i have to make 10 parts that need 3 milled places on them the problem is they are 38 inches long and a foot wide. How is the best way to put them on my mill table to cut them one at a time of course. the material is 1/4 inch thick aluminum it has a cut out in the middle and a larger hole on one side and a small hole on the other side. i have a bridgeport clone with a 9x42 table. I was thinking 1.2.3 blocks under the center and ends and use the steps on the ends to hold it down is this correct? or better ideas?