range |
Operator |
|
Upper Limit of Manual Revserse SW. Working angle range |
Operator |
|
Correction: Upper Position |
Operator |
|
Correction: Lower Position |
Operator |
|
Sewing mode |
Operator |
|
Correction Timming |
Operator |
Parameter List¶
- S01¶
- -Max
4500
- -Min
50
- -Unit
spm
- -Description
Maximum sewing speed in Free Seam mode.
- S05¶
- -Max
4500
- -Min
50
- -Unit
spm
- -Description
Maximum sewing speed in W-Sewing mode.
- S06¶
- -Max
4500
- -Min
50
- -Unit
spm
- -Description
Maximum speed in Stitch Counting Seam mode.
- A01¶
- -Max
1
- -Min
0
- -Unit
–
- -Description
- Needle position when sewing stop:0 = Down position, in the material;1 = Up position.
- A02¶
- -Max
1
- -Min
0
- -Unit
–
- -Description
- Middle section can be interrupted for stitch counting seam:0 = The middle speed of the sewing is controlled by the pedal;1 = The sewing is performed automatically.
- A03¶
- -Max
1
- -Min
0
- -Unit
–
- -Description
- Stop position of correction:0 = Half stitch, alternating between Up and Down position;1 = Full stitch, Motor runs one complete stitch cycle.
- A07¶
- -Max
1
- -Min
0
- -Unit
–
- -Description
- Whether to block the Quick Keys on the machine head when the fabric is too thick, to prevent accidental key presses. The units digit of the parameter value indicates the blocking status:0 = Unblock;1 = Block.
- A16¶
- -Max
1
- -Min
0
- -Unit
–
- -Description
- Machine behavior after start backtack in a stitch counting seam:0 = Stop and wait for pedal;1 = Continue automatically.
- A17¶
- -Max
1
- -Min
0
- -Unit
–
- -Description
- How to initiate the seam end when the middle section is complete in a stitch counting seam:0 = Stop and wait for pedal;1 = Continue automatically.
- A30¶
- -Max
1
- -Min
0
- -Unit
–
- -Description
- Correction mode:0 = Press the button to correction once;1 = Correction and continue until the button is released.
- A31¶
- -Max
1
- -Min
0
- -Unit
–
- -Description
- Manual Reverse with Stop:0 = Normal;1 = Machine stops to switch to reverse when the button is pressed, then resumes automatically.
- D01¶
- -Max
359
- -Min
0
- -Unit
1°
- -Description
Holding position of the needle outside of the material.
- D02¶
- -Max
359
- -Min
0
- -Unit
1°
- -Description
Lower needle position at a sewing stop during the seam.
- D11¶
- -Max
359
- -Min
0
- -Unit
1°
- -Description
If the needle position is less than this angle, the manual reverse sewing button isn’t working.
- D12¶
- -Max
359
- -Min
0
- -Unit
1°
- -Description
If the needle position is greater than this angle, the manual reverse sewing button isn’t working.
- D15¶
- -Max
359
- -Min
0
- -Unit
1°
- -Description
Upper needle position in correction mode.
- D16¶
- -Max
359
- -Min
0
- -Unit
1°
- -Description
Lower needle position in correction mode.
- D18¶
- -Max
3
- -Min
1
- -Unit
–
- -Description
Sewing mode, read only.
- O69¶
- -Max
1
- -Min
0
- -Unit
–
- -Description
- Choose when you can correction:0 = Correction is unavailable after thread trimming;1 = No limit.