It consists of thirty pieces of
laser-cut wood, stained yellow and orange, assembled
with cable ties.
Seen from the top, it has five-fold rotational
symmetry as in this rendering.
And here it is uncolored, test-fitting the parts before
applying the stain. The form derives from my
Ascending a Staircase
, at Duke University,
but is transformed to be oblate by mapping z
/2. So that's where the name D-Flat
comes from, but you can think of its musical
associations if you prefer.