X carriage "vibrates" on small segments Following the question I asked here: Replace X axis motor with different model

I have a problem with my new motor. My X-axis is now moved by a 17HS3401S motor, instead of a 42SHD0217-24B motor.

On small segments, like when I need to print an arc with a lot of small straight lines, my printhead "vibrates" instead of having a smooth movement. It seems it stops for a very short amount of time before trying to move again. On longer travels there is no problem.

Do you know if it's because of the motor, or because of something else? (Vref not set properly maybe?)
The overall torque, and thus the incremental torque is less with your new stepper, this may result in less smooth operation because of moving the weight of the carriage (e.g. when you have a direct extruder mounted on the X carriage). 

You could be facing skipping steps, resulting in less accurate prints. Maybe the Vref has not been adjusted correctly, or the stepper is just not working for your application.