Hello, I've got a little problem here. I've test my axis in manual control and everything runs perfectly, but when I start my printing, the z-axis doesn't moving up at all.<br style="clear: both; font-family: Arial; font-size: medium;">I've read a post in a forum about the same problem and the solution is to change the acceleration and the feedrate of the z-axis. Therefore, I change it to the value which is mentioned in the post.<br style="clear: both; font-family: Arial; font-size: medium;"><br style="clear: both; font-family: Arial; font-size: medium;">#define DEFAULT_AXIS_STEPS_PER_UNIT {80.00,80.00,4000.00,606.09}<br style="clear: both; font-family: Arial; font-size: medium;">#define DEFAULT_MAX_FEEDRATE {500, 500, 2, 25}<br style="clear: both; font-family: Arial; font-size: medium;">#define DEFAULT_MAX_ACCELERATION {9000,9000,100,10000}<br style="clear: both; font-family: Arial; font-size: medium;"><br style="clear: both; font-family: Arial; font-size: medium;">After changing the value into the number above, the z-axis moving up at first but when the z-axis reach the 3rd layer, the axis doesn't move again. May I know what might be the cause?