Author Topic: Spokeshave blade sharpening  (Read 5758 times)

Offline Eric Smith

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Spokeshave blade sharpening
« on: July 19, 2012, 01:15:59 AM »
I have a wooden spokeshave I bought on Ebay. It has a 3" blade. It is slightly convex, very slightly. I have sharpened it using my pocketknife sharpening skills  ;D and have tried using it to shape my buttstock blank. However, either my technique is faulty or my blade is still not  sharp enough. It tends to "bite" and not produce nice long shavings. Any advice on sharpening or using the thing would be helpfull.
Eric Smith

Offline Acer Saccharum

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Re: Spokeshave blade sharpening
« Reply #1 on: July 19, 2012, 04:39:11 AM »
The blade should be set to take a very shallow cut.

The blade should be well supported from behind. If the backer is worn, and the blade rocks the slightest bit, you'll have chatter and grab.

The throat opening between blade and sole ideally should be a small gap, 1/32 or less for hard maple with curl. I doubt you'll get a spokeshave with an adjustable gap, which is rare on a spokeshave.

Maybe your sharpening angle is too steep?
Tom Curran's web site : http://monstermachineshop.net
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Offline Curtis

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Re: Spokeshave blade sharpening
« Reply #2 on: July 19, 2012, 05:35:45 AM »
Have a look at this, lots of good info.  Scroll down the page near the bottom for sharpening advice.

http://www.ncworkshops.com/sharpening_tips.html

And of course then there's the video.



and yet more:

http://www.woodenspokeshave.com/about-wooden-spokeshaves/sharpening-and-care/

Hope this helps,

Curtis
Curtis Allinson
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Sometimes, late at night when I am alone in the inner sanctum of my workshop and no one else can see, I sand things using only my fingers for backing

Online rich pierce

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Re: Spokeshave blade sharpening
« Reply #3 on: July 19, 2012, 02:16:46 PM »
It also takes practice and a steady hand.  Teaching a friend to make bows, I was amazed that he could not become adept at the spokeshave, which works great for me.  I think he was rocking his wrists or something, but never was able to correct it.  I use a good bit of downward pressure and a very light cut.
Andover, Vermont

Offline Eric Smith

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Re: Spokeshave blade sharpening
« Reply #4 on: July 19, 2012, 02:28:47 PM »
Thanks for the tips and links. I can allready see a lot of things that need correcting.
Eric Smith

billm

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Re: Spokeshave blade sharpening
« Reply #5 on: July 19, 2012, 03:26:09 PM »
I think woodcraft has a jig that will work.I havent bought it yet but its on the list.It can also be adjusted for the micro bevel for you chisels.If that fails they will sharpen it in the store for you.Hope this helps. A spokeshave is the go to tool  for sure.Also the really little, cheap ,like 7 bucks, stanley plane is pretty good for alot of stuff.

Offline Chris Treichel

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Re: Spokeshave blade sharpening
« Reply #6 on: July 19, 2012, 04:33:07 PM »
I like to polish the edges on my cutting tools with a modified strop after removing the burr by pushing it into a piece of wood.

I take a piece of scrap maple, glue on a piece of thin tooling leather (vegetable tan) to the wood.

To use it, wet the leather and rub polishing compound into it (red compound works well). Then you can polish the edge of the tool. 

For concave tools I carve the maple to shape and glue the leather etc... presto curved strop ish thing.

The cutting edge should be mirror bright and cut very well. 

Offline David R. Pennington

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Re: Spokeshave blade sharpening
« Reply #7 on: July 19, 2012, 05:30:46 PM »
no amount of technique can make up for poor sharpening. I like to test an edge on my thumbnail. I draw the blade across with only the weight of the blade bearing down. If the edge bites in all along the length it is sharp. If there are any dull spots the blade will skate over. My wooden spokeshaves are among my favorite tools. The blade in mine adjusts with spring tension in the wood and is easily fine tuned with  light hammer taps.
Remember the blade on the spokeshave is only beveled on the backside and the outside should be flat, like a plane iron. I have seen them ruined by someone trying to sharpen them like a pocket knife and put a bevel on both edges.
VITA BREVIS- ARS LONGA

William Worth

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Re: Spokeshave blade sharpening
« Reply #8 on: July 19, 2012, 05:37:20 PM »
Is it bevel up...or bevel down...?

tuffy

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Re: Spokeshave blade sharpening
« Reply #9 on: July 19, 2012, 06:03:44 PM »
The bevel should be up, facing the plane. The flat side should face the wood being worked.

       CW

Offline Eric Smith

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Re: Spokeshave blade sharpening
« Reply #10 on: July 19, 2012, 06:36:44 PM »
Have a look at this, lots of good info.  Scroll down the page near the bottom for sharpening advice.

http://www.ncworkshops.com/sharpening_tips.html

And of course then there's the video.



and yet more:

http://www.woodenspokeshave.com/about-wooden-spokeshaves/sharpening-and-care/

Hope this helps,

Curtis


These are very good links. I even leaned a thing or two about drawknives by following them.
Eric Smith

Offline smart dog

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Re: Spokeshave blade sharpening
« Reply #11 on: July 19, 2012, 06:59:36 PM »
Hi,
Is your spokeshave blade shaped like a short plane blade or is it a narrow blade situated between two threaded posts that go through the handle (my antique spokeshave is such).  If the former, the bevel should be sharpened (and only the beveled side)  like a plane blade such that the bevel is flat and even all the way across the blade.  The bevel angle is often 45 degrees on a spokeshave.  Use a good flat stone at least 2" wide and place the blade so that the bevel is flat on the stone.  Simply stroke the beveled side forward over the stone making sure you do not rock the angle of the blade.  The slight convex shape is accommodated by slightly rocking the blade side to side as you stroke. Go slow and do not push too hard.  I currently do not use stones rather a flat surface and sandpaper.  I work my way up to 3 micron 3-M sanding film to get a razor edge.  If the spokeshave is set up as my latter example (a tool that is really called a contour shave), you can elevate a stone on top of similar sized block of wood or in a narrow-jawed vise so that the threaded posts can stradle the stone.  Then stroke the bevel on the stone.  I do this using sandpaper placed on the stone.  The paper is wet so it stays in place as I stroke.

dave   
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Offline Eric Smith

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Re: Spokeshave blade sharpening
« Reply #12 on: July 19, 2012, 09:26:38 PM »
Sandpaper is an Item I have not really explored. I have some 280 and 160 I use a little, but I dont have any really fine grit for sharpening, polishing, wood or metal. Didn't see any thing really fine at the local store. Where is a good place to buy some online?
Eric Smith

BrianH

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Re: Spokeshave blade sharpening
« Reply #13 on: July 20, 2012, 02:25:05 AM »
i've found the best place to find the finer grits is a auto parts store that sells bodyworking supplies

ottawa

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Re: Spokeshave blade sharpening
« Reply #14 on: July 20, 2012, 06:03:13 PM »
the sandpaper idea is a good one and easier to replace then a worn stone I use 400 and 600 wet dry at work to keep my work knife sharp I cut a lot of fiberglass .