I just got done all the hardware and running of wires for my new build which I am extremely excited to share with all of you but first I am having an issue and wanted to make sure I’m not missing something stupid. Anyways I connected my Rambo board for the first time today that I ordered from here to do the initial test run of the build and everything worked except the Y1 motor was grinding back and forth. I posted a short video of it here: https://youtu.be/Fs5Min6J4sg.
to sum up what I’ve already tried:
-tested continuity from the Y1 motor to the Y1 port ( Results: SAT )
-Switched the Y1 and Y2 connectors on the Rambo board (connected Y2 to Y1 port and Y1 to Y2 port). (Results: Y1 worked correctly and Y2 exhibited the grinding issue)
-switched pin assignments between Y1 and Y2 in Marlin to rule out software. (No change, Y1 continued to grind)
Conclusion: Its not the motor, and it isn’t a loose connection, I have every motor wired up the same in terms of which coils to which pins on the Rambo so I don’t believe its wired incorrectly. It isn’t software based on the Pin assignment change. The only thing I can see it being is that I got a bad board some how. Hopefully that’s not the case and someone can point out something I might of missed. Thank you. Once I figure this out I will be sharing my build with a couple of features that I think people will like…
Thanks again for any help,