Tiffany Arch Fan: a half-circle dome fan over a paneled sill

Tiffany Arch Fan sets a true half-circle dome over a sill band, in the style used on lampshade side panels. The dome is split into 3 concentric bands and 5 radial wedges (15 fan facets in the dome alone), and both the sill and the sky beside the dome are split into bands rather than left as one giant piece.

Panel size runs from 10 in to 24 in. Thirty pieces total; every wedge holds a wide angle margin at the dome's shared center point, and the dome's own curve stays above the minimum reentrant radius at every size in range.

The download includes a full-size tiled outline, a numbered piece map, a color reference sheet, a cutting-margin pattern, and a glass and supply list.