I have started the physical work on my bird feeder sculpture that I have been designing in Rhino 3D software for a number of months now. It is going to be a life size nude man kneeling on one knee and holding a tray aloft with both arms. The body will be half abstract and half realistic and executed in concrete. I've decided to concentrate on the tray that will hold the dishes of bird food first. My initial idea was to buy a suitable stainless steel tray, but I have searched high and low without finding anything suitable. The problem is that it must be 500mm in diameter, but that size is just not easy to find. I have had the circular base cut out of 3mm aluminium plate on a CNC machine, while the edge strip is 2mm aluminium. This is the design:
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I brazed it together over the weekend, using a MAPP gas torch and fluxless HTS-2000 aluminium brazing rods. I want it to be a satin finish, not shiny, so I will soak it in a 0.2 to 0.5 molar sodium hydroxide bath for an hour or two until it looks right. I will continue with progress updates and photos in the Sculpture Forum.