Sling bag pattern based on the dimension diagram — VLOTHO CAD

Sling bag: six pieces according to the diagram: 36 × 19, 34 × 14, 24 × 14, 20 × 10, 32 × 3, and 8 × 4 cm. Editing and pattern export in PDF, SVG, DXF.

Reconstruction based on the provided dimension diagram: rounded body, front zip opening, pocket, and shoulder strap. The strap size is preliminary.

Open this example in the designer

The example opens with the dimensions specified below. Its changes are saved separately from your regular work. You can return to it using the link in the editor.

Example source parameters

Linear dimensions are given in millimeters. Parameter names match the designer fields; these are the initial settings and can be changed.

Parameter	Value
Front · width	360
Front · height	190
Back · width	340
Back · height	140
Zipper panel · width	240
Zipper panel · height	140
Pocket · width	200
Pocket · height	100
Zipper placket · length	320
Zipper placket · width	30
Bridge · length	80
Bridge · width	40
Strap · blank	1100
Strap · width	30
3D volume · preliminary	80
Material thickness	1.2
Stitch line offset from pattern	4
Additional seam allowance to pattern	0

Parts in this example

The dimensions below are derived from the geometric model. The parts list changes with the parameters and enabled options.

Piece	Size, mm
Front wall	360.0 × 190.0
Back panel	340.0 × 140.0
Zipper placket	320.0 × 30.0
Bridge	80.0 × 40.0
Inner pocket	200.0 × 100.0
Front-entry panel	240.0 × 140.0
Shoulder strap · Additional piece	1100.0 × 30.0

How the size changes the pattern piece

Calculation example: the “front” parameter · “width” was changed from 360 to 396 mm. The diagram shows the “Front wall” piece before and after recalculation at the same scale.

Sling bag: Front · width 360 and 396 mm — The dimensions below the drawing refer to the outer cut-edge contour. This is the result of a geometric calculation.

Open modified example

You can also download the modified JSON project. After modification, check the assembly on a mockup.

Download the pattern example

The files were generated using the standard VLOTHO CAD export from the parameters specified above. They show the model geometry and do not replace checking the product in the material.

PDF A4, 15 sheets PDF patterns, 1:1 SVG patterns, 1:1 DXF patterns, mm JSON project

PDF A4 automatically selects portrait or landscape pages and rotates the pieces to reduce the number of sheets. For assembly, a 10 mm overlap, numbers, and alignment marks are provided. The standard PDF contains one piece per page. Both variants include a 100 mm test segment. For your own dimensions, modify the project and export a new PDF. How to print patterns at 1:1 scale.

What to check before cutting

The item was not physically sewn. The contours were reconstructed from a screenshot; the joining of the differently sized front and back, zipper, and assembly should be checked on a mockup. Depth applies only to 3D.

VLOTHO CAD builds a geometric prototype. Allowances for bending, skiving, assembly thickness, and construction methods are determined by your material. Start with a paper mockup and a trial piece.

How to get a pattern for your dimensions

Open the model and set the dimensions in millimeters. To reproduce the tabular example, first load its JSON.
Check the parts list and enabled options. Adjust the seam and dimensions for your material.
Save the project and export a new pattern set. After changing the dimensions, the previous files no longer correspond to the project.

Dimension reference for this model: Stitching line. Dimensions in the parts table and the outer cut contour may differ due to the seam allowance. How to check seam allowances and stitching lines.

File preparation

Printing patterns on A4 at 1:1 scale · DXF units and layers before cutting

Next step

Construction and export instructions · Manual contour editing · All models