Spoke Shave

[Jerry Thompson]

I have had Woodjoy round spoke shave for years. Every year or so I drag it out and try to get an edge that will work on hard woods. These woods would be maple, cherry and walnut.
I can get curly fine shavings from pine but then it all goes down hill with, at this time, cherry. It chatters and tears in places. I have it set to a very fine cut but it is still not sharp enough.

I have spent an untold amount of time trying to get it sharp but I just as well be spitting into the wind.

The fists water stone I use is an 800 then onto a Shapton 8000. This works well for my planes and chisels but not the little shave blade.

Any pointers?

[Luke Dupont]

I just came across a video on sharpening spokeshaves by Paul Sellers yesterday. He has a really neat method:
https://www.youtube.com/watch?v=sw1JGEbKgCw

Apparently, sharpening spokeshaves is something a lot of people have difficulty with.

I just bought a blade to make my own wooden spokeshave with, so I'm sure I'll be able to identify with your troubles soon


Edit: Woops and double woops:
1) I meant to link to this video/method; I think it's better: https://www.youtube.com/watch?v=zOJVXRQLUOI
2) I just noticed you said "round spokeshave;" do you mean the sole is round, or do you have one of those with a concave blade for chairlegs or such?

[Mike Henderson]

The round spokeshaves are more difficult to use than a spokeshave with a flat bottom. There are many good flat bottom spokeshaves but the LN Boggs is an excellent one.

Mike

[Malcolm Schweizer]

800 to 8000 is a huge jump. You need a 3000 and 5000 to transition.

[Matthew Hutchinson477]

800 to 8000 is a huge jump. You need a 3000 and 5000 to transition.

Agreed. An 8000 grit stone may not eliminate all the scratches from an 800 grit stone. That may be part of the issue. When you examine the bevel closely, does it appear finely polished? Can you see any sort of scratch pattern in it? If you answer "yes" to the last question then your blade is not sharp enough.

[Jerry Thompson]

I am going to give it a go this weekend. I have several curved surfaces to do on a cherry piece that I cut out on the BS. I will report back.
Thanks to everyone.

[Nick Olimpi]

Could also be how you are holding it, are your thumbs out on the handles or in closer to the blade? If you place them near the center it can help cut down on chatter. Also pushing or pulling can effect it, as well as skewing the blade. just some thoughts other than sharpness.

[Phil Mueller]

Thanks for posting Luke...that's a neat little jig for sharpening.

[Jerry Thompson]

Well I have met with some success. I watched the sharpening video with his jig setup. I tried it and it did not work for me as my left arm does not rotate enough to keep from being awkward.
So, using some of the video aspects, I set up a pine board on end in my vise. I jointed the end flat and glued a small strip of #180 sandpaper to it. I place the blade on this and used two push pins to hold it in place correctly. Then I snugged it up with two sewing machine needles.
I applied 240 sticky sandpaper to an industrial wooden paint stirrer. These are the big thick ones uses for big buckets. I then applied 40u 3M paper and two others of their real fine stuff to another stirrer.
I was able to use the 240 to get it all even at about 25d. I then went down through the grits and finished with honing compound on a maple board. It should be noted that I did flatten the back.
Then the learning curve started. I used it on cherry with the grain on a strait edge and I had it set too thick. I finally got the depth set ok and now I am in the process of learning how to do inside curves.
I might add that I found it easier to do the sharpening by holding the sticks with the abrasive on them and sliding the blade back and forth. The 3M paper removes metal fairly fast.
Now does anyone have any pointers in using a circular shave other than practice, practice....?

[Bill Houghton]

Always pull a round-bottom shave of any kind toward you. Your hands and wrists rotate in way better than they do out, and you'll have more control. And, of course, but you know that, always run down-grain as you go around the curve.

[Mike Holbrook]

I think Mike hit the nail on the head. I have quite a few spokeshaves, 4-5 from WoodJoy. I still have difficulty using any spokeshave, including my WoodJoy spokeshaves, with rounded surfaces. The rounded edge can change the angle of attack drastically and quickly before you realize it. When the blade digs in instead of taking a thin shaving it will feel like the blade is dull. Glenn at WoodJoy was the one who originally made me aware of the greater skill required to use a more rounded shave. Flat shaves hold more moderate angles of attack much more reliably. The advantage of the rounded surface is one can change the amount of wood being removed with slight changes in the angle of attack, learning to use this feature of those shaves isn't all that easy though. I would suggest practising with a spokeshave with an adjustable depth setting and or a lesser curved surface before trying to use a round shave.

[Jerry Thompson]

Always pull a round-bottom shave of any kind toward you. Your hands and wrists rotate in way better than they do out, and you'll have more control. And, of course, but you know that, always run down-grain as you go around the curve.

Would you please elaborate "always run down-grain as you go around the curve"?

[Bill Houghton]

Would you please elaborate "always run down-grain as you go around the curve"?

It's the same concept as bench planing a surface: you plane a surface so that the grain is running up out of the wood in the direction you're planing, so that you're not trying to raise a splinter with your plane. With spokeshave work, you're often trying to put a curve on wood with straight grain, or at least grain that's not following the curve, so you have to pay close attention to where the grain runs out of the curve, and shave so that you're not trying to raise a splinter with the shave. If that's not clear, I'll try to find or do a drawing.

[Jerry Thompson]

Thanks Bill. I get the idea. I'll have a go at it soon. I'm getting enough cherry shavings to do a rack of baby backs.

[Jerry Thompson]

I have practiced and practiced with the curved shave and I am now about 90% confident in using it. I made a mistake of putting a micro bevel on it and that seemed to reduce the relief angle and it would plug up. I now have it at 25d and very, very sharp. The blade edge can hardly be felt sticking out of the sole. It sure takes easy fine shaving in cherry and I have had no tear out.
On reflection I was trying to take rough band saw edges down to the line. I left some big bumps in my practice pieces and I should have pared them with a chisel. When I do that it works like a charm.
I ordered another Woodjoy with Glenn at the company helping me. I am looking forward to using both types in the future. It sure beats sanding using the drill press.