How to cut fabric with a rotary cutter effectively and accurately?

To cut fabric with a rotary cutter effectively and accurately, first ensure the fabric is flat and smooth. Place a cutting mat underneath the fabric to protect your work surface. Use a ruler or cutting guide to measure and mark the cutting lines. Hold the ruler firmly in place and use the rotary cutter to slice through the fabric in a smooth, continuous motion. Be sure to keep your fingers away from the blade for safety.