"He who marches out of step hears another drum." ~ Ken Kesey
My wife has one for baking and it is awesome. Not sure how it would work for ink though. The way the bowl attaches might make it hard to use with ink that hasn't been scooped out of the bucket and into the bowl. I think a drill press would likely be a better option. Try and see though if its free!
How slowly can these be run? Too fast = heat and/or potential redecorating of your walls and ceiling.
they run a lot slower than a drill press. You can use them to slowly kneed bread for example.