Leather sheath pattern — custom dimensions

Sheath pattern: parameters, component list, and SVG and DXF examples. Change the dimensions in the VLOTHO CAD constructor and export your own patterns.

Basic sheath made of two walls and a protective spacer. The contour and dimensions are controlled by model parameters; the export contains separate parts for checking the construction.

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
Sheath width	75
Body length	220
Spacer thickness	3
Rounded tip width	30
Spacer width	10
Hanger blank length · 0 = without it	0
Hanger width	22
Retaining strap length · 0 = without it	0
Strap width	18
Leather thickness	2.5
Seam offset from the edge	4

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
Sheath — front panel	75.0 × 220.0
Sheath — back panel	75.0 × 220.0
Protective spacer	75.0 × 220.0

How the size changes the pattern piece

Calculation example: the «sheath width» parameter was changed from 75 to 83 mm. The diagram shows the «Sheath — front wall» part before and after recalculation at the same scale.

Sheath: Sheath width 75 and 83 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, 3 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 shape serves as a geometric example. Check the specific blade contour, clearances, spacer thickness, retention, and seam protection on a physical mock-up before using the finished product.

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 piece table and the outer cutting contour may differ because of 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