These twisted 0.25" copper strips have a twist half-wavelength of 0.65", for a quarter-wavelength/strip-width aspect ratio of 1.3. (The hexagonal opening would be smaller in a completed weaving-- here the crossings are held together by elastic bands cut from the ends of 160Q balloons.)
In this view we are looking down the isometric axis giving the x,y,z Cartesian axes the same foreshortening. A chiral pair of twisted strips are aligned with each Cartesian axis, the six strips cross in a consistent over-under-over-under pattern around the hexagonal cycle. I made the strips by dangling a very heavy vise from the strip and counting turns. I found it difficult to get a consistent twist-wavelength over the length of the strip with this technique.
No comments:
Post a Comment