Hi there Michaelt83 , did you ever get that problem solved , we have a Siemens 828d controller with the same issues , usually on our fanuc look aheads we use a G05.1Q1 , and assuming the Siemens would have something more intuitive , we were given some code to input but to no avail we seem to get this jerky motions on all the arc movements on 3d machining and 2d , let us know your results
cheers