Mini RAMBo electronics wiring (MK2S, MK2.5, MK2.5S)

Updated 4 months ago ​by Tomáš Chvalina

Written as Mini-RAMBo, Mini Rambo or Rambo mini, the logic board used in the Original Prusa MK2 series is very simple.

Please refer to the image below regarding wire colors and correct connector orientation. If you are getting Selftest errors, or if you are encountering any issues related to electronics (motors not moving, wrong temperature readings), we suggest going once again through the detailed step-by-step guide in the manual - chapter 8. Electronics assembly.

For more information about the fuses, check this article.
Did you know, that...?
The RAMBo board is designed and built to sustain a considerable heat. It does not need any cooling even if the printer is in an enclosure.


Find out more troubleshooting tips here: Community Forum | Assembly Manuals | Youtube channel |

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