Another great project Bill. beautifully done as usual. I'm a little intrigued by the red markout dye, I've only ever seen and used blue.
Back in the early 60's when I was an apprentice toolmaker, we had a couple of die filers., one quite small table only about 6"dia. The larger machine was a square table about 12-14" across. Everything was cast iron and steel, with bronze bushes.The tables were cut with grooves about 1/8th inch deep and about 1/2" wide both ways the lands were about1/2" wide, the idea was that filings would collect in the grooves and not get dragged across the table. The larger machine also had a small blower with a pipe that could be directed into the work to blow the filings away.
Both machines were enclosed and had a connecting rod on a crank pin for the drive, these machines were old but fairly quiet. Also just below the hole in the table a conical hat was fitted where the lower end of the file was attached, this deflected all filings out to a collecting tray that was tilted to one side and the filings all fed into a container which had to be emptied every day, thus keeping the filings out of the works. The smaller machine was a single speed, but the larger one was 3 speed affected by a simple pulley change at the back of the machine. These machines were in almost constant use.