Tutorial: How to model a Suspension Spring in SolidWorks and show design intent

For Any doubt ask me i will be happy to answer it.

  1. Step 1:

    In a new part draw a circle with radius equal to that of the spring.

  2. Step 2:

    Under Curves select Helix and spiral.

  3. Step 3:

    Select Variable pitch. And select pitch and revolution under define by. You will get a table. Enter following values.

  4. Step 4:

    The meaning of these values is that at the beginning the pitch is 3 mm, which increases gradually with revolution to a pitch of 10 mm at the 5th revolution. For the next 5 revolution the pitch remains same. For the next 5 revolution the pitch gradually decreases to 3 mm. similar logic can be applied to the other define by types. You can define helix with different values for different purposes.

  5. Step 5:

    After clicking on green tick you will get the following variable pitch helix.

  6. Step 6:

    To create a spring on the suitable plane right or top (if angle of helix is 0, 90, 180 or 270 degree),draw the circle with radius equal to that of the spring cross-section.

  7. Step 7:

    Sweep it along the helix.

  8. Step 8:

    Your coil for suspension is ready. Render it. you can also insert dampers. to make it a complete suspension system