Spiral Sketch

[ssulong]

Pro/Guru,
My first time posting. I hope this is the right forum.
Can somebody help me how to sketch below spiral?
Any formula associate with this?

If anybody that have the model with this spiral shape, it would be
wonderful if you can share it with me.

Regards,
SH

[amedina]

How do I draw a spiral sketch?



I'm trying to model a fan that has a spiral profile.



Regards



Alfonso



Alfonso Medina O.
Mechanical Engineer

[amedina]

This one worked. Do you know if you can start t at something other than
0?

Alfonso Medina O.
Mechanical Engineer

-

[ptc-1932745]

No, t is the 'domain' of the function, and varies from 0 to 1. You
could always offset from t by adding a constant to your desired value.

For example:

r=t+.3 (Now r would vary smoothly from 0+.3 to 1.0+.3)




Christopher Gosnell

TRIGON INC.
FPD Company
124 Hidden Valley Road
McMurray, PA 15317
PH: 724.941.5540
FX: 724.941.8322
www.fpdinc.com