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I'm trying to redraw a diagram, and I'm having difficulty recreating the base spiral: Diagram/Spiral

I need to make the concentric spiral part.

Can you help me?

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Welcome to GD.SE! What you're trying to do is draw bezier curves...knowing that term will help you as you search online if no one gives you an answer here right away. – Brendan Oct 1 '13 at 11:20
Thanks @Brendan. Will keep that in mind. – E_L Oct 1 '13 at 12:50
"conical spiral" is another search term that might help. One quick thing you could try (not tested): draw one segment as a path with a stroke, copy, paste, scale up by X%, align, join paths, paste again, scale up by X% twice, align, join to the two existing segments, paste, scale up by X% 3 times... etc – user568458 Oct 1 '13 at 13:09

It is easy as usual!
For that i will use Illustrator CS5.

1) Take a "Spiral Tool"

enter image description here

2) Now click on the screen and set some options for the spiral creation. Then click "OK"

enter image description here

3) A new spiral will be drawn:

enter image description here

4) Now transform the spiral:

enter image description here

5) Rotate and scale:

enter image description here

6) It will be look like this:

enter image description here

7) Take a "Reshape Tool" (the magic begins :)

enter image description here

8) Select the lowest node of the spiral and drag it to bottom:

enter image description here

9) Thats all:

enter image description here

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That's exactly the sort of thing I'm looking for... unfortunately its using Adobe Illustrator which costs me money or requires me to seek out pirate copies. Do you know how to do this in something free like inkscape or gimp? – E_L Oct 1 '13 at 15:01
@E_L Oww, sorry no :( – mast0r Oct 1 '13 at 15:13
@mast0r all the steps excepts step 9 is available on inkscape. thanks – viyyer Nov 1 '14 at 20:21

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