Versions of Generic ceiling diffuser, 12 in round cones

Published versions never change. A new license, new data or new geometry is always a new version; people who used an older one keep it.

Drawing	Version	Change	License	Status	Published
	Version 2	GeometryAdded the ceiling plate and four nested round cones with the centre plate (plan and 3D).	CC0	Published	Nov 3, 2026
	Version 1	GeometryFirst version.	CC0	Published	Nov 3, 2026