1: Click to insert a spiral scan. If you are drawing a spring, it will be an extension, if you are cutting a thread, it will be a cut!
2: The Helical Scan dialog box appears. Here, scan equidistant threads, that is, the pitch is a certain value and it is a right-hand thread. Select as follows: ①Constant ②Through the axis ③Right-hand rule and click Finish !
3: Select a datum plane to draw the rotation axis and spiral trajectory! Just click on a surface that is orthogonal to the top surface of the nut. Click to select the direction and select "Forward". The sketch view window is selected by default!
4: Enter the Sketch Rotation Axis and Trajectory dialog box, press step A and click the copy line button, click the inner contour line of the nut to complete the scan trajectory; press step B, click the construction line button, and click the center line to complete the rotation axis. ! Click the check mark on the right toolbar to complete the sketch.
5: Enter the pitch value and click the check mark in the lower left corner!
6: Enter the sketch section and draw the section at the cross of the construction line. Draw a circle here! Then click the check mark
The selection direction dialog box will appear. You can see the specific direction of the inner side of the material in the dialog box. After selecting the forward direction.
7: Spiral scan completed!