Trying to increase the rigidity of my drill press milling machine. New epoxy granite square column for the drill press mill. In this one, I show how I made a stiff square column for my drill press mill and built a new table that rides on linear guides for the Z-axis. It's a mini knee mill. If you want to convert your drill press into a milling machine, don't miss this one. This is part one of a two part video. In the second part, we'll upgrade the head and try it out. Many thanks to @metalmusings for doing the legwork and providing the recipe for the epoxy granite. I had fun making this one. I hope you enjoy.