Well, I mean the envelope is still glass but only the inner works are 3D printed. I had a quick search on google after my post and there is actually quite a development going on in electrically conductive 3D printing technology. Some claim "low cost" but not sure if that would be good enough to make cathodes and grids. If you try to make a new type of nixie tube, then maybe the latest technology available is not such a bad idea?

Michel



on Jan 29, 2013, jb-electronics <[email protected]> wrote:

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