I have some 8 mm thick x 80 mm wide ground flat stock which I am thinking about using for ways, initially for the ways of the Z-axis of a mill, and perhaps for a small lathe later.
I'll attach it something a bit more rigid, possibly a 80 mm x 80 mm or 80 mm x 40 mm box section, although I have some 70 mm x 30 mm cast iron that would also be suitable.
The question I have is what would be a good sliding bearing surface partner for ground flat stock? The flat stock is presumably flat, but the surface is not smooth on the small scale, and it might act a bit like a file. I can smooth and polish the surface, but is that necessary? Any suggestions?
Thanks,