[ATM] Re:Tees instead of triangles

["Alan K. Henderson" <alankh@ev1.net>]

Ah, I should have said those three magic words: nine-point cell. For a 16" full-thickness mirror. Here is a side-by-side sketch of a traditional 9-point cell (taken straight from Plop output) and the cell with tee-shaped supports (mirror support pads and support bolts drawn to scale).

http://users3.ev1.net/~alankh/Triangles-Tees.gif

The mirror is thick enough that it doesn't need an 18-point cell. But the triangles/tees will have to support 50 pounds, so the well-established engineering tradition will require some tweakage.

Alan K. Henderson
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