Category: Ingenious Mechanicks

Editor’s note: On this day (Aug. 24) in 79 C.E., Mount Vesuvius erupted, killing thousands and forever changing the course of archaeology. The ash that covered the nearby towns was devastating, but it also created a detailed snapshot of everyday life. It also gave us the two earliest images of workbenches in the West. To remember this day, here is the first chapter of “Ingenious Mechanicks,” which is about my visit to the volcano.

The journey to the summit of Mount Vesuvius has all the romance of visiting an unlicensed reptile farm. It begins in Ercolano, Italy, a touristy village in the shadow of the volcano and home to Herculaneum, one of the towns buried by Vesuvius’s eruption in 79 C.E.

As Narayan Nayar (the photographer for the journey) and I stepped off the train from Naples we were assaulted by young, attractive Italians. Their job: Bait tourists to nearby restaurants. We glanced around and saw only one escape route from the train station’s cul-de sac. So, we plowed through the crowd of eager human fishing lures.

We emerged from the other side a bit relieved. Then we realized we’d scurried past the bus company that was supposed to drive us up the volcano. We turned around and dove back into the swarm of too-perky people in order to catch our bus.

The twisty-turny bus ride ended 660 feet below the volcano’s summit, and we then climbed a steep trail to the volcano’s rim. The top resembles a gravel pit where one of Frank Herbert’s worms might emerge. There’s no deep hole for tossing human sacrifices – throw a virgin into Vesuvius and she’s only going to get skinned knees and a sunburn. I looked around the volcano and promptly excused the early settlers of the area for building their homes at the base of Vesuvius. The only evidence you’re on a volcano (besides the little gift shops) is the occasional tiny plume of gas and the odd rocks below your feet.

I picked up a few rocks. For rocks, they were young – likely the result of the 1944 eruption, which destroyed several villages. I looked out from our 4,200-foot perch at the buildings in every direction below, which are built on top of villages that were covered in ash from earlier eruptions. It’s a grim scene if you think about it too much – 600,000 people now live in the so-called “red zone” for a future eruption.

And yet, as I fondled the rocks in my hand I felt only gratitude for this deadly, fire-breathing mountain.

The Earliest Workbenches
The recorded history of woodworking begins with the Egyptians. But the recorded history of workbenches begins (for now) with Vesuvius. Its massive eruption in 79 C.E. buried Pompeii, Herculaneum and other sites, preserving frescoes, buildings, pottery, human remains and even wooden furniture.

At Pompeii, the ash blanketed a fresco showing a low, four-legged workbench being used for mortising by a man in Greek attire. At nearby Herculaneum, the eruption preserved a fresco showing “erotes” – what we might call “buck nekkid cupids” – sawing a board at an eight-legged low workbench. It features a holdfast and other holdfast holes. This fresco has since been destroyed, but we have engravings that were made soon after its discovery (more on both the frescoes’ stories is ahead).

These two images are the earliest representations of workbenches of which I’m aware. And they launched my interest in exploring knee-high workbenches and how to use them to build furniture, boats, storage containers and wagon wheels.

The conventional wisdom is that these low benches were used in former times for simple work and were replaced by superior modern benches, which are thigh-high or taller. But the more I studied low benches, the more I found that they never disappeared. They are still in use. Additionally, these low benches can be used for complex work, including steam bending compound shapes and lutherie.

The low bench is more than a thick plank of wood with legs. It’s also a collection of simple jigs and appliances that allow you to do remarkable work while sitting comfortably on an easy-to-build platform. For centuries, these simple jigs remained hidden in plain sight in paintings and drawings in museums. And their appliances have been proven to work, both at my low benches and by the modern craftsmen who still use them.

But why bother with this musty old crap? Modern woodworkers are blessed with a wide array of vises, dogs, clamps and other devices that can immobilize a piece of wood so you can work on its faces, edges and ends.
Well, at times I think we tend to make our workholding far more complex than it has to be. And that can affect your approach to the things you build. While your brain might see the logic of a screw-driven tail vise with a series of movable metal dogs, the ingenious early craftsman might find this same vise slow, fragile, fussy to maintain and cumbersome in use.

I empathize with the early woodworker. My brain is wired to look for a simpler solution to a problem instead of creating complexity.

Example: Earlier this year, I spent a couple hours in the dentist’s chair and was force-fed several episodes of a home-improvement show focused on carving out storage from oddball places in a home. Some of the examples I remember over the whirring of the dental Dremel include:

• Hinge your steps to create trap doors on the landings of your stairs to make small bins in the wasted space between your stringers.
• Find stud walls that are chases for utilities and turn them into built-in chests of drawers.
• In attic spaces, create sliding racks on the interior of a high-pitched roof. You slide giant plastic bins into the racks – it’s a bit like a top-hanging drawer.

