Pitch of Thread – Specifies the pitch of the thread (the pitch is the distance travelled down the axis of the thread when the thread has rotated through 360°).
Use these Thread tab parameters to define the shape of the thread:
Major/Minor Diameter - Normally, you would start defining the thread by selecting an arc entity. This arc represents the major diameter of an external thread, or the minor diameter of an internal thread. You can also digitise a point that represents the centre of the thread (when using the thread milling cycle with hole features for example). In this case, use these fields to specify the major/minor diameter for the thread.
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Pitch of Thread – Specifies the pitch of the thread (the pitch is the distance travelled down the axis of the thread when the thread has rotated through 360°). |
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Pitch is NOT the same as the lead of the thread, which is calculated as follows:
Lead = Pitch of thread x Number of starts.
Number of Starts – Specifies the number of starts for the thread. If you want more than one start, the starts will be equally spaced around the top of the thread.
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Start Angle – Specifies the start angle of the initial thread. The default is 0°. The angle is measured from the direction of the X axis anticlockwise in the direction of the Y axis. |
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Depth of Thread – Specifies the depth of the thread to be machined. |
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Thread Side – Selects an Internal or External thread.
Hand of Thread – Selects a Right or Left-Handed thread.
See Also
Determining the Thread Mill Cut Direction
