Gentlemen, Thank you for your assistance.
The lathe is a very simple Denford slantbed running Mach 3.
I am led to believe it will work quite effectively with a £2.50 Halls effect switch and a magnet on the spindle. After all your posts. I hope you will forgive the lack of sophistication (for the moment) I just have to try it, as have just seen a little Emco 5 conversion running Mach 3 threading. With the assurance that it has not missed a beat, having been programmed from F360 and a little tweak on the post processor. Just a couple of 3d prints required to hold things in situ.
Since I do not use the lathe that frequently, a Heath Robinson car boot solution. If I can get it to work, might suit the budget very well?


Chaz - Very interested in Centroid Acorn experience. Been studying it for while. Looming pile of vertical router bits laying in the corner looking for a control solution.