: How to draw a stretched/pulled/conical spiral I'm trying to redraw a diagram, and I'm having difficulty recreating the base spiral: I need to make the concentric spiral part. Can you help me?

@Yeniel278

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

1) Take a "Spiral Tool"



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



3) A new spiral will be drawn:



4) Now transform the spiral:



5) Rotate and scale:



6) It will be look like this:



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



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



9) Thats all:

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