Re: [Emc-users] About pos->a/b/c in trivkins.c and genhexkins.c

[Alex J. <ale...@ro...>]

> R, P and W are bad choices for axis names as R is used for radius, and P 
> selects the coordinate system
> in the G10 L2 Pn command.  U, V and W are auxilliary linear axes parallel 
> to X, Y and Z, respectively.
> U, V and W are official axis names (called "words" in the RS-274D language 
> specification).

right, I probably didn't express myself correctly. I wasn't talking about 
G-code letter but rather about usual concepts.
Actually the most common names are X,Y,Z, Alpha, Beta and Gamma

> I don't see how the rotation of the part, vs. rotation of the machine 
> spindle conflicts with the language
> specification.  The kinematics routines need to know the relationship of 
> the axes, and the program
> that writes the G-code needs to know at least some of these details 
> (possibly the stack-up but not the
> specific distances between joints) but the language can be the same in all 
> cases (XYZABC).

it doesn't. But as you said there needs to be some close relation between 
the CAM and EMC's understanding of the setup.

> Jon

Regards,
Alex