Tutorial: How to make a springy spring

Here is another way Using 3Dsketch
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Step 1:
go to 3Dsketch
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Step 2:
click on "Equation Driven Curve"
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Step 3:
write the equations in the text file for z,y,and z as below
(I attached a text file) -
Step 4:
exit sketch go to reference geometry and define a plane using curve an start point
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Step 5:
sketch the profile you want to sweep
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Step 6:
hit swept boss\base and choose the profile and path as below
in option choose "twist along path" and enter the parameter as in the picture -
Step 7:
here it is!
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Step 8:
and here is a rendering