<p>Found the issue. The steps were set way to high. I lowered my steps to 500 and the steppers seem to perform as they should. </p>

CC BY-SA 3.0
2017-06-16T20:33:02.007Z
2017-06-16T20:33:02.007Z
Krizzle
<p>I just installed a Ramps 1.4 board on to my Anet A8. Everything worked as it should except for the Z axis motors. The Ramps board I have contains two headers for each Z axis motor. </p>

<p>When both motors are connected, one of the motors squeals like something awful. When I disconnect one motor it turns smooth as butter. I have tried this for both motors and when only one is connected it works as it should but does not with both. </p>

<p>Has anyone experienced this? Is there a simple remedy for this issue? Any help is appreciated. </p>

CC BY-SA 3.0
2017-06-16T19:06:57.260Z
Did you orient the plug correctly?  Flipping the plug of a correctly wired motor will reverse the direction on RAMPS.  It may be that you had them fighting each other or the current isn't high enough on the driver.
tjb1
CC BY-SA 3.0
2017-06-16T19:37:05.467Z
The plugs are oriented properly. The threaded rods are also removed so the motors shouldn't be interacting with each other. I even swapped out the driver board with another and I still get the grinding sound from the servos when they are both connected. Does the potentiometer on the driver raise/lower the current?
Krizzle
<marlin><printer-building><ramps-1.4>
Z axis issue with Ramps 1.4
Krizzle
# Z axis issue with Ramps 1.4

(Asked by: username_0 on 2017-06-16)

I just installed a Ramps 1.4 board on to my Anet A8. Everything worked as it should except for the Z axis motors. The Ramps board I have contains two headers for each Z axis motor.

When both motors are connected, one of the motors squeals like something awful. When I disconnect one motor it turns smooth as butter. I have tried this for both motors and when only one is connected it works as it should but does not with both.

Has anyone experienced this? Is there a simple remedy for this issue? Any help is appreciated.

**Tags:** marlin, printer-building, ramps-1.4

> **Comments:**
> **username_1**: Did you orient the plug correctly?  Flipping the plug of a correctly wired motor will reverse the direction on RAMPS.  It may be that you had them fighting each other or the current isn't high enough on the driver.  
> **username_0**: The plugs are oriented properly. The threaded rods are also removed so the motors shouldn't be interacting with each other. I even swapped out the driver board with another and I still get the grinding sound from the servos when they are both connected. Does the potentiometer on the driver raise/lower the current?  

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## 1 answers

### Answer by username_0 on 2017-06-16. Score: 2

Found the issue. The steps were set way to high. I lowered my steps to 500 and the steppers seem to perform as they should.


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