how should I sharpen a scraper? - Woodworking Talk - Woodworkers Forum
 
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post #1 of 7 Old 04-24-2011, 04:38 PM Thread Starter
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how should I sharpen a scraper?

I've got a round-nosed scraper that I haven't sharpened since I bought it (as part of a lot with 4 other turning tools).

From what I understand, I ought to aim to get a burr on the top edge of the scraper ... but my grinder turns towards me, which I think would create a burr on the bottom edge if I rest it on the tool rest as I normally would (for example, to sharpen a skew or a roughing gouge).

So how should I sharpen the scraper?

Thanks!

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post #2 of 7 Old 04-24-2011, 05:35 PM
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The bur will come no matter what direction you are grinding. At least as long as it is nice and flat on the cutting side.

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post #3 of 7 Old 04-24-2011, 06:58 PM
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Was going to try and describe, but thought it would be easier with pics. 1st pic is tool on it's side to show angle. 2nd shows platform angle. 3rd shows tool against wheel...shadows make it look like there is a gap but the tool is flush to the wheel. Hope this helps.
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post #4 of 7 Old 04-24-2011, 10:05 PM
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Sawdust,
You're doing it right. The only thing I might add is to get a wheel dressing tool and keep a nice fresh edge on your wheels. Also, a soft wheel won't take off a lot of metal, but still leave a nice burr.
Mike Hawkins
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post #5 of 7 Old 04-24-2011, 10:07 PM Thread Starter
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thanks everyone -- and especially for the pix

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post #6 of 7 Old 04-24-2011, 10:36 PM
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.....

Harrison, at your service!

Last edited by H. A. S.; 04-24-2011 at 10:38 PM. Reason: Wrong post....
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post #7 of 7 Old 04-24-2011, 11:04 PM
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What I do is polish off the burr before I grind another one. It gives a more consistent burr. Grinding the way it is shown will produce a burr on top. The way it was explained to me is the metal builds up on top of the edge.
If you want to try different burrs polish off the top with a diamond hone and then run the hone up the face of the bevel. Different grades of diamond hones produce different size burrs.
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