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Question on prismatic stringing

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Question on prismatic stringing

#1

Question on prismatic stringing

CJ in MPLS

All stringing is prismatic, i.e. is a prism. Mostly stringing is square or rectangular in shape. Some is not; some is triangular and it is this triangular stuff I am curious about.

Khatam is a veneer, mosaic really, that is very similar to Japanese hakone in principle. The differences appear to be the patterns, the thickness of the veneer, and the size/pitch of the repeated elements. Most hakone veneer appears to be relatively large, each sheet of veneer being an end grain slice made with a plane. These hakone veneers are of a thickness of a plane shaving. I like the idea that these small sheets are almost translucent. Khatam veneers, on the other hand, are cut with a saw and are somewhat thicker than hakone, though the concept is almost identical.

Hakone marquetry


Khatam marquetry






The question I have for you folks is how do you think triangular stringing that is on the order of 1/16" in dimension is made. I am imagining that rectangular/square boxwood stringing is pulled through a die or past blades to make it triangular, but I don't really know. I know that triangular brass or silver wire is easily made by running two wires through a rectangular rolling mills, the distinct wires being pushed to diametrically opposed corners of the die to form triangles. If the cross sections of each wood strip were larger, I can imagine cutting or planing these, but they are truly small.

I'm not ready to move on this project, but I am interested in how this might be done.

CJ

Re: Question on prismatic stringing

#2

Re: Question on prismatic stringing

Warren in Lancaster, PA

This is usually done somewhat differently than you are imagining. Usually veneers are glued together and then sliced up and reglued to make these patterns.

Your examples are quite complicated, but here is a simple example. Glue eight 1/16 veneers together alternating black and white. Then make 1/16 slices perpendicular to the glue lines. Assemble these slices alternating and glue together. You now have a checkerboard pattern of 1/16 squares, but you never actually made 1/16 X 1/16 strips.

Re: Question on prismatic stringing

#3

Re: Question on prismatic stringing

CJ in MPLS

Thanks Warren. The lateral type of symmetry you describe is spot on. I’m wondering how to make the strips that would allow for radial symmetry. There is one video I was able to find in which individual 18”-24” strips were glued together to for a rod. Hide glue on the central strip was used. Yarn was wrapped around each of the rods until the glue dried. The article I was reading, which has a few video links, can be found here: https://makezine.com/2017/01/06/heirloom-tech-inlaid-micro-geometries-khatam/

I expect that the raw materials are readily available in Iran but I am thinking they are not so easily obtained here. ;)

CJ

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