Problem on 2nd print in a session (duty cycle?)

[aaronherrick]

Hi, I'm using a G2 mini Rostock.
My printer is working, I've made a few prints with it, but I noticed something last night that I wanted to check.
After doing a fairly large Print perfectly (~2 hours print time) I setup the next print. at about layer #25, I heard a sound like a stepper motor stalling, and my extruder position shifted. I don't think it ran into anything, it just started stalling

Steppers were warm but not hot. I did not check the drivers for overheating or to check vref.

Could this be a Vref issue on my stepper drivers?

[zhangxueyou]

I think the issue exists in stepper driver.

[aaronherrick]

This issue appears to be resolved by adjusting the stepper motor drivers from where they were (0.8V) to 1.0