These brackets unfortunately aren't a good fit for 3D printing as they are way too delicate. The layered nature of Filament Deposition Modelling (desktop type) 3D printing means it has full strength in only two dimensions and only half strength in the 3rd, except with some exotic nylons. With something this thin, that would be an unworkable compromise.
Selective Laser Sintering (the industrial type) fuses material together with pretty much equal strength in all dimensions, however that technology is still prohibitively expensive for tinkerers like me.
Dean has offered to help with buying from Tradition while they won't ship to the UK
