The 3/16” x 1 ½” and 3/16” x 2” angle iron and ¾” round bar I had left over from other projects. The ¼” steel base plate I cut from the edge of a larger piece I was using as a welding table top. The round pipe was scrap left over after relocating some steam radiators in my house.
I cut the railroad scrap down to about 12’ x 2½” with a cheapo 4 ½” Harbor Freight/Northern grinder with a good quality cut-off disk. I started out by using my plasma cutter on it, but found that the low-tech method of using the grinder and cut-off wheel worked better, leaving a beautiful clean edge.