Sometimes, the motors on the Series 1 need minor adjusting.
On most machines, this isn't a problem. But sometimes your motor may behave strangely and my require such an adjustment.
The symptoms are dependent on whether your motor current is too high or too low. If two low, when you try to move the motor, it will make a grinding sound. It may not even move properly or at all. If too high, your motor may be overheating (and thus loosing torque) and studdering in a repeating pattern.
Here's what you're going to need:
-Your Ceramic Screwdriver that came with your Series 1
-Your 2.5mm hex key that also came with your Series 1
-About 30 minutes
1. Completely Power off and Unplug your Series 1 from the wall (and your computer if in USB mode).
2. Remove the electronics bay panel cover on the left side of the machine.
3. Locate the stepper driver you need to adjust. You can use the pictures below as a guide:
As a reminder, the X-axis is for the movement of the machine from left to right, the Y-axis is for forwards and backwards, the Z-axis is for movements of the build platform up and down, and the E0 axis is your extruder. If you had a second extruder, it would be called the E1-axis. A third extruder would be called the E2-axis, and so on.
4. Adjust your stepper driver a mere fraction of a turn at a time. If you don't you risk destroying your stepper driver. Some stepper drivers have two potentiometers; you are adjusting the one on the right-hand side of each stepper driver.
5. Close everything up and check if the axis is question is moving more smoothly and quietly. It may be necessary to do this process a few times to make sure your stepper driver is calibrated, which is another reason why not to turn the potentiometers too far in either direction.