I have an old Rob Roy petter diesel site saw with a hefty circular blade (no carbide here I suspect) that I acquired to cut up large blocks. I know that in the bad old days the regular saw dressing was done on site by just about anyone with the knowledge. I've searched the net for guidance with negative result. I know the difference between a ripsaw and a crosscut but that's about it. Is there anyone who can advise me how to set about it?