How to use the Blob brush for Illustrator Tutorial

The blob brush in Illustrator CC CS6 etc can be found beneath the paintbrush tool or use shift+B to select the blob brush. The blob brush uses fills and not strokes.

Blob brush in Illustrator

blob brush for Illustrator tutorial
  1. Go to the paintbrush tool in Illustrator toolbar (where the blob brush is located)

  2. Select the second tool 'blob brush'

  3. Set the color of the fill

  4. Double click the icon of the blob brush to change size etc

  5. Apply blob brush to artboard

The blob brush has a number of settings such as size, how it is selected, fidelity etc. The Illustrator blob brush can be filled with all kinds of Illustrator colors. You can add strokes to the blob brush to add a border to the artwork. You can use the blob brushes with other paths and they can be blended into the blobs. It is a tool that is great for creating all kinds of amazing shapes. You can apply the blob brush in straight lines by holding down the shift key in Illustrator. You can add randomization to the blob tool. You can also use the blob brush as an excellent source for new symbols in Illustrator simply by dragging any created design into the panel. You can also add effects to the blob brush. The blob brushes can be used once or multiple times to create basic artworks as well as more complex brush strokes and artworks. This tutorial shows you how to start with the Illustrator blob brushes and the settings and how to apply via the Illustrator toolbar. It also shows a number of variations such as adding strokes and live effects to the powerful painting tool

Blob brush settings

blob brush illustrator location

You can see the settings for the Illustrator's blob brush tool

  1. Double clicking the icon

  2. There are a number of settings such as keep selected, merge only, fidelity, size, angle and roundless. It has a similar look to the Photoshop brush tool with size and angle etc. The keep selected and merge only with selected are very useful if you want the blobs to stick together and create an extended path (though, you can also use the pathfinder to unite the results). The size and angle etc are great for creating slightly different brush strokes, more like the calligraphic brush strokes. There are also a few additional options such as having a fixed size or introduce randomization and variation for the size (as well as angle and roundness) as well as settings for an artpad / pen.

  3. Click OK

Color fill for the blob brush

blob brush and gradients fill

The Illustrator's blob brush can be filled with gradients as well as solid color and also patterns

 

Shift / straight line with the blob brush

shift tool and the blob brush in Illustrator

You can add the Illustrator blob brush stroke in a straight line by holding down the shift key. You can also see on the right, the blob brushes have been applied in a straight line by holding down the shift key. You can apply them. You can use it to create all kinds of characters as well such as a Z shape.

 

Adding strokes to the blob brush stroke

As you add the artwork, you will only see the fill being added but you can always add a stroke on completion as well as other effects such as live effects / blurs / additional fills etc via the appearance panel. You can also then add width profiles to the blob brush.

  1. Apply the blob brush

  2. Keep selected

  3. Go to the stroke settings and set color etc

  4. Apply a width profile

 

Use blob brush with other paths

Depending on the selection set for the blob brush tool, you can merge with other paths already created (circles etc)

  1. Select path

  2. Select the Illustrator blob brush tool

  3. Double click to see the options to see that merge and selected are on

  4. Apply brush strokes to path such as circle

 

You can control the merging by only merging with selected check set to on. You can also add the strokes and then add additional paths to that via the pathfinder combine / unite. You can also use the subtract to add perhaps add spots and dots to the artwork. You can also add them to symbols (in editing mode) and can find a lot of different symbols on this site for use with the tool

Effects and the blob brush

Once you have added the blobs (and you can add them as actual spots or in one continious stroke) you can add effects such as tweak or roughen or offset or glow etc and you can then expand the appearance via the object menu.Or add graphic styles such as on the right

 

Other tutorials for Illustrator and use with the blobs

1. how to use the new powerful live line segment tool in Illustrator

Illustrator brushes to use with the blob brushes

1. 16,000 Illustrator brushes designs and strokes.

References and sources

1. Blob brush for Illustrator on Adobe

 

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