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Old 09-23-2015, 01:19 AM   #1 (permalink)
 
Join Date: Feb 2015
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Default Your Choice for Grinding Wheels

I bought a relatively inexpensive slow speed grinder. It came with really bad wheels with no bushings. I tried to balance the wheels, but I think most of the issues are with the lack of bushings and chips and unevenness in the arbor holes.

I verified that I have about 1/1000th of runout or less on the arbors so I am confident that the issues are with the wheels.

Having said that, I'd like your opinion on a pretty rock solid setup. What's your choice of wheels (as I will need two) and bushings?

Has anyone tried the Raptor bushings Link here:
https://www.woodturnerscatalog.com/p...ng-2-Piece-Set

Thanks everyone for participating in my survey
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Old 09-23-2015, 08:23 AM   #2 (permalink)
 
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Quote:
Originally Posted by sequoia View Post
I bought a relatively inexpensive slow speed grinder. It came with really bad wheels with no bushings. I tried to balance the wheels, but I think most of the issues are with the lack of bushings and chips and unevenness in the arbor holes.

I verified that I have about 1/1000th of runout or less on the arbors so I am confident that the issues are with the wheels.

Having said that, I'd like your opinion on a pretty rock solid setup. What's your choice of wheels (as I will need two) and bushings?

Has anyone tried the Raptor bushings Link here:
https://www.woodturnerscatalog.com/p...ng-2-Piece-Set

Thanks everyone for participating in my survey
Thanks for the link to the Raptors, I'll have some please.
I had trouble with my slow speed grinding wheel running off center too. No amount of contacting Norton would get any results. I finally made some oak bushings which worked just fine and are still on the grinder.
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Old 09-23-2015, 11:46 AM   #3 (permalink)
 
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I went and got a diamond faced grinding disc from Harbor Freight .... it was very thin and somewhat flimsy, but decently priced. It came in the kit meant to be used with their electric chain saw sharpener.

After I got it in hand, I went ahead and grabbed some scrap oak and glued some small sections together .... Drilled a center hole and dropped in a 3/4 x 16 nut. I left enough of the metal showing that it would easily register against the shoulder of my headstock to ensure it will run true, and epoxied it in place. Next step was turning the wooden faceplate round and true up the face.

Finally, I drilled 4 small holes in the metal disc, and screwed it to the front of the faceplate .... I toss it on my lathe when I want a diamond grinding wheel with variable speed control. I only get 1 choice in grits, but it works great for me. :)
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Old 09-23-2015, 01:12 PM   #4 (permalink)
 
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I built a "sharpening station" about a year ago with two slow speed grinders. I have three norton wheels and a CBN. I tried balancing the wheels with several types of bushings. The raptor bushings were the best by far.....I even had a terrible experience with the "bushings" in the balancing kit of the one way set. As soon as I got the raptor set, I had NO issues and they both balanced like a dream.
Mike
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Old 09-23-2015, 01:20 PM   #5 (permalink)
 
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Cubic boron nitride wheel. About 180 to 220 rating for sharpening.
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Old 09-23-2015, 02:01 PM   #6 (permalink)
 
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I have a Tormek, a few months ago I bought a Rikon slow speed grinder and two CBN wheels. I wish I would have done this years ago. I will never use the Tormek again. While not a joy, sharpening is so much easier and I do it way more now.
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Old 09-23-2015, 05:43 PM   #7 (permalink)
 
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Pretty quickly gave up on my 6" bench grinder. My Craftsman 2x42 belt grinder works so much better. A couple seconds on a 120 grit belt give a nice edge. One day I'll mod it to a variable speed, but even with the fast speed, it works. I have a HF 1x30 that I keep a leather belt on--it strops tools to a great edge.

Regards,
Michael
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Old 09-23-2015, 06:01 PM   #8 (permalink)
 
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I recently purchased a set of CBN wheels for my grinder and am very impressed with them. I noticed an improvement in grinding immediately. I bought them from Woodturners Wonder. He has a great price and they are guarranted for life. He now has a wheel for the
Tormek.
Craig Chatterton
Puyallup, WA
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Old 09-23-2015, 09:16 PM   #9 (permalink)
 
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Quote:
Originally Posted by mecompco View Post
Pretty quickly gave up on my 6" bench grinder. My Craftsman 2x42 belt grinder works so much better. A couple seconds on a 120 grit belt give a nice edge. One day I'll mod it to a variable speed, but even with the fast speed, it works. I have a HF 1x30 that I keep a leather belt on--it strops tools to a great edge.

Regards,
Michael
I use a 1 x 30 as well, with a 5 inch disc that I modded out for a buffing wheel. That makes for a very nice polished bevel too! :)
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Old 09-23-2015, 09:33 PM   #10 (permalink)
 
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[quote=mecompco;1797471]Pretty quickly gave up on my 6" bench grinder. My Craftsman 2x42 belt grinder works so much better. A couple seconds on a 120 grit belt give a nice edge. One day I'll mod it to a variable speed, but even with the fast speed, it works. I have a HF 1x30 that I keep a leather belt on--it strops tools to a great edge.

Regards,
Michael[/quote

I also use a Craftsman 4" belt sander along with a sharpening jig made from Cap'n Eddies plans. I also sharpen my metal cutting lathe tools on a belt sander. I've given up sharpening on a grinder long ago.
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