My no name Woodcraft grinder (10 year old 3/4 hp) has developed a vibration. I did accidently "wreck" when sharpening a bowl gouge with the wolverine varigrind jig. I have one 8" steel CBN wheel and the wolverine system. I use the friable white wheel for shaping on the other side. Don't know If something is bent or what. It seems the Rikon would be the best choice, but open to ideas. never had a problem with the 3/4 hp motor and was wondering if the 1/2 hp Rikon would work or if the 1 hp is required. About $60 difference in price.
Edit: is it necessary to stay with slow speed or is 3450 rpm ok?