Tutorial - Modeling Torsional spring in Creo Elements aka Pro/E?

1. Step 1

   Insert >> Helical Sweep >> Protusion.
   
   

2. Step 2

   Keep pressing Middle mouse button for default setting and when we have to select plane, select Top plane.
   
   

3. Step 3

   Draw a center line about the vertical axis.
   
   

4. Step 4

   Draw three lines like these.
   
   

5. Step 5

   Exit the sketch and define the pitch value.
   
   

6. Step 6

   Now define the cross-section of the spring.
   
   

7. Step 7

   Exit the sketch and click OK.
   
   

8. Step 8

   We have the spring generated.