An 18-point Mirror Cell . . .

The rear of the 18-point cell for a 17.5" mirror. The large ventilation hole will
help when cooling the mirror is needed.

The "back plate" is 20" x 20" x 3/4" thick Baltic birch.

The placement of the "18-points" is designed and optimized with Plop and
will provide plenty of support for the 1 5/8" thick mirror.

An 18-point flotation mirror cell for Richard in Calhoun, Louisiana.
The cell is designed and optimized with Plop. The mirror is a
17.5" F4.5 by Coulter.