I have not followed the entire thread, so excuse any repetition.
But the idea of leaving oil on the mill while rolling seems
problematic. Oil is sticky and will trap any foreign particles
or dust and then push it into the metal or even worse, into the
rollers. I can understand using oil when not in use, but for
rolling, keep my rolling mill dry.
The Academy has salt water within 5 miles North, West and East
and yet rust has never been a problem on the mill. Once in a
while I clean the rollers with a solvent, then rub them with
flat mounted 4/0 polishing paper bringing the surface back to a
sheen. The real battle has been the ocassional non-thinker who
tries to roll something hard like steel or titanium…ouch!.
Revere Academy of Jewelry Arts
760 Market Street . Suite 900
San Francisco . California . 94960 . USA
tel: 415 . 391 . 4179
fax: 415 . 391 . 7570