Generic 5 axis shift_90_s

[wdg5555]

Just wanted to make sure, but if my rotaxis/rodir look like this

 

#Primary axis angle description (in machine base terms)

#With nutating (mtype 3-5) the nutating axis must be the XY plane

rotaxis1$ = vecx #Zero vecx

rotdir1$ = vecy #Direction vecy

 

#Secondary axis angle description (in machine base terms)

#With nutating (mtype 3-5) the nutating axis and this plane normal

#are aligned to calculate the secondary angle

rotaxis2$ = vecz #Zero vecz

rotdir2$ = vecx #Direction vecx

 

Then my  shift_90_s should be a -1 one correct?

 

#Secondary shift (determines position and angle calculation)

#plane correction 90 degree shift case (plus or minus)

#used when secondary plane is defined perp to primary zero

#EX. P - vecx, vecy S - vecz, vecy

shift_90_s : -1 #Shift pos.=1, neg.=-1

 

Also was wondering if there was a way using the generic 5 axis post or mastercam to force my secondary axis to go to the negative side.

i.e. instead of rotating to C0, A30. Rotate to C180, A-30.

Not sure when I would ever use this. Was just curious if it was possible.

 

Thanks!

[huskermcdoogle]

You can set the initial primary and secondary start points to bias the calc to start that way using misc integers typically.  This is in the generic 5x post.  Nothing more is needed.  Sometimes you would then also set the limit to negative on mi10 to force an error if it tries to go positive.