Dirk wrote:
> Did you try any generated code?
> At work we are looking into buying a 5 axis mill. I never thought it  
> would be easy to operate such a machine, but it seems to get harder  
> every day I learn more about it. And we don't even have it yet.
> I am also curious if Stuart's machine is using handwritten code or  
> that he is using some kind of cam software.
Stuart Stevenson has a big shop in Wichita, KS that does aerospace parts 
for Boeing and everybody else.
(He has a smaller shop in Eminence, MO, too.  see http://www.mpm1.com/
for more info.  So, you should get the picture that he can afford $25K 
or worse software tools if he needs them.
>  But to me, the step from 3 to 5 axis is not just  
> 2 axis extra. 
Yup, for 2D and even much 3D, whatever face of the tool is cutting 
matters, and the rest of the tool can be largely ignored.  With 5-axis, 
you have to worry about the entire shape of the tool, maybe the holder 
too.  You have to treat the workpiece as a volume, and your tool is 
going to nibble off bits of that volume without ever gouging someplace 
it isn't supposed to.

Jon

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