Did you talk to your dealer about this being a post issue of were it is out putting what you want. Have you tried getting post help from the guys at the Mastercam Forum.
(i believe most of the users are only using 2.5 d. most manufacturing is 2.5 d.) Well it mater were you are in Manufaturing. Most people I deal with do more 3 to 5 axis programming with MC.
PS I would look at Helix Bore for what you are doing and a high helix EM, if you are cutting Alum go with a Destany 3flt tool for this.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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