7. SEWING

7-4. Needle and knife position

The feed bracket is electronically controlled by means of pulse motors.

It is not necessary to change the position of the knife when switching between cutting before sewing and cutting after sewing. It is not necessary to change the needle down position in order to keep enough space for cutting when cutting after sewing has been selected.

Relationship between knife position and eyelet shape

0936Q

Straight section

Knife

ac

bd

Cutting shape (a X b) Eyelet shape (c X d)

0937Q

1.When cutting before sewing, the inside needle down position must be aligned accurately with the straight line section of the eyelet (when the cutting space H is 0).

This is set correctly at the time of shipment from the factory.

2.The shape of the eyelet is automatically changed according to the shape of the knife for cutting before and after sewing and for no cutting.

 

Cutting shape

Eyelet shape (c X d)

Knife No.

(a X b)

Cutting before sewing

Cutting after sewing

 

 

or off (no cutting)

 

1

2.1 X 3.2

1.9 X 2.8

2.4 X 3.9

2

2.8 X 4.3

2.4 X 3.9

3.3 X 4.6

3

3.0 X 4.6

3.2 X 4.1

3.6 X 4.8

4

3.2 X 5.4

2.8 X 4.7

3.6 X 6.1

5

Straight

Straight

Straight

6

3.8 X 4.3

3.2 X 3.6

4.0 X 4.5

3.At the time of shipment, the installation position for the knife is adjusted to the position shown in the illustration at left (when the cutting space H and the knife position compensation value I are "0").

(When cutting before sewing) (When cutting after sewing)

Explanation of the cutting space function

When cutting after sewing, this function moves the outer needle down positions in accordance with the knife shape so that the seam is not cut by the knife.

0938Q

Cutting space

1.When cutting after sewing, set the cutting space H to an appropriate value so that the seam is not cut by the knife.

*The cutting space H should generally be set to around 0.2 - 0.3. (Refer to page 24 for details on the setting method.)

*The knife position compensation value I should be set to "0".

Refer to "H. Setting the cutting space" and "I. Setting the knife position compensation".

RH-9800

33

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Image 39
Brother DH4-B980 instruction manual Needle and knife position, Explanation of the cutting space function
Page 38 Page 40

DH4-B980 specifications

The Brother DH4-B980 is an innovative and advanced sewing and embroidery machine designed for both professional use and home enthusiasts. Recognized for its robust performance and user-friendly features, the DH4-B980 stands out in the market.

One of the primary features of the Brother DH4-B980 is its impressive sewing speed, allowing users to achieve up to 1,000 stitches per minute. This heightened efficiency is complemented by a range of built-in stitches, offering over 150 different stitch options, including decorative, quilting, and utility stitches. This variety equips users with the creativity to tackle a broad spectrum of sewing projects, from simple alterations to intricate embroidery designs.

The Brother DH4-B980 also features advanced embroidery capabilities. With an expansive embroidery area of 10 x 6 inches, users can work on larger designs without the need for rehooping. Additionally, the machine comes with pre-installed embroidery designs and fonts, ensuring that users have a multitude of options right at their fingertips. The user-friendly LCD touchscreen display allows for easy navigation through features, adjustments, and design selections, making the embroidery process intuitive.

In terms of technology, the Brother DH4-B980 incorporates the advanced My Custom Stitch feature, enabling users to create personalized stitch patterns. This functionality sets the machine apart, as it allows for customization to fit specific project needs or personal styles. The machine is also equipped with automatic needle threading and a quick-set drop-in bobbin, adding to overall convenience and ease of use.

Another noteworthy aspect is the built-in sewing assistant, providing tips and settings based on the selected stitch type. This feature enhances the learning curve for beginners while catering to the needs of more experienced sewists. The machine’s high-quality LED lighting illuminates the workspace, ensuring clarity and precision in sewing, particularly in low-light conditions.

Durability is achieved through quality construction and materials, ensuring that the actual performance matches user expectations even after extensive use. The Brother DH4-B980 is also designed with versatility in mind, catering to quilters, fashion designers, and hobbyists alike.

In summary, the Brother DH4-B980 combines speed, versatility, and advanced technology in a single sewing and embroidery machine. Its user-friendly features and innovative capabilities make it an excellent choice for anyone looking to elevate their sewing experience.
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