I am not sure if the cables need to be generated like in model in the link below since these 3 NXT models never had building instructions and were official models from LEGO Digital Designer.
For whatever reasons the latest version of LEGO Digital Designer will not load the 3 NXT models correctly with many bricks missing and moved. It does load correctly in LEGO Digital Designer v2 which I do have an EXE of but finding the EXE would be hard to find online.
When loading these files in LEGO Digital Designer v2, it does not generate the cables for the motors like in the model in the link below and there are no cables for the sensors.
Otherwise the model should be ready to go for the OMR.
http://omr.ldraw.org/files/1711
For whatever reasons the latest version of LEGO Digital Designer will not load the 3 NXT models correctly with many bricks missing and moved. It does load correctly in LEGO Digital Designer v2 which I do have an EXE of but finding the EXE would be hard to find online.
When loading these files in LEGO Digital Designer v2, it does not generate the cables for the motors like in the model in the link below and there are no cables for the sensors.
Otherwise the model should be ready to go for the OMR.
http://omr.ldraw.org/files/1711