Re: Making Model parts through Rapid Prototyping, was "Gloss coat for decalling"
Pacific Locomotive Works in San Jose, CAtoggle quoted messageShow quoted text
makes custom parts using the RP process. The web page explains
the process. Of interest is that once a drawing has been made
it can be scaled to any size, thus an O scale driver drawing
is usable in any other scale (ignoring the question of whether
the printing process can replicate things like letters and
numbers in say, Z scale).
The air hose hangar bracket that was a recent thread here might
be an easy but effective place to start.