Hi guys.
I'm new to MasterCAM but know Solidworks and ACAD pretty well.
I'm trying to increase my skill level for MCAM and would like to know how to insert a reference plane at an angle to a surface to produce a cut profile. For instance, I have a block of steel that needs a square pocket in it. The bottom of the pocket needs to be 30 degrees from the top. How can I easily draw the shape and then use FBM to cut it? I can import a solid but would like to learn how in MCAM.

Hope you understand the question as its hard to explain.

Thanks
Yoda