Tag: Timber

Building Digital with Timber, Mud, and Ice

[Image: From a project called “Slice” by HANNAH, as featured in FABRICATE 2020.]

The Bartlett School of Architecture recently put out two new books, freely available for download, FABRICATE 2020 and Design Transactions. Check them both out, as each is filled with incredibly interesting and innovative work.

Purely in the interests of time—by all means, download the books and dive in—I’ll focus on three projects rethinking the use of wood, clay, and ice, respectively, alongside new kinds of concrete formwork and 3D printing.

[Image: From “Slice” by HANNAH, as featured in FABRICATE 2020.]

For a project called “Slice,” Sasa Zivkovic and Leslie Lok of design firm HANNAH and Cornell University explore the use of “waste wood” killed by Emerald Ash Borer infestation.

[Image: From “Slice” by HANNAH, as featured in FABRICATE 2020.]

“Mature ash trees with irregular geometries present an enormous untapped material resource. Through high-precision 3D scanning and robotic fabrication on a custom platform, this project aims to demonstrate that such trees constitute a valuable resource and present architectural opportunities,” they explain.

[Images: From “Slice” by HANNAH, as featured in FABRICATE 2020.]

They continue on their website: “No longer bound to the paradigm of industrial standardization, this project revisits bygone wood craft and design based on organic, found and living materials. Robotic bandsaw cutting is paired with high-precision 3D scanning to slice bent logs from ash trees that are infested by the Emerald Ash Borer.”

I’m reminded of a point made by my wife, Nicola Twilley, in an article for The New Yorker last year about fighting wildfires in California. At one point, she describes attempts “to imagine the outlines of a timber industry built around small trees, rather than the big trees that lumber companies love but the forest can’t spare. In Europe, small-diameter wood is commonly compressed into an engineered product called cross-laminated timber, which is strong enough to be used in multistory structures.”

Seeing HANNAH’s work, it seems that perhaps another way to unlock the potential of small-diameter wood is through robotic bandsaw slicing.

[Image: From “Mud Frontiers” by Emerging Objects, as featured in FABRICATE 2020.]

For their project “Mud Frontiers,” Ronald Rael and Virginia San Fratello use 3D printing and “traditional materials (clay, water, and wheat straw), to push the boundaries of sustainable and ecological construction in a two phase project that explores traditional clay craft at the scale of architecture and pottery.”

[Image: From “Mud Frontiers” by Emerging Objects.]

“To do this,” they explain on their website, “we stepped out of the gallery and into the natural environment by constructing a low-cost, and portable robot, designed to be carried into a site where local soils could be harvested and used immediately to 3D print large scale structures.”

[Image: From “Mud Frontiers” by Emerging Objects.]

Finally—and, again, I would recommend just downloading the books and spending time with each, as I am barely scratching the surface here—we have a very cool project looking at “ice formwork” for concrete, developed by Vasily Sitnikov at the KTH Royal Institute of Technology in Stockholm.

[Image: Ice formwork for casting concrete, developed by Vasily Sitnikov, as featured in Design Transactions.]

Sitnikov’s method was initially devised as a way to save energy during the concrete-casting and construction process, but quickly revealed its own aesthetic and structural implications: “The variety of programmable functions for ice formwork is vast,” he writes, “across environmental design, programmable lighting conditions, acoustics, ventilation, insulation and structural-design weight-saving applications.”

[Image: Ice formwork for casting concrete, developed by Vasily Sitnikov.]

He has found, for example, that “spatial patterns… can be imposed on concrete, abandoning any use of petrochemicals in the fabrication process. Breaking away from the ‘solid’ image of conventional concrete, the technique of using ice as the formwork material enables the production of mesoscale spatial structures in concrete which would be impossible to manufacture with existing formwork materials.”

[Image: Ice formwork for casting concrete, developed by Vasily Sitnikov.]

Weaving, carving, cutting, molding: the two new Bartlett books have much, much more, including voluminous detail about each of the projects mentioned briefly above, so click on through and go wild: Design Transactions and FABRICATE 2020.

Wood from the Witch House

[Image: Via LASSCO].

This is amazing: shortly after writing an earlier post, I found this anecdote from an architectural salvage company in England called LASSCO. It’s like the beginning of a blockbuster film. A customer came in one weekend looking for “an oak beam for his fireplace lintel.” As LASSCO explains, the company tries to keep “a selection of them in stock—salvaged, prepped up and ready to sell. It was only when placing one of the beams aside we happened to put it down with daylight glancing along its length and we spotted that it held a secret. It was covered in apotropaic markings.”

Apotropaic markings, or protection marks, are basically magic symbols thought to ward off evil influences and keep malevolent fates at bay—and they are more common in traditional architectural practice than you might think. LASSCO even recommends checking your own house for them.

“If you live in a timber-framed house dating back earlier than the eighteenth century,” they advise, “look out for scratchings on the bressumer beam, sometimes only very lightly inscribed at the top corners of the fireplace, like the scratching of a cat. Look for a repeated ‘W’—thought to be a double ‘V’ for ‘Virgo Virginum’. Look for daisy wheels—a circular device with petals, or runic symbols—a ‘P’ incorporating a cross, or a ‘W’ incorporating a ‘P’. Look for two verticals with a ‘Saltire’ cross between them—a motif also much used on iron door latches and bolts and wrought iron firedogs.”