Through the entire program I wanted to puke (that was mostly because I have a sensitive gag reflex). But it was also because these “storage solution” programs neglect to mention the easiest way to control clutter:
Get rid of your excess crap.

No one should have so much stuff that they have to slave excessively to make a place to stow it. In the same way, no workbench needs vises on all four corners (I’ve built these for students and customers) to build fine furniture. You just don’t.

With this book, I hope to expose you to early and simple ways of holding your work. While many of these devices were used on low workbenches, most of them work on high workbenches as well. I use both sorts of benches – high and low – in my work for building all manner of things, from stud walls to Welsh stick chairs, dovetailed chests to nailed-together coffins.

The workholding on these benches is truly ingenious and effective. Things change when you sit down to work. And I think you’ll be surprised what you can do on your bum: planing, chiseling, shaving and even dovetailing.

The low bench form might not be for everyone. But it might be right for you and you might not know it. Woodworkers with limited mobility use low benches because they can sit and work. Apartment woodworkers use low benches because they take up little space and do double-duty as seating or a coffee table. Curious woodworkers use them because – dammit – they are an interesting form to build and use. Many chairmakers already use a low bench (but they call it a shavehorse), as do many other specialty trades, including coopers and basketmakers. Oh, and a low bench is the best sawbench ever made – promise.

One more plug for these early benches: Using their lessons, you can make almost any surface into a worksurface. A couple drywall screws can turn a picnic table into an English-style workbench. A missing brick in a wall (and a pine wedge) can become a face vise. A shavehorse can be cobbled together with a rock and a scrap of wood strapped to your gut.

Even if you never build a low workbench and reject its appliances as “not whiz-bang-y” enough for your engineering mindset, you might enjoy the journey of discovery required to write this book. It involved trips to exotic Italy, Germany and Indianapolis. (And understanding the low bench might connect your work to Chinese benches.) In the process, we rescued oak slabs from a pallet factory. We flushed $1,000 down a metaphorical toilet to learn about the construction of the first modern workbench in 1505. We ate a ton of Neapolitan pizza.

Workbenches are at the heart of everything we do. So, let’s take a brief look at the history of Western workbenches and consider why it’s even worth looking at ancient benches.

This is an excerpt from “Ingenious Mechanicks” by Christopher Schwarz. 

Throw the Bench Down the Well
It’s not unusual to find Roman artifacts stashed in wells. Archaeologists have recovered thousands of tools, domestic goods, nails and even coins from the bottoms of Roman wells. The reason: Stashing valuable goods in wells was a typical Roman reaction to the threat of an overwhelming attack. If the Romans threw their precious bits down wells before retreating, there’s a chance they could recover their valuables later. And if they weren’t able to recover their items, there’s a chance their attackers wouldn’t find them, either.

But before we start discussing the fall of Saalburg, let’s look at how it started.

The Saalburg fort was founded about 85 C.E. as two earthen enclosures to protect a mountain pass. This was later improved to a wood and earth fort. In the second century C.E., Saalburg was expanded to become an impressive stone fort that housed a “cohort,” a unit of about 500-600 Romans. The fort served as one of the important links in the “limes” (pronounced “lee-mez” and not like the citrus), which was the frontier between the Roman Empire and the hostile Germanic tribes to the north.

About 260 C.E., the Roman limes fell. All areas east of the Rhine River were lost to the Germanic tribes of the north. Saalburg was abandoned during this time, apparently without a fight. Yet the fact that the fort’s wells were filled with tools and other important commercial objects suggests that its occupants felt threatened.

After the fort was abandoned, it was used as a quarry. And its history and very existence faded away until the late 19th century. After decades of research into the Saalburg fort by archaeologists, Kaiser Wilhelm II ordered in 1897 for the fort to be reconstructed. It is now an open-air museum and research center for archaeologists who study the limes and Roman technology.

We Go Below
Today, below the museum is a climate-controlled room with thousands of Roman objects. That’s where museum educator Rüdiger Schwarz took us one summer day in June. Its entrance is below grade, like a cellar door. Then you traipse down a few steps to a masonry-lined room that looks like the mechanical area of a school or office building. There’s equipment to control humidity. Lots of locked doors. Any janitor would feel at home.

Rüdiger unlocks a couple of doors and the scenery changes. It’s still a climate-controlled basement, but the hallways are lined with wooden shelves that go from floor to ceiling. And they are filled with bricks, pottery and woodwork. All of it neatly labeled. Though we’re walking at a normal pace, I stumble when my eye latches onto a label or an interesting ceramic. My feet don’t know what to do – move or stop.

