<p>I recently burnt out one of the MOSFETS on my RAMPS 1.4 board on my Sintron Kossel clone so have upgraded it to a RAMPS 1.6.
Now my printer seems to only print 50 % of the intended size.</p>
<p>After the machine homes it only comes down about 50 % of the distance and so starts printing in mid air.</p>
<p>I thought it might have been the driver steps? The DRV 8825 drivers are 32 steps instead of 16. I changed this value in the firmware but it didn't make any difference.</p>
<p>Any suggestions?</p>

Data from Firmware is not written into EEPROM on its own after updating your firmware. You need to send a
```
M502
```
to "seed" the firmware numbers as that is restoring the "default" settings in it. If you are unsure what is currently the EEPROM setting, use
```
M503
```
first.