Feb 18

Drawing a coil in Illustrator

2009 at 04.53 pm posted by Veerle Pieters

Today’s post is a brief one because the past week and the coming weeks are just so busy for me I can’t find the time to write a more extended article. Still, I hope some of you will find what I share is valuable.

Problem

A while ago I received an e-mail from a reader asking me if I could help him drawing a coil using a stroke. How do you create the overlapping effect?

Coil shape in Illustrator with no overlapping effect

Solution

The simple trick is to make a cut the stroke into 2 parts and move one part in fron of the other.

Make a cut in the path and move 1 path segmentin the front of the other

The you'll notice a tiny gap in the path where you made the cut.

How to solve the tiny gap in the path

To hide this, select the top stroke color (in my example white) in the Appearance palette and change the Cap options of the strokes to Round Cap.

Set the Cap options of the top stroke color to Round Cap

Want to learn more?

VECTORTUTS+ Vector Tutorials and More A good and not expensive source to learn more about Illustrator, Photoshop, or web design is by joining the Tuts+ sites. You get access to the source files for just $9 a month. So your ONE membership gives you access to members-only content for ALL the Plus sites. I've written a tutorial for the Vector Tuts section.


13served

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permalink this comment Angelo Tan Wed Feb 18, 2009 at 05.44 pm

Thanks for this! I’ve always wondered how to do that but other tutorials make it too complicated. Thanks for making learning simple!


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permalink this comment Patternhead Wed Feb 18, 2009 at 05.49 pm

A nice trick.

Thanks for sharing.


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permalink this comment Richard Wed Feb 18, 2009 at 05.51 pm

Simple and to the point.


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permalink this comment Mr. Smith Wed Feb 18, 2009 at 06.05 pm

Any tips are good, quick or not! I never thought to use the round cap for this problem. Brilliant ... thanks!


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permalink this comment melissa Wed Feb 18, 2009 at 11.23 pm

Everything you share is valuable! Thank you!!


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permalink this comment Nana Yaw Thu Feb 19, 2009 at 12.48 am

Thanks for this,but cant it be applied in Cs3 as well.damn question?


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permalink this comment Veerle Pieters Thu Feb 19, 2009 at 11.17 am

Nana Yaw said:

Thanks for this, but can it be applied in Cs3 as well?

Yes I believe it should work. I tested this myself in CS3 to be 100% sure. There are 2 things to take into account to have it work:

1) You need to make sure you have the Stroke Options shown in the Stroke palette: click the palette’s menu button (top right) and choose ‘Show Options’

2) You need to make sure you select the stroke segments using the Direct Selection tool (white arrow) and select the top level stroke color (in my example this is white) in the Appearance palette.

Hope this helps you out ;)


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permalink this comment Mike Fri Feb 20, 2009 at 12.17 am

Great article.


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permalink this comment wentzr Fri Feb 27, 2009 at 10.58 pm

Helpful tip!

Just my ten cents: many people would consider that a “loop”, not a “coil”.. A “coil” by definition doesn’t overlap, instead is a single line which winds (or coils) in on itself.

I happened across this page looking for a simple method for creating a coil in illustrator, like in an RFID tag or an electric oven range, and although it is a helpful tip you’ve published I found the title misleading.


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permalink this comment Billy Mon Mar 2, 2009 at 08.16 pm

That is a nice little tutorial - thanks.


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permalink this comment Ann Childs Tue Mar 3, 2009 at 12.05 pm

Sorry to be a bit thick, but how do you draw a stroke that has open ends? When I use the pen tool and add a stroke, it circles it completely, so when I draw the coil and cut it, I get a thick curved end in the middle of the coil. Which looks nothing like your example. Please help me out of my ignorance!!
Many thanks
Ann


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permalink this comment George Probst Thu Mar 12, 2009 at 02.52 pm

Nice technique. Simple, yet effective.

Ann, do you a round brush applied to the stroke, by chance? That might be causing the round ends on your stroke. Check your appearance palette. See below. (I used a little bit different stroke sizes than in Veerle’s example, but it’s still the same technique.)
appearance palette stroke settings


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permalink this comment Ann Childs Fri Mar 13, 2009 at 10.07 am

You are a star George! And I feel a little bit stupid…! Many thanks for the enlightenment.



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