Mastering the Blob Brush tool for dynamic strokes in Adobe Illustrator

Society · Published 7 October 2026 Swipe more like this →

In short: This video demonstrates how to control stroke size and shape using the Blob Brush tool. You will learn how to manipulate brush dimensions through random intervals, fixed settings, or real-time pressure and tilt adjustments.

The Blob Brush tool offers three distinct ways to manage stroke size. You can set the brush to a fixed size that remains constant regardless of movement, or allow it to change at random intervals. For more precise, organic control, you can link the brush size to your stylus pressure, tilt, or rotation, allowing the stroke to vary based on how you interact with your tablet or art board.

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