I've been trying to wrap my head around how to turn a wooden vise screw on the lathe (around 3 to 6 TPI) . I've looked at Thread chasing and a few jigs, but the have a few problems:
The thread chasing appears to only be for small length high TPI threads
The threading jigs I've found ( purchased or otherwise appear to do short distances and high TPI as well)
The router jigs appear to be a valid option but I can't find a purchased or plans for how to attach a router to the lathe bed...
I've been looking at how it's done on a metal working lathe and it appears quite simple, the main drawback on the wood lathe is the lack of a lead screw, I have debated hooking up a stepper motor with a lead screw and attaching a cross slide vise on the lathe but it just seems like this should be easier and I'm missing something fundamental....
I basically want to have a system that will allow me to turn a wooden thread ( external AND Internal ) with relative ease and not being tied to an existing lead screw for the TPI...
I hope this makes sense and someone can point me in the right direction....
Something like this is what I'm trying to make:
https://www.theenglishwoodworker.com/wp-content/uploads/2018/04/maguire-wooden-vice-screw.jpg
P.S I know I could get or make a tap and die set for wood but they are over 800 euros...
https://www.fine-tools.com/gewind.html
TL;DR is I'm trying to create a 3tpi screw vise on the wood lathe and can't figure out how to do it....