Thx Google. I find it. 
Sanghoon Yoon is a designer in Seoul. He has been kind enough to share many script and expertise on his blog sac3’s digital plastic.
You may be interested in  some of the topic.
* GrasshooperÂ
* RhinoScript
*Â HyperShot
* Other
A brief tutorial by Thomas Anagnostou (Many useful scripts can be downloaded from his website.)
Usage:
1. Save the script *.rvb file to a directory. For example: “C:\Program Files\Rhinoceros 3.0\Scripts\GearGen.rvb”
2. Create a new alias (e.g. GearGen) with a macro. Example: !_-loadscript “C:\………….\gearGen.rvb”
(Include dash and underscore. Replace the dots with your own directory path. Use double quotes for the path)
3. To run the script, type the alias name in the command line.
Url:
Rhino Wiki
Summary:
Demonstrates how to create Archimedean Spirals using RhinoScript. (Rhino 4.0)
Answer:
In polar coordinates (r, Θ), an Archimedean Spiral can be described by the following equation:
r = a + bΘ
with real numbers a and b. Changing the parameter a will turn the spiral, while b controls the distance between successive turnings.