Log spiral Solidworks?

[kboyce]

Trying to model a logarithmic spiral in Solidworks with little success, when dealing with the helix/spiral all i get is an Archimedes Spiral. Then when i go and try an equation driven spline, it wont allow me to enter the correct eq. What must i do to be able to model this spiral?

 

[CorBlimeyLimey]

thread559-97699
thread559-199160

http://en.wikipedia.org/wiki/Logarithmic_spiral

http://www.google.ca/#hl=en&safe=of...=g9g-m1&aql=&oq=&gs_rfai=&fp=4f0211a6aff96922