Thinking of getting something like this for my Delta 8 in. bench grinder. Anybody have any experience with something like this? Getting into knife making and I figured this might be better than my cheapo HF belt grinder and cheaper than some of the task specific grinders out there. Does the arm (or whatever it's called) swing up so the belt runs vertically or would I have to mount the grinder to the wall or something to get it to do that? Does it matter which side of the grinder I attach the belt to (If I want the belt to run the opposite direction, for instance)?