Inverse time

[extanker59]

I am having problems getting my cycle time down. I think I should be able to go much faster. Just got Inverse Time feedrate in my CAM post.
Old post had 43 IPM with the diameter (setting 34) set to .9, max corner rounding (#85) set to .05-manual recommendation.
But with inverse time G93 the 4th axis jerks and when I slow it down, till it's smooth, my cycle time is out the window.
I did a search and Wizzard of H says in an older thread that parameters 786 through 789 should be set to 64. On our VM-2 786-788 are 64 but 789 is 0.

Any confirmation? Sorry. I'm nervous about changing things I know nothing about.

[KenFoulks]

No matter what, all 4 of those parameters need to be the same. A value in any of those parameters creates a very small lag in the affected axis. Without all values being equal, the lag is noticeable.

[extanker59]

Excellent! Thanks. Just made it 64 like the others. I'll try G93 again and see what happens.