Question: [![Hypnotic spiral](https://i.stack.imgur.com/aEWT7.jpg)](https://i.stack.imgur.com/aEWT7.jpg)

I'm looking to replicate this spiral pretty much exactly, but with perfect curves etc. using Illustrator. I've tried a few different methods including twist and also just the spiral tool but can't seem to get this exact shape. Any help would be appreciated.

Thanks!

Answer: 
I would redraw over the top of the image manually using the Curvature Tool. You can use extra anchors to try to achieve a more accurate curve as the spiral gets tighter in the middle. It could also be done with the Pen Tool if you are familiar with it.

For example

[![enter image description here](https://i.stack.imgur.com/I1tRO.png)](https://i.stack.imgur.com/I1tRO.png)

For more detailed info here's [Adobe's help page](https://helpx.adobe.com/illustrator/using/drawing-pen-curvature-or-pencil.html) for the Pen, Curvature, and Pencil tools.
I wasn't aware that AI had a spiral tool, and if it's similar to the same tool in Inkscape, this [tutorial video (3:38)](https://www.youtube.com/watch?v=EKrNp5_08wo) for creating the design you seek may be helpful.

Effectively, one creates a duplicate of the first spiral, shrinks it (or expands it) as desired, then joins the spiral origins together and creates a joined line at the outer edge as well. In the video, the outer edge is a straight line, but your objective might require using a segment of a circle to complete the design.

[![joined center](https://i.stack.imgur.com/NVupD.png)](https://i.stack.imgur.com/NVupD.png)

[![filled spiral](https://i.stack.imgur.com/6KCEX.png)](https://i.stack.imgur.com/6KCEX.png)