How to model the component as shown in the image in Solidworks?

I tried doing the model but i'm not able to handle the helix properly. The profile change is complex to understand. I suceeded in creating something similar to this but not like the one shown in the image.

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3 Answers

That's practically a double thread. You have to use the feature "swept cut".

 
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You can also try to make a straight cut with the required shape and than with the flex option, twist the object.
Also works fine....

 
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Like Arestide said.....Helix, swept cut...
This will do the trick..

 
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