Thanks, I see that there is no advantage in using a higher kernel speed than necessary because the motor has a certain performance, as well as the inertia that it takes, as well as gearing, or how the machine is built etc. And velocity and acceleration is best when "experimented with" for each individual machine. I tried to build my machine for fast y axis movement for back and forth carving g-code.
Therefore I will turn down my kernel speed from 35000 to the recommended 25000 and re-calibrate the motor tuning. My documentation showed 35000 so that's how I set it up.
And it looks like the max feed rate would be the same as the motor tuning velocity that is set up for any particular machine. The document doesn't say that but that's just my assumption.
I'll play with feed rate and plunge rate when creating my g-code to see what happens.
Thanks, Alan