Create a spring with FreeCAD

a step by step tutorial for creating a spring with the open source program FreeCAD

  1. Step 1:

    Open a new File in the Part workbench.

    Click on create primitives and choose "Helix".

  2. Step 2:

    Now, we set the height to 10mm

    and the radius to 2.4mm

    and click the "Create" Button.

    And now, we have a helix with 10 turns.

  3. Step 3:

    We change to the Part-Design workbench and create a new Body.

    We select the Helix and create a shape-binder.

  4. Step 4:

    We hide the Original Helix and see a yellow shape-binder helix.

    We take the front view and create a new sketch on the XZ-plane.

    We activate the helix in our sketch with the "external geometry" button.

    we draw a circle with a radius of 0.4mm at the green point of the helix.

    close the sketcher window

  5. Step 5:

    now, select click at first the circle and then the helix-shape-binder with ctrl.

    Press "additive pipe" button and see what will happened.

    A Helix!!! Congrats...

  6. Step 6:

    And now, we need an end of the helix.

    Open a new sketch on the YZ-plane.

    On the upper end, we have to make a vertical cut.

    1. We change the draw style to "wireframe"
    2. we take the end circle with "external geometry" (ctrl + x)
    3. an draw a rectangle like this.
    4. it is important that the rectangle completely overlaps the end.
    5. change the view to normal and close the sktech.
  7. Step 7:

    1. Press the pocket button.
    2. Change Type to "Trough all"
    3. Activate reversed
    4. Press OK

    At the next step, we finish ou helix with two steps.

  8. Step 8: Finish

    This step is actually one step, which we make two times.

    Which page you want to do first, you decide for yourself.

    I take the upper side.

    1. Select the vertical end of the helix and...
    2. Click the "Revolution" button
    3. Change the axis to "Base Z axis"
    4. Press OK

    and repeat this step on the other side.

    Congratulation!!! Well done...

    Your first helix !!!

    If you have any question, write me a message.