Like a lot of folks here, I have the Rikon grinder with a Wolverine setup.
As expected, a lot of vibration. Trued the wheels, but that was about all. Eventually I got smart and put on a CBN wheel from Woodcutters. Really nice. I did a relatively finer grit for light touchups. HUGE improvement in vibration. But not perfect. So research time.
Like all ot the internet, a lot of sketchy stuff out there. One Way does make counter-weight washers which I bet work well, but I decided f I could just beat it to death with creativity. Besides, their kit required 1 inch openings and my wheels are al l5/8 or 1/2. Good wheels being expensive enough already.
OK, best static balance I know of is the parallel knife/axle setup. Looking around, BINGO, the rails on my Jointmaster. Raised and shimmed it for level. First I trued the wheels on the grinder. A 1/2 inch bolt and a grinder wheel bushing and I was in business. Yup. Close enough. Sure, a precision drill rod would be better, but rotating the bolt in the wheel did not change any of the results. I then used a diamond bit to hollow out a little of the disk on the heavy side. It works! I was able to get three wheels static balanced. Seems the density of the wheels varies. I did of course stand to the side when spinning it up the first time.
Results. Well, only a little better. Worth a couple hours if for just the education. I think to get a really smooth machine, I should just buy their 60 grit BCN wheel. I only use this grinder for hard steel. I use my old 5 incher for soft junk. It may be smart to get another set of the OneWay adjustable washers for the ceramic wheel as there is a couple mm of wobble. The vibration could still be from that. I have not tried adding paper shims to see if I can reduce it that way. Maybe after chores.
In hind sight, I could have ground closer to the edge of the wheels as I would never use more than an inch of them.
As expected, a lot of vibration. Trued the wheels, but that was about all. Eventually I got smart and put on a CBN wheel from Woodcutters. Really nice. I did a relatively finer grit for light touchups. HUGE improvement in vibration. But not perfect. So research time.
Like all ot the internet, a lot of sketchy stuff out there. One Way does make counter-weight washers which I bet work well, but I decided f I could just beat it to death with creativity. Besides, their kit required 1 inch openings and my wheels are al l5/8 or 1/2. Good wheels being expensive enough already.
OK, best static balance I know of is the parallel knife/axle setup. Looking around, BINGO, the rails on my Jointmaster. Raised and shimmed it for level. First I trued the wheels on the grinder. A 1/2 inch bolt and a grinder wheel bushing and I was in business. Yup. Close enough. Sure, a precision drill rod would be better, but rotating the bolt in the wheel did not change any of the results. I then used a diamond bit to hollow out a little of the disk on the heavy side. It works! I was able to get three wheels static balanced. Seems the density of the wheels varies. I did of course stand to the side when spinning it up the first time.
Results. Well, only a little better. Worth a couple hours if for just the education. I think to get a really smooth machine, I should just buy their 60 grit BCN wheel. I only use this grinder for hard steel. I use my old 5 incher for soft junk. It may be smart to get another set of the OneWay adjustable washers for the ceramic wheel as there is a couple mm of wobble. The vibration could still be from that. I have not tried adding paper shims to see if I can reduce it that way. Maybe after chores.
In hind sight, I could have ground closer to the edge of the wheels as I would never use more than an inch of them.