What do the notches on a sewing pattern mean?

Do you cut the triangles on a sewing pattern?

What do the triangles mean on sewing patterns? Triangles and diamonds are called notches and indicate you need to mark these points to enable you to match up the pattern when sewing. Notches can be single, double and colored or open. I always recommend you cut outwards but this is a personal preference.

Where are notches used?

Notches are commonly used in material impact tests where a morphological crack of a controlled origin is necessary to achieve standardized characterization of fracture resistance of the material. The most common is the Charpy impact test, which uses a pendulum hammer (striker) to strike a horizontal notched specimen.

What side of fabric do you pin on the pattern?

When you are cutting two layers of fabric, the pattern pieces do not have to be placed printed side up. If you are cutting one layer, however, the pattern pieces must be placed printed side up. They must also be placed on the right side of the fabric.

Do you cut fabric on the wrong side?

Fabric is usually folded right sides together for cutting. The only time it is cut right side out is if it has a design that must be taken into account and that does not show through to the wrong side. Fold the fabric as shown in the cutting layout on the pattern guide sheet.

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