What an incredible setup for a horror film or novella: an architectural salvage firm uncovers strange ritual markings on pieces of timber in their inventory, and the macabre knock-on effects this might have as these bits of weird wood are incorporated into someone else’s home.

Alas, LASSCO’s tale is from 2013 and the oak beam has since been sold.

Arcs, Sets, Circles






[Images: Via the Getty Research Institute].

Thanks to some “newly digitized” versions of the classic Encyclopédie edited by Denis Diderot, Jean le Rond d’Alembert, and Robert Bénard—among others—I stumbled on these beautiful carpentry diagrams, presented here simply for your Monday morning viewing pleasure.

Geomedia

[Image: “Laser Cut Record” by Amanda Ghassaei].

An incredible example of what can be done with laser-cutting, Amanda Ghassaei’s project “Laser Cut Record” features music inscribed directly into cut discs of maple wood, acrylic, and paper, resulting in lo-fi but playable records.

For what they are, the otherwise scratchy and off-kilter audio quality is actually quite amazing, and the sounds themselves are made all the more haunting and strange by the crackling noise and resonance of the material that hosts them.

[Image: “Laser Cut Record” by Amanda Ghassaei].

Some technical details are available at Ghassaei’s Instructables page, and you can see the laser-cutting itself at work in the following video.



I’m reminded of a short letter called “Acoustic Recordings from Antiquity,” written to the Proceedings of the IEEE in August 1969 by a man named Richard G. Woodbridge III. The somewhat eccentric Mr. Woodbridge explains that he has been researching accidental recording of sounds found, after careful analysis, on the surfaces of physical objects rescued from antiquity—in particular, pieces of pottery originally shaped on potters’ wheels (seen here as a kind of primordial record platter).

Woodbridge even claims some sounds have been “recorded” as re-playable waves in the slowly drying shapes of oil paintings.

To listen to these lost recordings, the letter suggests, you simply hold a record cartridge near the work of pottery in question, such that the needle of the phonograph can “be positioned against a revolving pot mounted on a phono turntable (adjustable speed) ‘stroked’ along a paint stroke, etc.” When this was done properly, he claimed, a “low-frequency chatter sound could be heard in the earphones.”

That is, the voices of people present in the room during the making of the pot could be re-played from the surface of the pot itself.

[Image: “Laser Cut Record” by Amanda Ghassaei].

Woodbridge suggests that this might have alternative applications: “This is of particular interest as it introduces the possibility of actually recalling and hearing the voices and words of eminent personages as recorded in the paint of their portraits or of famous artists in their pictures.” So an experiment was orchestrated:

With an artist’s brush, paint strokes were applied to the surface of the canvas using “oil” paints involving a variety of plasticities, thicknesses, layers, etc., while martial music was played on the nearby phonograph. Visual examination at low magnification showed that certain strokes had the expected transverse striated appearance. When such strokes, after drying, were gently stroked by the “needle” (small, wooden, spade-like) of the crystal cartridge, at as close to the original stroke speed as possible, short snatches of the original music could be identified.

Through this technique, the overlooked—overlistened?—acoustic qualities of various objects, beyond high-brow pottery and oil paintings, can thus be revealed:

Many situations leading to the possibility of adventitious acoustic recording in past times have been given consideration. These, for example, might consist of scratches, markings, engravings, grooves, chasings, smears, etc., on or in “plastic” materials encompassing metal, wax, wood, bone, mud, paint, crystal, and many others. Artifacts could include objects of personal adornment, sword blades, arrow shafts, pots, engraving plates, paintings, and various items of calligraphic interest.

Woodbridge calls the pursuit and revelation of these sounds “acoustic archaeology.”

[Image: Like the rings of Saturn, from “Laser Cut Record” by Amanda Ghassaei; in fact, perhaps the rings of Saturn are an unread recording…].

But why stop at sounds?

Perhaps in two years’ time, we’ll watch as Amanda Ghassaei cuts DVDs—”the data on a DVD is encoded in the form of small pits and bumps in the track of the disc“—with a combined and simultaneous laser-cutter/3D printer ensemble, coating inscribed “small pits and bumps” with reflective metals.

Suddenly, wood, rock, metal, even exposed geology in situ can host visual content. Indeed, perhaps it already does, but we haven’t invented—or we simply haven’t applied—the right technologies for decoding it. In other words, we have DVD players; we just haven’t, learning from Richard G. Woodbridge III, used them to “read” other materials.

In August 2015, you and some friends hike up to a rock wall in the middle of Utah, and there are DVDs printed all over the surface of the hillside, full-length albums laser-burned into White Rim sandstone, and audio-visual pilgrims carrying deconstructed laser-lens systems, scanning for hidden film fests and warbling soundtracks, swarm every surface all around them.

It’s the rise of geomedia.