This section explains how to create a tapered external thread.
IRONCAD is a CAD system that allows for efficient modeling using standard catalog items.
Tapered external threads can also be easily created by using the [Part Cone] item from the [Shapes] catalog.
Procedure:
[1] Drag & drop [Part Cone] from the [Shape] catalog.
[2] Resize part.
[3] Edit cross-section of Part Cone.
[4] Select the outer diagonal line and
check [Vertical].
Then click [Finish] of the cross-section.

Since a " Cosmetic thread" cannot be created directly, the shape must first be converted into a cylindrical form.
[5] Click
[Cosmetic Thread] in the [Annotation] tab.

[6] Select start edge from model. Set properties of thread.

[7] Click [OK].
[8] Edit cross-section of Part Cone again.
Uncheck [Vertical] of outer line, then edit the line to be tapered.
[9] Click
[Finish].
Please refer to the video below.
IC-072