I have a Rong Fu RF45 mill that I need to tram and square. I started by trying to square the column, but I am having no luck. What I have done is attached a ground angle block squared to the table. On that to provide a longer smooth surface is a parallel. All of this is in this picture:
If I raise the head to the top of the parallel and reset the dial indicator to 0, when I lower the head I have more than .025 difference between the top and bottom. I have shimmed the left side of the column to try to compensate for this, but I can't seem to gain any progress. I have already added .075 of shims to the left side. Am I doing this right? Should I have started somewhere different?