After getting tired of groaning jerking noise on the z axis, I changed the ballscrew and linear guides, expecting a fix. Not so, apparently the less than 1 year old counterbalance is making this noise. It only makes it the last 6” or so of the lower z travel.
The machine is a 96 vf2 with the well known nitrogen over oil counterbalance.
Is this typical? It seems like an alignment issue would exhibit itself in the upper axis when the rod end is closest to the cylinder.
I fully expected the z axis to be moveable and to try to move up when the ballscrew was out, but there was no way I could move it by strong arming it. The z servo load seems to run a fair bit higher as well.
The machine is a 96 vf2 with the well known nitrogen over oil counterbalance.
Is this typical? It seems like an alignment issue would exhibit itself in the upper axis when the rod end is closest to the cylinder.
I fully expected the z axis to be moveable and to try to move up when the ballscrew was out, but there was no way I could move it by strong arming it. The z servo load seems to run a fair bit higher as well.