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Multi-Pitch Spring in SolidWorks

Tutorial by khalid
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In this tutorial I'll show how to create a closed end multi-pitch spring using SolidWorks 2014.

  1. Step 1:

    Creating the base sketch:
    - Select the Front plane from the FeatureManager tree.
    - Click new Sketch.
    - Sketch a circle centered on the origin.
    - Add a diameter dimension of (1) unit length .

  2. Step 2:

    Creating a helix using Variable Pitch:
    - Insert (Curve) Helix-Spiral.
    - Under Define By, select: Pitch and Revolution.
    - Under Parameter, select: Variable Pitch.
    - Under Region Parameters, enter the values for the Pitch, Revolutions, and Diameters.
    - Set Angle to (0) deg and Clockwise direction.

  3. Step 3:

    Sketching the sweep profile :
    - Select the Top plane and open a new sketch .
    - Sketch a circle near the right end of the helix.
    - Add a Pierce relation between the center of the circle and the helix.

  4. Step 4:

    Sweeping the profile along the path:
    - Insert (Bose-Base) Sweep.
    - Select the small circle for sweep profile .
    - Select the helix for sweep path .
    -Click OK ·

  5. Step 5:

    Creating a trimmed sketch:
    - Select the Top plane from the Feature Manager tree and open a new sketch.
    - Sketch a rectangle and add a Midpoint relation between the line on top and the origin.
    - Add a width and a height dimension.

  6. Step 6:

    Extruding a cut:
    - Insert(Cut) Extrude.
    - Set the Direction Through All Both.
    - Enable the Flip Side to Cut checkbox.
    - Click OK.

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