Easy Servo Drive?

[JAZZCNC]

I think part of the matter is my gantry is super heavy. It's probably good for cutting metal but I mostly cut wood and want fast feeds. Actually fast feeds are not a problem, it's fast changes in direction that get it confused, like zig-zag ramping on a tiny detailed pocket.

So the problem is the wrong size components not steppers are inaccurate. Wrong sized closed loop steppers will still do the same.!!
Thou It's more likely you have the accleration set to high. Or like often the case both velocity and Accel set too high.

How much does the gantry weigh.? Do you have any pics of the machine.
What drives and how much voltage are you running them with.?