The 'motor gear catch' for my 1903 Fox 3 has finally been finished. It was missing from the typewriter when I bought it. A friend with a Fox 24 traced his part out and made measurements, I sent that to my machinist friend who made a CAD drawing and cut it out with a water jet cutter. The next job is to find out what size balls went under the carriage. They are missing and I have no idea how they would be set up
Wonderful news! It is great to hear you found another to use as a pattern.
For that machine it seems unlikely you'd have much success selling copies of the part you had made, but perhaps you could make the CAD drawing available somewhere on the internet in case anyone had a need to make the part again.