Posted by Blue Heeler on 31/05/2019 21:58:13:
How often do you oil your lathe ways?
When they need it, which is often.
Lubrication is an obvious reason, but – in my workshop – maintaining cleanliness is probably more important.
Steel and aluminium swarf aren't a major problem compared with brass and cast-iron. But it pays to get rid of steel fragments laid on the ways in case it rusts – Iron Oxide is an abrasive. Brass often comes off in fine particles that get stuck into moving parts to create a kind of junior sandpaper. Cast-iron is the worst; cutting it creates a fine powder some of which – like bits of hard skin or casting sand – make a decent grinding paste. And it's filthy. A good way to clean the ways is to wipe them off regularly with generously oiled paper towels or lint free cloth.
When the lathe is going to be laid up for more than a few weeks, I treat it to some proper Way Oil, which is sticky. Otherwise, it gets plain oil, Lawnmower Oil at the moment. I avoid fancy motor oils because of the additives, but I doubt they make much difference.
I'm not as obsessive as the above might suggest. My lathe is Chinese and it's never going to be a much loved heirloom!
Dave