Straight Rotary Cuts: Ruler, Mat and Alignment

Eight Needles Journal · Rotary cutting

For a straight rotary cut, the ruler is a guide, the mat supports the blade and the markings establish alignment. Each has a separate role. A straight-looking edge alone does not prove that a ruler is suitable for use with a cutter.

OLFA 28mm rotary cutter. Photo from the Eight Needles collection.

Use a cutting guide

Check that the ruler is intended for the cutting method. Place it on the chosen reference line and verify both ends before cutting. Keep fingers behind the protected working area described by the tool instructions and clear of the blade path.

Keep the material supported

Arrange the entire cutting length on the mat. Fabric hanging off the edge can pull the layout out of position. If the cut exceeds a comfortable reach, close the blade and reposition the setup safely.

Check before lifting

Inspect the cut while the ruler and material remain aligned. Do not repeatedly run the blade through a shifting layout. If an area has not cut, first determine whether the blade, material layers or setup caused the problem.

A practical example

A straight cut extends beyond your comfortable reach. Stop with the blade closed and reset the work so the next section is fully supported. Keep the reference line consistent rather than stretching forward and losing control of the ruler.