shop notes #61

When I was in Phoenix, I had that issue. I wanted to build the sharpening system from the drill press. Of course, I didn't have a drill press at the time. Now I do and we've moved. I've lost that issue. Is there someone that could scan and email that particular article?
snipped-for-privacy@wavecable.com
As an alternative, I'll take any and all suggestions on sharpening. I've yet to actually do it (sharpen anything other than the lawn mower blade - and rough at that!) so any suggestions, hints, books, etc would be welcome.
pete
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On Mon, 08 Nov 2004 20:34:27 -0800, Pete Martin

unless the drill press is way stouter than today's typical taiwanese morse taper chuck mounted machines it'll make a lousy sharpening machine.
this book is a good place to start: <http://www.leevalley.com/wood/page.asp?page2991&category=1,46096,46107&abspage=1&ccurrency=2&SID=>
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Is that anything like a wheel power strop? Leather disc?
Alex
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Right. A wheel is built up; sandpaper(?) applied around the circumference; leather on top from what I can see from the picture. I went to a yahoo site I think. That volume is out of print.
AAvK wrote:

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I made one and almost finished. It's 2 1/4" thick, X about 7 1/8" across the face. I used two 3/4" plywood layers and the top layer is 3/4" melamine particle board for flatness. Cut them on a band saw with a simple jig.
I had the arbor cut by a machinist, 5/8" cold roll rod with a standard 5/8" threading for 6", and lathed down to 1/2" thickness for a 1 1/4" distance for the chuck end. 10" total length, $25.
I bought horse butt leather (very tough!), I cut the disc using a pen scribe with a carbide tip (General) (the roundness of that tip keeps it from cutting off track), then finished the cut with a pocket knife when the kerf was thin enough. I used the circumference of the finished disc to guide the cutting. eBay: 8113490412 is the only place I've found it, and that seller's website: Brettuns Village.
Around the circumference will be a strip of the rougher side of the same leather, at about 1/2 the depth and maybe something else for the other half. This will be roughly 24" long! There are the different bars of rouge, green and white compounds to consider so it might be all leather on the circumference side.
The only adhesive will be a light amount of 3m super 77. You can also make discs of 1/4" thin PB (what's it called, clipboards are made of it, dark brown) that are removeable, maybe using hook and loop (velcro) to attach them. That way you could make any number of abrasive discs, just for the top. With this idea you can also flip the whole disc over on the arbor.
The idea will work fine with a drill press as long as you can get the speed down as low as is possible to avoid bluing the metal with heat and destroying the temper, currently I can't do that but I will risk trying it, 600 rpm. The most important thing to work out is the arbor hole MUST be *perfectly* centered, or it will wobble and not be good for drill press.
I did it all out of my own strange head, you don't need a "design". Just measurements.
Alex
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http://www.shavings.net/SCARY.HTM

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