Tutorial - Making a herring bone gear in AutoCAD?

Here is the tutorial.

  1. Step 1:

    I will use the body created in previous tutorial on Creating helical gear in AutoCAD.

  2. Step 2:

    Enter MIRROR3D command.

  3. Step 3:

    Select the gear body to mirror and press enter. Now it asks for 3 points of the mirror plane.

  4. Step 4:

    We will select the three vertex of the gear body of the top plane. First one is like this.

  5. Step 5:

    Now we have the body mirrored.

  6. Step 6:

    Enter union command.

  7. Step 7:

    Select both bodies and press enter. Now we have herring bone gear created in AutoCAD.

  8. Step 8:

    Subtract a cylinder from the gear body and we have the required gear.