<p>I solved this problem by <a href="https://www.repetier.com/documentation/repetier-firmware/rf-installation/" rel="nofollow noreferrer">change EEPROM value to "2"</a> in Configuration.h:</p>

<pre><code>#define EEPROM_MODE 2
</code></pre>

<p>Now ZAXIS_STEPS_PER_MM value load from firmware, not EEPROM.</p>

<pre><code>#define EEPROM_MODE 0
</code></pre>

<p>— does not result in my case.</p>

CC BY-SA 3.0
2016-12-25T12:10:29.670Z
2016-12-25T12:10:29.670Z
celebnseventeen
<p>Z axis length for my printer equals 120 mm. When I manually pass this length, from display controller menu, it's about few millimeters. Then I set the resolution (ZAXIS_STEPS_PER_MM) at <a href="http://prusaprinters.org/calculator/" rel="noreferrer">1600 steps per mm</a>. And nothing changed, step still very small.</p>

<p>I use Repetier-Firmware, Arduino Mega+RAMPS 1.4, standard Nema 17 steppers and Prusa i3 like cartesian printer.</p>

<p>This is hardware or software problem? I checked the steppers, they're fine.</p>

<z-axis><stepper-driver>
Small Z axis step: Repetier-Firmware
celebnseventeen
# Small Z axis step: Repetier-Firmware

(Asked by: username_0 on 2016-12-17)

Z axis length for my printer equals 120 mm. When I manually pass this length, from display controller menu, it's about few millimeters. Then I set the resolution (ZAXIS\_STEPS\_PER\_MM) at [1600 steps per mm](http://prusaprinters.org/calculator/). And nothing changed, step still very small.

I use Repetier-Firmware, Arduino Mega+RAMPS 1.4, standard Nema 17 steppers and Prusa i3 like cartesian printer.

This is hardware or software problem? I checked the steppers, they're fine.

**Tags:** z-axis, stepper-driver


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## 1 answers

### Answer by username_0 on 2016-12-25. Score: 2

I solved this problem by [change EEPROM value to "2"](https://www.repetier.com/documentation/repetier-firmware/rf-installation/) in Configuration.h:

```
#define EEPROM_MODE 2

```

Now ZAXIS\_STEPS\_PER\_MM value load from firmware, not EEPROM.

```
#define EEPROM_MODE 0

```

— does not result in my case.


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