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In this tutorial, we’ll explain how to create magical Celtic knots. Ornaments accompanied Celts in life and in death. Ornaments decorated clothes, books, furniture, ware, weapons, and gravestones. I’ll show you three ways to create Celtic knots in vector – from simple to the difficult. The last techniques allows one to create knots of any complexity. Intrigued? Read more!
Final Image Preview
Below are the Celtic knots we will be working towards in this tutorial. Want access to the full Vector Source files and downloadable copies of every tutorial, including this one? Join Vector Plus for just 9$ a month.
Tutorial Details
- Program: Adobe Illustrator CS3
- Difficulty: Intermediate
- Estimated Completion Time: 60 minutes

Step 1
Let’s open a new document in Illustrator (File > New) and enter the size 600 px by 600 px (but you can choose any size you want). I used the CMYK color mode to use it for printing.
Now select the Rounded Rectangle Tool, and create a rounded rectangle without fill, and with a black stroke. The radius can be changed by pressing the arrows up or down button, while keeping the left button of the mouse held down.

Step 2
Open the Appearance and Stroke palettes and create multiple strokes as shown.

Step 3
Select a Rounded Rectangle and go to Object > Transform > Rotate, then enter the angle 90 and press the Copy button.

Step 4
Select both rounded rectangles and apply Object > Expand Appearance, and then Object > Expand.

Step 5
Select the Live Paint Bucket (K), then fill a few areas with white as shown below

Step 6
Change the fill to black and fill in areas as shown.

To convert the Live Paint group into individual paths press Expand on the top tool panel. Now group (Command + G) all the objects.
Step 7
Select the Ellipse Tool and create an ellipse without a fill and a black stroke. Align them along the vertical and horizontal as shown.

Step 8
Select the ellipse and create multiple strokes (see Step 2).

Step 9
Select the ellipses, go to Object > Expand Appearance, Object > Expand. Select all objects and apply a Live Paint Bucket (K) (see steps 5 and 6).

Step 10
Select the Live Paint Bucket (K), set the fill to black and fill in areas as shown below.

I congratulate you! The first simple ornament is ready!

Step 11
The second way. Now we start weaving the ornament from three simple elements. For convenience of work go to View > Show Grid. Create the first element. Select the Rounded Rectangle Tool and create a rounded rectangle without fill and a black stroke.

Step 12
Select a path and add two points as shown. Select the Scissors Tool (C), cut the left and right new anchor points and delete the right bottom part of the path.


Step 13
Create multiple strokes.

Step 14
Create the second element. Duplicate the first element. Select the Scissors Tool (C), cut the top anchor point and delete the right part of the path.

Step 15
Select the Pen Tool (P) and add a new point as in the image below.

Step 16
Let’s create the third element. Now duplicate the first element. Select the Scissors Tool (C), cut the top-left anchor point and delete the top part of the path. Drag the top point up as shown.

Select all elements and go to Object > Expand Appearance, and also apply Object > Expand.
Step 17
Duplicate, rotate elements and start to make an ornament.

The second simple, Celtic ornament is finished!

Step 18
The third way. Let’s create a more difficult ornament. Select the Ellipse Tool and create an ellipse without fill, and a black stroke. Duplicate the ellipse and move it up and to the right.

Step 19
Select the Scissors Tool (C), cut the top anchor points on both ellipses. Now drag the anchor points downwards a little.

Step 20
Select the left point of the left ellipse and the right point of the right ellipse. Go to Object > Path > Average, and select Both. Then apply Object > Path > Join.

Step 21
Drag the handles and we will give a more complete view of the curve.

Step 22
We apply a similar action with the right point of the left ellipse and the left point of the right ellipse.

Step 23
Open the Appearance and stroke palettes and create a multiple stroke as shown.

Step 24
Let’s create illusion that the path crosses. Select the Scissors Tool (C), cut the path as shown below.

Step 25
Let’s disguise the places where the cuts are.

Select the path, and place it above all.

Select the blue stroke in the Appearance palette and press on the Round Cap in the Stroke palette. Now the cut areas are disguised. Group both paths (Command + G).

Step 26
Select the group and go to Object > Transform > Reflect, and press Copy.

Step 27
Select the first group and rotate it 45 degrees (Object > Transform > Rotate). Select the second group and rotate it -45 degrees.

Step 28
Change the vertical sizes of the groups as shown.

Step 29
We’ll now apply techniques from Steps 24 and 25. Remember that at the crossing of two paths one is to pass above and another passes below, moving further on that path that was from above we should hide this line on following crossing downwards. Observe alternations below to avoid errors.
Ungroup all paths (Shift + Command + G). Scissor part of the path and go to Object > Arrange > Bring to Front.


Step 30
Select all objects and go to Object > Expand Appearance, and then Object > Expand. Select all blue elements of the first shape and apply a gradient as shown.

Now select all blue elements of the second shape and apply a gradient.

Conclusion
The final celtic knot is ready! The last set of techniques allow you to create knots of any complexity.

Here is an alternate version of the final series of techniques. Have fun creating your own!

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Yay! Super helpful! I usually draw my knot work by hand and then scan and vectorize and I’m sure you can imagine how long that can take. Techniques 1&3 look perfect for ornaments and technique 2 looks great for area fills, and can be made to look way more complex with just those 3 simple shapes.
Great tut.
although it should be noted that many people only consider a design to be a “true” Celtic knot if it’s made of one continuous line. making techniques 1&3 incorrect for if you’re going for a look of historical accuracy.
How to make it one continuous line? Do you know?
Honestly I’ve only ever done knotwork by hand. And am most familiar with the style that is drawn on a grid (you get a look similar to technique 2) to keep things continuous you just have to kind of eyeball the whole thing and make sure you haven’t created any double loops or anything, unless it is for a desired effect. Good resources to look up for this if you are genuinely interested in this style of art are a book called “how to draw celtic knotwork” (great title
) and I would reccomend studying the book of kells (http://en.wikipedia.org/wiki/Book_of_Kells) and other illuminated manuscripts from Ireland & Scotland when the use of knotwork was at it’s peak.
The flexibility of the Illustrator is just amazing !
some cool skills here … thanks for that!
Nice knots, they come out clean and even…
Great work. My eyes are tweaked a bit now. Looking good though, thanks for sharing.
I WAS LOOKING FOR THIS TUTS. A GREAT THANKS FOR THE GREAT JOB.
This is so cool, thank you.
Great tutorial and some nice results. I will have to try these out and use them to improve my Illustrator skills for drawing shapes. Thanks.
Great tutorial, but at step 29, when I apply the gradient to the first group of blue objects, I get a distinct gradient on each of the objects separately rather than on the whole group. What am I missing?
I’m sorry, I meant step 30.
You must use the Gradient Tool (G).
I don’t know why but in step 30 couldnĀ“t apply the gradient with any method, so I selected all the parts and merge them, then with the live paint bucket tool I made the gradients, and it works the same.
Thanks for the tutorial
You’re right. Thank you.
really useful technique, thanks for sharing
very useful, thanks,