7.9.3.14.2.  Conical thread by lengths
7.9.3.14.2.1. Regular thread
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7.9.3.14.2.1. Regular thread

The following example shows you how to use the thread feature with a conical thread.[100]

  1. Drag a rectangle.

    [Note]Note

    Part and thread are applied to the same sketch!

    [Important]Important

    The values used for nominal thread diameter, thread pitch [Thread pitch] and variant (if available) must be exactly the same in the thread table under $CADENAS_DATA\datasetup\threads must be exactly the same!

    If thread type [Thread type] DIN 158 is selected, a component with a nominal diameter of 13, for example, would not be possible!

    If thread type [Thread type] DIN 158 is selected, a component with a nominal diameter of 13, for example, would not be possible!

  2. Determine the axis of rotation [Rotation axis].

    [Note]Note

    The Cylindrical thread over length [Cylindrical thread by length] and Conical thread over length [Conical thread by lengths] buttons are only active once a rotation axis [Rotation axis] has been determined!

  3. Click the Conical thread over length [Conical thread by lengths] button.

  4. Determine thread start, thread end and material side by clicking into the respective area.

    1. Select thread start

    2. Select thread end

    3. Select material side

    Define thread

    Define thread

    -> Once the three steps have been performed, the respective dialog box is opened.

  5. Adjust the values in the Change parameters [Change parameter] dialog box as required and confirm with OK.

    • External thread [Outer thread]: The checkbox is already activated or deactivated according to the previous selection.

    • Thread type: Select the desired value from the list.

    • Thread pitch:

      The "def. [def.] " checkbox is set by default. A standard thread is created in accordance with the set standard.

      If you want to create a fine pitch thread with defined thread pitches, deactivate the checkbox and enter the variable name for the thread pitch (e.g. 'P ').

      [Note]Note

      For a fine pitch thread, the corresponding variable for the thread pitch must be created in the table!

      See also Section 7.9.3.14.1.1.2, “Various thread pitches and derived automatic calculations for e.g. line description and core diameter ”.

    • Variant:

      Is used for certain threads and enables further specification. DIN 158 was used in this example. So enter either "Regular" or "Short".

      [Note]Note

      If the option is available in the thread table, the value must be set.[a]

      For example, DIN 158 uses the values "Regel" and "Kurz" as variant.

      [a] If available, there should be a selection in the list field. You can also take the value from the thread table under $CADENAS_DATA\datasetup\threads and enter it manually.

    • Left-hand thread [Left-handed thread]:

      If the second checkbox is activated, you can carry out the query of whether left or right thread through the table as well. In this case, enter the respective variable name into the input area.

    • Nominal diameter:

    • Thread length:

    • Run-out length [Run out length]: If you activate the checkbox, the run-out length is calculated automatically, otherwise you can also enter a variable.

    Once the decisive values have been correctly set, the thread is shown in the sketch.

    You can further adjust values and immediately see the changes in the sketch.

  6. Delete the outer edge.

  7. If needed, trim the lengthened edge.

    Now the sketch is finished.

    The thread is automatically marked as a cosmetic element (blue lines).

  8. Close the sketch with .

    Result in 3D view

    Result in 3D view



[100] You can find the example with the training catalog installed under $CADENAS/Training/PARTdesigner/Threads/conical_thread.prj.

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