Tom, what radius are you trying for? What type of grinder do you have? I have used my KMG with a drilled and tapped plate mounted to the L.H. side of the bar and placed 1 or 2 idler wheels to keep the belt out of the way. You will have to slide the bar in to accomodate the shorter belt length. You can use about 270* of the small wheel diameter if needed. Send me an e-mail and I will send a drawing so you get the concept.
rushknives@gmail.com