I spent the weekend at the Connecticut Valley School of Woodworking, teaching 13 students to carve oak patterns…but I forgot my camera. One design I hoped to include, but ran out of time for, is this “nulling” or arcading pattern. It’s very common, there’s lots of variations on it. This is my recent version, in walnut instead of oak. This example is only about 3 1/2″ between the bottom and top margin.
Here’s how I carved a section of it today, after unpacking. This pattern has no free-hand aspect of it, very different from my usual work. All the elements are struck first with an awl, square and marking gauge. Spacing is marked off with a ruler and compass/dividers. Once I know the spacing (that’s some trial & error, based on the size of your stock, and the tools available) – I strike the chisel work to define the spaces between the arches.
Then I use my #7, 3/4″ wide gouge to strike the tops of the arches and the peaked leaf that falls behind them. 3 strikes of the gouge outline the tops of the arches. There’s a marking gauge line at the top & bottom of these, so they all line up properly.
This leaf tip that fits behind them starts about 1/2 way up one side of the arch, and hits a centerline struck through the chiseled portion.
Once the outlines are struck, I use the chisel with its bevel down to chop these sections. Sometimes I have to go back & forth between the vertical strikes and the beveled ones to get the chip out.
Then comes some background removal. I use the #7 to chop behind its original strikes.
Then a #5, about 1/2″ wide to smooth off this background. It leans down from the top margin to the arches/leaves.
Then I hollow the leaves with the #7. Makes them look like they fall behind the arches a bit.
Now to hollow the arches. I start with a narrow, deeply-curved gouge. (old, no before they were numbered. It’s between a #8 & #9.) Two strikes define the bottom of the hollow. Previously I struck inner margins for this hollow.
I chop right behind this to remove a chip. This will help protect the bottom solid bit when I finish hollowing.
Now a larger gouge hollows out the whole thing. This takes a few cuts. I don’t go to the full depth in one go. In the end, I want this tool to hollow all the way to the outlines I struck.
Here is the pattern after the shaping. But it looks pretty blank…
Gotta fill all the blank spaces. Start with a small #7 to chop details in the leaves.
A straight chisel to highlight the peaked bits.
A large gouge just strikes an incised line around the top of the arches. A punch fills in other spaces.
This really narrow gouge chops little patterns inside the hollows.
I always like to see what they look like after applying some linseed oil –
I’ve heard it called “nulling” but my copy of Cyril Harris’ Illustrated Dictionary of Historic Architecture is out in the shop. That’s where I would check the name. Maybe I’ll remember tomorrow.