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Shop smith sharpener problem

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Forum topic by Posty posted 09-16-2013 12:12 AM 1838 views 0 times favorited 9 replies Add to Favorites Watch
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Posty

67 posts in 1190 days


09-16-2013 12:12 AM

So I just picked up this ship smith wet dry sharpener and I got it in a package deal for a very good price. The problem I ran into is it seems there is a little runout in the main sharpening stone shaft and I can’t seem to find any parts for this. I have sent shop smith an email but no reply yet. Would I be better off trying to find someone to make a new shaft or some how fix it?


9 replies so far

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mantwi

312 posts in 1356 days


#1 posted 09-16-2013 01:02 AM

Are you sure the problem isn’t a stone that’s out of round? Before I paid to have something fabricated to fit this thing I’d get a stone dressing wheel and try to flatten it. Those water stones are pretty soft and someone who didn’t move tools around to evenly distribute the wear could easily cause excess wear on one side. Another thing is if you store the machine with the reservoir filled with water it can distort the stone. Check that stone, it’s probably the source of the problem and can be brought back into round with a little patience.

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Posty

67 posts in 1190 days


#2 posted 09-16-2013 01:35 AM

Yah the movement I’m getting is a little side to see wobble. But what would I use to flatten the stone out just to eliminate that theory?

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mantwi

312 posts in 1356 days


#3 posted 09-16-2013 01:36 PM

Take the wheel off and using a flat reference surface check the side that goes against the arbor for flat. If there is a hump in it flatten it like you would a water stone using a sheet of 60 grit wet dry sandpaper mounted on a flat surface. Remount the wheel and if the wobble is gone you’ll need to round the face with a grinding wheel dresser. I’d recommend the diamond dressers because they are wider. They are shaped like a T with a handle and a 1 1/2” surface for grinding the wheel. Here’s a link that will show you how it’s all done. It’s a Delta grinder but they are all pretty much alike. As a last resort you could buy a new wheel but you should be able to straighten this one out.
I can’t begin to imagine how anyone could bend the arbor shaft without enough force to shatter the stone so I’m betting on the stone being the issue.

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Posty

67 posts in 1190 days


#4 posted 09-16-2013 03:42 PM

Ok thanks a lot. Did u forget to post that link

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MrRon

3926 posts in 2703 days


#5 posted 09-16-2013 05:45 PM

From the picture, the stone looks quite new with little wear. I would remove the stone and check the arbor running without the stone for runout. Check the arbor flanges, that they are smooth without burrs. You have a right angle gearbox on that grinder. If the arbor feels loose, that may indicate a bad bearing. You can take it apart and if the bearings are bad, they can be replaced.

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mantwi

312 posts in 1356 days


#6 posted 09-17-2013 01:01 AM

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Posty

67 posts in 1190 days


#7 posted 09-17-2013 03:28 AM

So I started to take the machine apart, and found that wheel was cracked in two as soon as I removed the locking nut and there was a lot of calcium buildup and rust. So I think the previous owner left the water in the bowl. Anyone know where I can pick up another wet grinding wheel for this?

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mantwi

312 posts in 1356 days


#8 posted 09-18-2013 08:29 PM

You can get replacement wheels from Grizzly, Rockler, Wood craft. Just about everyone carries them, they run around $65.00. I know it doesn’t seem like it but you are fortunate, that could have caused a nasty accident if not detected. Save the old stone, flatten the sides and use it for a coarse grit water stone. It should last a long time and will offset the pain of laying out bucks for a new wheel. When troubleshooting always start with the simplest things, you usually won’t have to look very far to find a solution. Most issues are like this one or alignment problems that can be resolved without changing out a lot of good parts for no reason and lot’s of money.

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Posty

67 posts in 1190 days


#9 posted 09-18-2013 08:36 PM

Thanks. I didn’t even think about reusing the old stone.

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