It took one month, many completed and installed glass ceilings and a whole life to develop a project design for our Client in Connecticut. That included research, engineering, planning, hand drawing in a scale 1 to 1, digital drawing and 3D modeling in AutoCAD. It took another month to prepare glass for custom bevelling and to program our CNC machine to cut that glass. I estimate that it is more than 7 000 pieces of glass, 20 000 pieces of lead - all designed, cut, assembled and soldered into one large leaded glass canvas.
Preliminary sketch drawings

Digital drawing and 3D modeling in AutoCAD in 1 to 1 scale

Hand drawing in a scale 1 to 1 helps to feel the scale, movement and joint connections of leaded lines layout. Even without texture of glass the design should look as an intricate art linework with all observed composition rules.

Last minute touch ups to the sketch before design presentation to the Client and the Client's team. Working from my home based studio