I have followed the (excellent) advice in the forum post: Adding a custom thread type.
and added a M12x1 thread for Inductive Proximity Sensors.
When I try to use the new thread, although it is shown in the list, I get the error message 'Thread Data Not Found for M12x1'.
What have I done wrong?
I fixed it:
The entry in the 'Size' column on the 'Sizes' tab has to match, exactly, the entry in the 'FullSize' column on the Thread Data tab. Mine did not.
All working now.
Retrieving data ...