Tonight I have put together a lathe chuck stop. Took me a little over 1 hour, do not understand why I waited years to make something so useful. Thought to share it here, maybe it can be useful for others….or not….
My Harrison lathe has a MK4.5 taper in its spindle nose. I happen to have 2 sleeves MK4.5 to MK3 taper. Took the worst of both and reduced it such that it just a little out of the lathe spindle nose
Have some old machinable MK3 adaptor
and cleaned it up in the lathe with some emery paper (I always cover the ways when using emery paper)
Mounted it in the adaptor sleeve and marked the length
Cut to size with the bandsaw
Drill and tap M8 for about 30mm deep
Turned down a piece of steel of 12mm to 8mm and treaded it M8
The other side I turned down to 7.5mm (the crank taps for my V8 engine will be 8mm) and made a spare one for future use. Below it is mounted in the spindle nose
And a view with the chuck mounted
Finally a family shot of the parts
I know there are much better and more versatile design but for me this will do and the goal was to make something quick!
Regards Jeroen