How do I get the post on my mini milling perpendicular to the milling table? The degree scale can get it close but not exact as when I have to do several cult across a work piece I get small ridges on the surface. I figured out how to do it on my Unimat 3, just screw on the face plate and then rest the milling head on the lathe bed, but How do I get the milling head on my larger milling machine (micromart mini milling machine) perpendicular to the milling table?