I have to mill a large 12" x 12" hexagonal shaped plate out of 1/4" thick aluminum.

Since the Y axis on the Tormach is only 9 1/2", does anyone have any tips or suggestions on flipping this part on the table so I can maintain an accurate reference?

I plan on fly-cutting both sides to tolerance with a .1875" thick part left over and will hold the part with #10-32 mitee bites for this procedure.

I do have one of Tormachs 18" x 18" x 10mm pivot plates with T-nut locating pins (31871 - Aluminum Pivot Plate, 18"x18"x10mm) and (31855 - 5/8" T-Nut with Locating Pin (Blind)) so this might be a good time to try it out but not sure it will give me the proper overlap unless I modify/add location holes.

Thanks for any input.

Best,
Nathan