Rotary cutter
Definition
A rotary cutter is a cutting tool with a round, razor-sharp blade on a handle, rolled along fabric on a self-healing mat for fast, accurate cuts.
A rotary cutter cuts fabric flat on the table, without lifting it as scissors do, so pieces stay on grain and edges stay true, even in slippery or stretchy fabrics. It is used with a cutting mat underneath and, for straight lines, a clear acrylic ruler as a guide.
Blade sizes:
| Size | Use |
|---|---|
| 18 mm | Very tight curves and small details |
| 28 mm | Curves such as necklines and armholes, small pieces |
| 45 mm | The all-round size for garments and quilting |
| 60 mm | Long straight cuts, several layers, thick fabric |
Hold the pattern in place with pattern weights instead of pins, which the blade can hit. Cut away from yourself, keep your other hand flat on the ruler or the weights and well clear of the blade path, and stand up so you can see the line.
A rotary blade is as sharp as a scalpel. Close the guard every time you put the cutter down, even for a second, and keep it out of children's reach. Replace the blade when it starts skipping threads: a dull blade needs more pressure, which is when slips happen. Wrap old blades before discarding them.
Rotary cutters are ideal for straight pieces such as waistbands, bands and bias strips. For pieces with many notches, scissors may be quicker. See also cutting line.