I am just getting into some turning but I will most likely use a 2" belt grinder with any number of grit belts for sharpening.
It is sold through Grizzly as a knife grinder and I have made several knives from stock removal with it. Down to micron level belts you can mirror polish tool steel.
My learning curve is already paid for on that machine. I have access to a big slow wet grinder also that I may try.
Joe
JC Custom WoodWorks
For best results, try not to do anything stupid.
"So this is how liberty dies...with thunderous applause." - Padmé Amidala "Star Wars III: The Revenge of the Sith"