When only this mod and space age are installed (including prereqs ofc), steam assemblers and burner assemblers cannot make copper cable, but can make all other cables (when other bobs mods installed).
All other assemblers from the mod can make copper cable.
I was able to fix it by adding the assemblers to the data-final-fixes. I don't know if its intended but I want to do a mostly steam driven factory. It would be nice if there was an option to allow steam assemblers to craft more things. Maybe tied to technology.