Carving Greek Acanthus Leaf 12

Ask me where the depth in a panel comes from and there is one answer. Extreme undercutting, and nothing else on the list people usually reach for. Finer detail will not do it, more leaves will not, a cleverer drawing certainly will not. Take enough wood from behind an edge and the whole panel changes character, and today one section goes right through until daylight comes out the other side.

My own limit sits somewhere past sensible, and I have overshot it before now. Overdo a hollow and the leaf above becomes a shell, so every one of these passes carries a small argument with myself about how far is far enough.

Work on the Greek acanthus today is the background, the sideways tools, and the moment a leaf stops touching the panel.

What this stage is buying you

• Depth that reads from across a room.
• A background with a bump in it will show under raking light forever, so it gets levelled now while the tools can still reach the low spots without hitting anything finished.
• Light through the wood, not just shade under it.
• Sideways tools reach what nothing else can.
• The one millimetre V tool does the last of it.
• Every deduction is permanent, and that sentence should slow your hand by one notch before each of these passes.

What actually gives a panel its depth

Take more from underneath than feels sensible, and nothing else is hiding behind that sentence. A lobe with a shallow undercut reads as decoration, and the very same lobe with a deep one reads as a plant that happens to be made of wood.

Same drawing, same surface, and an entirely different object on the wall.

Why the ground gets levelled at this point

A bump hides from you while you are looking down at it. Look straight down at a relief and a raised patch on the floor of it is invisible, then the light comes across at four in the afternoon and there it is, a grey lump sitting between two leaves. Clear it while a tool can still get in there.

Is a straight gouge safe on the ground?

Risky by now, honestly. A straight shaft has to lie across whatever is standing between you and the floor, which on this panel means resting on carving I finished two lessons ago. My 3A short bent at 12 millimetres, fifteen thirty seconds of an inch, solves it: the blade drops into the low ground while my hand stays well above everything.

What is a sideways undercutting tool?

A blade with the edge turned ninety degrees so it faces along the surface. Chris Pye designed it, Ashley Iles make it, and the burned in label on my video calls it a deep undercutter. In America Tools for Working Wood sell them. Three in the set, and the right hand one does most of what you see today.

Pull it toward you, mostly. Pushing works as well and it is useful for cleaning up, so try both on scrap before you decide which your hands prefer.

Can you undercut something sitting close to the ground?

Even then, and the result surprises people. A detail that nearly touches its background looks glued on. Slip a sideways tool in, take barely anything, and the same detail appears to hover a hair above the floor. Two minutes of work for something people notice without knowing why.

Fixing a line that does not flow

With a knife, slowly, sighting along the surface rather than from above. Every outline on this panel should run as one continuous movement, and a wave in it stops the eye dead. Mine had a wave. Took the number 12 to it and walked the whole curve back into agreement with itself.

Nobody will point at that line and praise it. What happens instead is that the panel feels restful rather than slightly wrong, and no visitor knows why.

Where the one millimetre V tool earns its place

Corners the others are simply too fat for. Number 16, one millimetre across or a thirty second of an inch, and by this stage it does the last shaving in half a dozen corners. Turn it upside down and it takes a fine zip along an edge that no other tool in my rack can follow.

What if an edge still looks rough?

Three answers, in order of how much I like them. Take the knife back to it, which is what I do. Use a scrap of fine paper, which works and which I try to avoid. Or reach for Dutch reed, the horsetail stem European carvers reached for long before sandpaper existed.

Reed is not really sanding. Silica in the stem polishes the fibres rather than scratching them, and the surface it leaves keeps its tool marks while losing its fuzz.

What piercing means

Taking the hollow right across the thickness until both faces meet. Pierced work has its own long history. On a relief it does one thing no hollow can manage, which is to let light arrive rather than merely fail to.

Then the leaf looks like it is growing in the air. Rotate the panel and that opening changes shape, and on a sunny wall the carving moves through the day.

Knowing when you are through

Daylight, and the tool suddenly meeting nothing. My blade came out the far face on this one. From there the job stops being about removing wood and turns into cleaning the opening from both sides at once.

Piercing also hands you a new door. Waste unreachable from the front now lifts out from behind, and a tool can enter well beyond the leaf itself.

Please do not press

Said twice in this lesson and I will say it again here. Pressure is how a panel at this stage gets ruined, not lack of skill. Make several light passes with the knife rather than one confident one, and when a chip refuses to lift, hook it rather than lever it, because that junk is already severed and simply stuck.

I got that wrong myself with the knife partway through, and the mark is in the video. Fixable, this time.

Is undercutting actually hard work?

