It's hard to see the D surface in
Diamond Weft, so I made another try with Skew TeePee, a sculpture made out of twisted (rather than bent) strips of copper. The twisted strips follow a straight course, and cross only strips of the opposite twist-handedness. Looking down any of the three cartesian directions, the S- and Z-twisted strips are arranged like a checkerboard.
By arbitrarily choosing to "ride along" either side of a twisted strip, the crossings are seen to alternate over and under. Presumably a large enough weaving in this pattern would hold together by friction in the usual basket way–these strips are lashed togrther at the crossings with elastic hair bands. Skew TeePee does not get very far towards closing up the D-surface, but I believe it is possible to do better with straight, flat, but more tightly twisted strips.
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