Rounding the edge of a tool - Woodworking Talk - Woodworkers Forum
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post #1 of 6 Old 09-25-2017, 09:25 AM Thread Starter
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Rounding the edge of a tool

I just bought a scraper. It's an inch wide with square edges. Not long after I got it, I started to try shear scraping. My success with that makes me wonder if the tool would be easier to use with rounded edges. Any thoughts on how I might accomplish that? I don't want to just go grinding away, because I suspect an uneven edge would not be good.
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post #2 of 6 Old 09-25-2017, 09:47 AM
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Are you writing about the corners of the tool? If not what edges?
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post #3 of 6 Old 09-25-2017, 01:14 PM Thread Starter
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I meant the edge that would rest on the tool rest when it was being used in shear scraping mode. Similar I think to the way the edges of a skew chisel are rounded.

Hopefully I did a better job of describing it in the attached sketch than I did in my original post.
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post #4 of 6 Old 09-25-2017, 11:22 PM
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I think a belt sander would work best so you can have contact along the entire length. A fine grit, light touch, as you roll it gently.
My second choice would be to clamp it in a vise and use a random orbit sander to run up and down the length... with fire grit you should be able to control the rounding easily.
I assume you will only round the bottom edges and they shouldn't need to be fully rounded like the short point of a skew. Each bottom edge rounded about the diameter of a pencil lead will be round enough to not dig into the rest. If it is not enough for you re-do and take just a little more off.
I agree it would be difficult on a 3/4 -1" grinder sliding it across and rotating and getting a smooth edge over the length.
I have rounded all of mine slightly.

They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety. Benjamin Franklin
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post #5 of 6 Old 09-26-2017, 09:32 AM
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not infrequently scrapers brag on about all sides being sharpened for <insert more better hype here>

would some kind of homespun holder work?
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post #6 of 6 Old 09-26-2017, 02:43 PM
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Rounding the corners would lessen drag on the tool rest.

A diamond is how coal reacts under pressure.
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