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Customizing Firmware to upload to UM2 Board


Wcj97
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Posted · Customizing Firmware to upload to UM2 Board

So I recently got a hold of a used control board out of a UM2 printer. I’m working on a custom printer design, and I’d really like to use the board to control it; at least for now, so that I don’t have to dish out a bunch of cash for a new printer controller (eventually I’ll be using a Duet Maestro).

 

The printer I’m building will be a CoreXY, not the typical Ultimaker geometry. Also, there will be no heated bed, and for now I plan to just drive the printer straight from a computer as I don’t have the SD reader or LCD. 
 

my question is: how can I go about changing the existing UM2 firmware to work for my project? Can I upload the standard Marlin build with the correct configuration.h for my setup, or is the pinout setup differently for the UM2 version of Marlin?

 

Thank you I’m advanced!

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    Posted · Customizing Firmware to upload to UM2 Board
    3 hours ago, Wcj97 said:

    Can I upload the standard Marlin build with the correct configuration.h for my setup

     

    In short: yes, it should be that simple.

     

    Just choose the correct definition:

     

    #define MOTHERBOARD 72

     

    ...or for newer Marlin version you can use the definition from boards.h as well:

     

    #define MOTHERBOARD BOARD_ULTIMAIN_2

     

    I'm not sure how (or where) the pin definitions are included nowadays..., the correct configuration seems to be in:

    "pins_ULTIMAIN_2.h"

     

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