Grinding about C axis

[Ruselgun]

Hello,
Please find the attached image which shows the axes.
I want to grind a camshaft about C axis, which i am writing as for ex:
C5 V3.543
but this makes a lineer move. I have simplified the original shape into arcs, how can we make an arc this way?

Thanks so much...

[DIFF OVER]

C-X axis contouring. As the C axis rotates, the X axis feeds in and out.