Convex Spokeshaves?

Re: Convex Spokeshaves? *LINK*

Darrell in Oakville

>I'm not sure if you mean round bottom shave when you say convex, or do you mean something like a travisher? Have you looked at Lee Valley's offerings? I have their low-angle shave, the wooden shave kit and the concave shave. Use'em all the time.

Darrell

Wood Hoarder, Blade Sharpener, and Occasional Tool User


Lee Valley Spokeshaves

Re: Convex Spokeshaves?

William Duffield, on the Cohansey

>St. James Bay Toolworks makes and sells small convex bottom shaves, and also violin maker's planes, with even tighter radii. Other alternatives include the Stanley 100 1/2 Model Maker's Plane, which you would have to hunt down on the old tool market, its Woodcraft reproduction, in bronze, and the new Lie-Nielsen version. Note that both the longitudinal and latitudinal radii of the L-N are significantly larger than the other 100 1/2 models.

In the "good old days", they realized that no one was going to look at the bottom surfaces that I think you are wanting to be shaping, only at the front surfaces, and at the edge of the bottom profile. Therefore, the profiles were usually defined with carving gouges, and the bottoms rough cut with a turning saw and relieved with gouges and other rough tools.

Re: Convex Spokeshaves?

paul womack

>I'm thinking about using a convex spokeshave for finishing the undersides of the ends of a tabletop

Since this is a long straight cut, I'd recommend a moulding plane; in this case a generic moulding plane, called a "round" (which cuts a hollow).

Alternatively, remove as much waste as possible with a straight bladed plane (e.g. #5), then work the hollow with gouges and/or a scratch stock .

BugBear

Re: Convex Spokeshaves?

Denny

>Darrell,

Actually, I am looking for something closer to a travisher. I have a LV round bottom shave, but I'm trying to end up with a long concave edge. I think some of the suggestions below are probably just what I need...

Thanks,

Denny

Re: Convex Spokeshaves?

Denny

>William,

I think your suggestions of St. James Bay Toolworks or L-N might be just right, especially after seeing some of the prices for the old Stanley versions. I'd like the bottom surfaces to be refined, especially because I'd like to be able to use a similar approach on taller pieces with overhanging tops, where they would be very visible.

Thanks,

Denny

Re: Convex Spokeshaves?

Denny

>BugBear,

I might give it a try with a round, any recommendations on where best to get one (other than ebay?)

I already tried something close to your other idea. I beveled the edge of the wood and then tried to carve out the hollow with a curved-edge hand scraper. It worked great when I tried it along the grain, but I couldn't control the tearout when I used it cross grain.

Thanks,

Denny

Re: Convex Spokeshaves?

paul womack

>. It worked great when I tried it along the grain, but I couldn't control the tearout when I used it cross grain.

If you're into geometry and shop made tools, you might try a skew blade scratch stock with an elliptical cutter!

BugBear