Creating a Thread Mill feature

1. Create a rounded Step Bore or Pocket feature or a round Boss to thread.
2. Click the Features step in the Steps panel.
3. Select Thread Milling and click Next to open the New Feature - Dimensions page.
4. Specify the Thread dimensions:

   Type — Select ID for an inner diameter thread or OD for an outer diameter thread.

   • Custom — Enter the thread dimensions.
   • Standard Thread — Select this option, then select a thread standard and size from the lists to use standard dimensions.

   Thread — Select a Left hand or Right hand thread. When viewed from the end of the part toward the chuck, on a left hand thread the tool winds counter-clockwise as it moves towards the chuck, on a right hand thread the tool winds clockwise as it moves towards the chuck.

   Minor/Major Diameter — Enter the Minor Diameter for an ID feature or the Major Diameter for an OD feature.

   Pitch — Enter the pitch of the thread.

   Thread Length — Enter the length of the thread.

   Thread Height — Enter the height of the thread.

   Tapered — If your thread is tapered, select this option and enter the taper Angle.

   Tapered taps are driven to a different depth than straight taps. For straight taps, a tip allowance is added to the thread depth so that the tool cuts the complete thread, this is not added for tapered taps so that the OD is not affected.

5. Click Next to open the New Feature - Location page to set the location of the center of the top of the feature.
6. Click Next to open the New Feature - Strategies page.
7. Click Next to open the New Feature - Operations page.
8. Click Next to open the New Feature - Default Tool page.
9. Click Next to open the New Feature - Feed/Speed page.
10. Click Next to open the New Feature - Summary page.
11. Click Finish to create the feature and exit the wizard or click Back to return to previous pages.

You can edit the feature later.