"Pete C." fired this volley in news:5196b2fe$0$4550
:

It's coming when I eventually convert to PC/LinuxCNC controls. A feed
screw for an expeller oil press is on the A axis project agenda.


Pete, I know it's fun to just "make stuff". But I suspect that by the
time you buy the stock and spend a cutter and hours of machining time...
that you'd have been able to buy an Acme screw for less.

I have built several 'dough extruders' for pyrotechnic manufacturing.
There's just no recognizable benefit (if costs count) for making a lead
screw. Too many manufacturers make them for _really_cheap_.

Lloyd