Looking to cut steel parts no thicker than 1/8 inch, no larger than 4 inches long. There are some gentle curves and lots of holes and slots. I like the idea of a cnc machine for more precise cuts, but the cost of a cnc mill is certainly a factor. Can a home built cnc router cut steel? If not, would like suggestions for a benchtop milling machne that could eventually be converted to cnc. Thx in advance. Jim