Fusion 360 Tutorial – Reverse Engineering IKEA Mirror – Part 5

This is Part 5 of the IKEA Mirror tutorial.

Falling Apart

If you accidentally clicked and dragged any of the components while you were building the mirror, you would have seen something strange.

Without joints, components just fall apart!
If this happens to you, just Undo.
How do we fix this?

  1. The first step is to add a logical hinge joint between the handle and the frame.
    The handle is already in the right place, so we’ll use an “As-built” joint.

    Tip:
    When designing, building each component in the right place is much easier than building it somewhere else and having to move it or joint it later. 

    In the ‘Assemble’ drop-down menu, select the As-built Joint tool.
    Select the two components.
    The default joint is ‘Rigid’, so you see the components shake as though they were locked together. We want a rotating joint, so set ‘Type’ to be ‘Revolute’.(Nothing happens at first! This is because a Revolute joint needs to know what it should rotate around.)

  2. Zoom in on one end of the handle, and select the centre of the rounded part.
    Now you will see the joint animate for you – the handle will revolve around the frame.
    (If you selected the parts in the other order, the frame will revolve around the handle)
    Press Ok and the joint will be created.
    (You can find the joint in the ‘Browser’ tree, and see it move again by right-clicking or two-finger clicking and selecting ‘Animate Joint’)
  3. The frame and handle are now attached together, but the mirror is still floating in space. It needs to be anchored to something in the top component.Ensure the top component is active, and hide the Frame and Handle for now.
    Create a Sketch on the ‘Right’ plane, draw a horizontal line from the origin, and dimension it to be 125 mm long. Exit the sketch.
  4. This line will be an anchor for the parts of the mirror.
    First we will anchor the ‘Handle’
    Show the ‘Frame’ and ‘Handle’ components again.
    Bring up the Joint tool by pressing J. (‘Joint’, not ‘As-built Joint’)
    Hover the cursor over the front bottom edge of the handle until the alignment disc appears, then click.
    Hover over the rear end of the sketch line – the second alignment disc must have the same orientation as the first disc – then click.
    Ensure that ‘Type’ is set to Revolute, and press Ok.
    The whole mirror should have moved back to the rear end of the line.

    (If this does not quite work, Undo and try again)
  5. Now the Frame will be anchored down.
    Rotate the view around (with the ViewCube or the Orbit tool) so you can see the back of the frame, and zoom in to where you can see the details clearly.
    Bring up the Joint tool by pressing J. (‘Joint’, not ‘As-built Joint’)
    Hover over the rear bottom edge of the frame until the alignment disc appears, then click.
    Hover over the other end of the sketch line – the second alignment disc must have the same orientation as the first disc – then click.
    Ensure that ‘Type’ is set to Revolute, and press Ok.

    Zoom out, and the mirror should have reclined nicely, with both the frame and handle “resting” on the ground.
  6. The second sketch and the joints can be hidden now.

If you want to change the angle, Edit Sketch2 and change the length of the line, the mirror will open or close further. Give it a try!

This design looks pretty nice now, but we can do even better with Rendering.
Don’t forget to save your design.

← Part 4 | Part 6 →

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