Yes on second thought i think could use it like 3 closed loop for x, y and e, while leaving z open loop, this way could stick with 3 closed loops in sort of a 3.5D movement, where z only counts for 0.5 of an axis as it is used only between slices.
And i believe we are both thinking at the same thing with the closed loop. Just an wording difference of "hybrid". I thought these kinds of steppers are named "hybrid drives" as in they get commands by a step and are basically stepper drivers and motors, except they can push the "current" pedal when needed because the encoder lets them know when they need to do that to keep up position. I avoid label of pure servo, because the width of the pulse is not related to velocity or position, and they still use steppers instead of dc or ac motors. Not sure if the term "hybrid" is actually correct, but seems suitable. Anyway again, just a wording difference.
About practical use, i would rather set the start current low, and have low consumption when the motor stays still, and then it will detect itself losses and supply more current only when necessary. This means they will run much more efficient and much more cooler. In relation to the long print time, could feel some energy savings.
And i believe we are both thinking at the same thing with the closed loop. Just an wording difference of "hybrid". I thought these kinds of steppers are named "hybrid drives" as in they get commands by a step and are basically stepper drivers and motors, except they can push the "current" pedal when needed because the encoder lets them know when they need to do that to keep up position. I avoid label of pure servo, because the width of the pulse is not related to velocity or position, and they still use steppers instead of dc or ac motors. Not sure if the term "hybrid" is actually correct, but seems suitable. Anyway again, just a wording difference.
About practical use, i would rather set the start current low, and have low consumption when the motor stays still, and then it will detect itself losses and supply more current only when necessary. This means they will run much more efficient and much more cooler. In relation to the long print time, could feel some energy savings.
