Undercut trapezoidal threads when using external=False

Question

Undercut trapezoidal threads when using external=False

Dmytry opened this issue a year ago · comments

Dmytry commented a year ago

Looks like this:

Note that the threads are undercut i.e. the angle is -29 degrees rather than 29 degrees.

Also, it seems that the root_radius and apex_radius are swapped (which may be why).

external=True works as expected.

Dmytry · Answer 1 · Wed May 17 2023 01:01:19 GMT+0800 (China Standard Time)

On second thought that may be me not understanding how the external threads are meant to be used - in my code I was using them to cut a hole rather than adding them after cutting a hole.