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ian1196
in reply to: s.noke71

In this example, the material would be Delrin of some other easy to machine plastic. Before posting, my thought was to pocket away the center, using the same flat mill, do a parallel at about 0.008" step over. Make a copy of the parallel but change the rotation to 90 degrees. Switch to ball mill and pencil out the bottom corners. That would work but there is a lot of air cutting. I was hoping for a more elegant solution. Thanks.