Short sharpening video - Woodworking Talk - Woodworkers Forum
 
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post #1 of 12 Old 05-16-2011, 10:09 PM Thread Starter
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Short sharpening video

I threw this together last night to help explain how you correct a bad grind on a bowl gouge. I also added sharpening hollowing tools.

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post #2 of 12 Old 05-16-2011, 10:50 PM
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Thanks John -- wonderful presentation

What kind of steel are those hollowing tool and rebating tool made of? I bought a piece of steel keystock from a local hardware store -- could I use that to make something to cut dovetail recesses for the chuck jaws?

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post #3 of 12 Old 05-17-2011, 07:45 AM Thread Starter
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Key stock isn't high enough in carbon content to be any good for turning tools. It will work but won't hold an edge very long. The dovetail rebate tool is a screwdriver. You can't see it in this video but the end is bent about 25 degrees so I can reach in and turn a rebate opening with the tailstock still in place.
The other hollowing tools are 3/16" High Speed Steel metal cutting bits. You can buy them for 75 cents each. They come 3" long so you have to break them into shorter lengths. make a notch in each corner where you want them to break. The put the metal in a vise and wrap a rag over it. Then hit it with a hammer and it will snap where the notches are. 3/16" square stock fits almost exactly in a 1/4" hole. I simply glue them in place with CA glue. You an heat the metal and pull them out for replacement. This one in the move has a setscrew in it. That's because I have 2 other tips that I can put in for demonstration purposes.
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post #4 of 12 Old 05-17-2011, 09:39 AM
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thanks John

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... the end is bent about 25 degrees so I can reach in and turn a rebate opening with the tailstock still in place ...
oooh, now *that* is sneaky

I almost bought a few HSS bits from an eBay seller a couple of weeks back, but settled on some 3-sided carbide inserts -- planning to make one of those hollowing tools.

Maybe when I get done with that experiment, I'll think about a dovetail-recess tool -- when I try one thing at a time I seem to get further than having many going at once!

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post #5 of 12 Old 05-17-2011, 10:30 PM
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Thanks, John. Easy to understand as always. Where do you get those 3/16" cutters?
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post #6 of 12 Old 05-17-2011, 10:48 PM Thread Starter
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You can buy the HSS cutters at any place that sells metal tooling. Enco, MSC, and Grizzly are where I usually get them. They run about 75cents to 1.50 depending on how many you buy and where you get them. Unfortunately shipping can get expensive.
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post #7 of 12 Old 05-18-2011, 10:24 AM
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Excellent video, John. Sure you're not a machinist? That's almost identical to sharpening HSS blanks for cutting steel, etc.

Harrison, at your service!
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post #8 of 12 Old 05-18-2011, 11:41 AM
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Thanks for posting the video. Easy watching!
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post #9 of 12 Old 05-18-2011, 07:16 PM Thread Starter
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Harrison I am learning to be a machinist. At the current rate I figure it will take about 90 years. Your right about the tool only I would add some relief on top. :)
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post #10 of 12 Old 05-18-2011, 10:48 PM
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Thanks for the video John. BTW, you can also get HSS to use at Harbor Freight if anyone has a store near them.

Tim
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post #11 of 12 Old 05-19-2011, 11:34 AM
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Quote:
Originally Posted by slatron25
Thanks for the video John. BTW, you can also get HSS to use at Harbor Freight if anyone has a store near them.
I do have a store close by. I have never seen any kind of HSS stock of any kind. Am I missing something?

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post #12 of 12 Old 05-19-2011, 12:18 PM
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I do have a store close by. I have never seen any kind of HSS stock of any kind. Am I missing something?
In my store there is a wall behind all of the larger power tools full of different cutting things. They are in a small box about 5" long so it can be hard to find.

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