We make a left turn; as do the shelves. To my left are banks of wide and shallow drawers filled with hundreds of artifacts. The only sound is a buzz from the lights above as they flicker on and warm up. I don’t suffer vertigo, but the floor seems to sweep upward as we pass into a cluster of wooden objects – wheels, stools and pieces of bridges that are bound in iron. Every wooden object is blackened from its time in a well that had no oxygen but lots and lots of iron objects.

And then there it is – the workbench standing on four legs like a lame dog. None of its legs are in the same plane, likely the result of it being waterlogged for hundreds of years and then being dried out in 1901. At some point, the benchtop split in its middle across its width, but it has been mended and looks sturdy and ready for straddling. There’s a piece removed from the back end where archaeologists attempted to date the bench – the offcut is also handy so you can see the annular rings of the tree and the way the iron has leached its way deep into the fibers of the workbench. It is black through and through.

I want to sit down, but the only seats available are 1,800-year-old stools and benches. And that’s when I realized the bench was between my legs.

“Pick it up.”

For me, the Saalburg workbench is a touchstone and a mystery. As the earliest surviving workbench, it is a link to woodworkers who existed centuries before us. Their tools are remarkably similar to ours. Yet their workbenches are a bit foreign. Many of the benches are knee-high and have workholding schemes that are dirt simple and somewhat alien.

When I’ve shown images of these early benches to other woodworkers, many have ready explanations for what this peg did or that notch was used for. But they don’t really know. The only way to find out – aside from cloning an old Roman woodworker – is to build these benches and build furniture using them. And even then, it’s difficult to be certain you are on the right path.

— Meghan B.

This is an excerpt from “Ingenious Mechanicks” by Christopher Schwarz.

Many visitors to my shop are intrigued by the low Roman-style workbenches (especially the children, who play Whac-A-Mole with the pegs). The most frequent questions I hear are: Were the Romans Lilliputians? And is this low workbench where the shaving horse came from?

It’s impossible to know for sure. But it is a short intellectual hop from a workbench you sit on to a shaving horse. And because there are so many variants to the Roman-style bench – for shipbuilding, steam bending, wagon building and on and on – the shaving horse might just be one of the many flavors of the low bench that developed for the specialty trades.

A small breadcrumb of evidence is the 1561 woodcut in book five of “De Re Metallica” (“On the Nature of Metals”) by Georgius Agricola. In the image, a German woodworker is shown shaving a stick to a fan shape so it can be used in a mine. Miners would use these dry sticks to help dislodge the ore they were seeking. The fan shape made the sticks easy to light on fire.

The first time I saw this woodcut, my brain saw a low Roman workbench instead of a shaving horse. Perhaps you can see the same thing I did – perhaps not. In any case, this image inspired me to add a removable shaving horse to one of my low benches.

The type of shavehorse shown in “De Re Metallica” is called a “dumbhead” or “Continental” style. These shavehorses have the pivoting clamp in the center of the bench and you squeeze your work either to the left or right of the clamp. The variation I built is commonly called an English shaving horse, which appears much later in the visual record.

Instead of a central pivot, the English shavehorse has two arms on the outside of the bench.

I’ve used both styles (including the mutant Shave Pony), and I decline to participate in the Shavehorse Holy Wars. I chose the English style because it is the style I have used the most and it was the easiest to adapt to an existing low workbench. All credit is due to Jennie Alexander for introducing me to this style of horse through her writing.

Here’s how it works: It starts with a 2″ x 2″ x 8″ post that is friction fit into the mortise that also holds the workbench’s planing stop. That post is joined to the “stage” of the shavehorse (the work surface of the horse). The two pieces are joined with a 5/8″-diameter dowel, which allows the stage to pivot up and down – just like the leaf of a hinge.

Below the stage is a large wedge-shaped assembly, called the “chock” by Alexander, that looks a bit like an odd drawer. This assembly is not attached to either the stage or the workbench. Moving it forward and back moves the stage up and down so you can clamp workpieces both small and large.

The clamping action is controlled by the arms. The arms pivot on pegs, which are inserted into holes in the edge of the benchtop. Between the two arms are the foot pedal and the head of the shaving horse. You press the pedal at the floor, and the head (sometimes called the “yoke”) clamps the work to the stage.

This horse can hold both short spindles and long legs. While it looks like long workpieces might hit the benchtop, you can simply knock the 2″ x 2″ post up an inch or so, and the work will clear the benchtop.

— Meghan B.