The primary reason for using the kilns is that I have access to them, and I do not have access to welding equipment or a frame jig. It would also reduce expossure to noxious fumes and chemicals. Also, the kiln is large enough to hold up to perhaps six 64cm frames, and if the process could be streamlined it could potential allow me to build several bikes each week.

Certainly ensuring enough braze went into the lugs would be tricky, but if it were necessary I think I would be able to create glazed bisque trays to hold the silver in place without contaminating it, to ensure it got sucked into the lugs.