Harder than it looks on a screen, and I want to be straight with you about that. An evening of this clears maybe a third of a small panel. Your shoulders ache, the chips are tiny, and for long stretches nothing visible changes at all. Then the light moves and you see what the hours bought.

Plenty of carvers decide the trade is not worth it, and I understand them completely. Lesson ten goes through exactly why most people skip this stage.

Getting under a pipe

Something very small, and there are two ways in. A plain number 9 at an eighth of an inch digs the shade if the opening allows it. Where it does not, a tiny back bent goes where no straight tool can, and my Ashley Iles number 37 will reach half an inch under from a blade you could hide in your fist.

Does light direction change what you carve?

Enormously, and it is worth thinking about before you carve rather than after. A hollow angled one way throws its shade upward, angled the other it throws downward, and the two look nothing alike on a wall lit from a window. Ask where the piece will hang.

Baroque carvers worked this out and then built whole altars around it. They knew which way the candles sat.

Can you really take the deduction back?

Never, and this is the sentence I repeat most often at a bench. You can deduct the wrong wood as easily as the right wood, and once it is on the floor there is no route back to where you were. Which is why the sideways tool goes in for a hair at a time rather than a confident sweep.

Light through the wood, and what it changes

Changes the piece from a carving into something alive. Undercutting gives you dark. Piercing puts a bright edge against that dark, and the boundary between them shifts as a person walks past. Grinling Gibbons built entire limewood swags out of that one effect, and they still stop people in English doorways today.

Worth the nerve it costs. The techniques library has the repairs for when the nerve turns out to have been misplaced.

The tools, part by part

Tool	Job	Why
The 12 mm short bent 3A	Ground	Keeps your hand safely above everything already finished below it
Sideways right hand	Shade where a detail almost touches its floor	Pull
A 12A, bent	Cleaning	Takes out whatever the gouge loosened, and reaches past a raised rim
Knife 12	Straightening an outline that wandered off its curve	Sight along it
V tool 16	Last shaving in a corner nothing wider can enter	Upside down as well
Back bent 25, 6 mm	Deep work past whatever is in the way	Small turns on one corner, never a straight shove
Ashley Iles 37	Pockets nothing else enters	Half an inch deep from a blade you could lose in your palm

Why does a back bent beat a straight gouge here?

Geometry, nothing else. A piece of finished carving stands between my hand and the wood I want, and a straight shaft would have to lie on it. The reverse curve lifts the handle clear while the edge keeps going, so I get depth that a plain gouge simply cannot reach from this direction.

Carving what you cannot see

By feel, and on one corner of the blade. Most of what happens under a leaf is invisible from any angle the camera or my own eyes can manage. My right corner does the work, turning slightly on the move, and the evidence arrives as waste coming out rather than as anything I watched happen.

Where is this panel most likely to break?

At the thin neck where the grain runs across rather than along. Deep undercutting near one of those is asking for trouble, and I know it while I am doing it. Leave more wood than looks necessary there. Whatever shade you gain there is never worth losing the tip.

Why a whole shelf of small bent tools

Each one solves a shape the others cannot enter. My 3A at five millimetres cleans a pocket the twelve millimetre version bruises. The number 12A reaches past a rim that stops a straight V tool dead. Nothing on that shelf is a luxury by this stage of a panel, though I would not tell a beginner to buy any of them on day one.

Start with three tools and a knife. Add a bent one the first time you meet a job that genuinely defeats you, and you will remember why you bought it.

How close can you get to a finished surface?

Closer than feels comfortable, if the tool is shaped for it. A short bent lays its edge into the low ground while the handle rides safely above the carving, so the blade can work a few millimetres from something you finished last week. Try that with a straight gouge and the shaft does the damage, not the edge.

What happens to the waste you cannot see?

It stays under there and lies to you. Loose fibre packed into a hollow makes the shade look shallower than it really is, and carvers then keep digging when the depth was already won. Clear it out first, look again, and half the time no more wood needs to come off at all.

Where does lesson twelve leave the panel?

One section pierced, several more undercut hard, and the background finally flat between the leaves. Lesson eleven made the case for slowing down, this one spends what that patience bought, and lesson thirteen is where the piece finally breaks on me.

The Byzantine leaf pushes this even harder, the Gibbons class is nothing but this problem for a week, and design covers why depth reads the way it does.

What I would have you try this week

Pick a leaf tip on scrap and take the hollow under it twice as far as you think is wise. Watch what that does before you decide my way is reckless. Then put the same board on a windowsill, turn it, and look at what the light does through the gap.

Level your background, straighten one wandering line, and pierce one small hole where nothing is holding you back. Sharpening decides whether any of it works, the tools course explains every number in that table, and the rest of this course sits behind one door. Shall we carve?