The jig consists of a HF multi-axis vice, a set of 3/4-16 nuts and shafts all mounted on the lathe as the picture shows.
I use a 60 degree cutter mounted in the head-stock with a collet and draw-bar to cut the threads. The object is mounted in the chuck which is mounted and turned around the cutter with the 3/4-16 shaft.
Here is the results of the second attempt at cutting threads in a box and its lid.
First off you should use very dry wood if you are going to cut threads.
Second you cut the threads a bit loose so that it won’t bind … much!
Setting the thread depth and profile is part of the skill …
You can go to coarser threads but they wont work well in small boxes.
I can change the thread pitch just by changing the shaft.
OK, makes sense. Beyond my skill level at the moment, and it would help to own a lathe I am sure, although it must be possible to do it with hand tools somehow, some way.
Yes you can do it with hand thread cutting tools.
I have a set, tried, not enough patience and you need special woods.
You can find instructions of YouTube.
This is cheating but it gets it done and with most any wood.