Here is the tutorial.
Step 1
Start SolidWorks in part mode.
Step 2
Top plane>>Sketch.
Step 3
Draw a circle of 25mm dia.
Step 4
Curves>>helix and spiral.
Step 5
Defined by Pitch and revolution and pitch = 2.5mm and revolution = 10, start angle = 0º and Clockwise.
Step 6
Top plane>>sketch.
Step 7
Select the sketch under helix and then convert entities.
Step 8
Curves>>helix and spiral.
Step 9
ame pitch and revolution be 5. Change it to counterclockwise with taper helix 23.00º inward.
Step 10
We have the helix generated.
Step 11
We can sweep along the curves.