Create a Spiral Curve onto xy , xz and yz World Planes and Manipulate it By 4 Factors (Radius 1 , Radius 2 , Turns and Height. Maybe You Need To Do That by Quick Way .
Farsi Nevis is a fast and powerful plugin which allows you to create Persian (Farsi and Arabic texts in Rhino without any external tools. You can also copy or convert the texts.