too much play in y-direction

New Home Forum Mostly Printed CNC – MPCNC Troubleshooting – MPCNC too much play in y-direction

This topic contains 3 replies, has 2 voices, and was last updated by  Ryan 1 day, 19 hours ago.

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  • #100432

    Adam Sowers
    Participant

    Hi all,

    My gantry seems to have loosened up to the point that it has visible play in the y-direction. I can rotate the gantry slightly by hand around the x-rail and it’s visible when cutting and leaving artifacts. Please watch this video to see (filmed from the right side):

    https://www.youtube.com/watch?v=469GaPOlydE

    It’s been a while since I put everything together and I’m not sure where to start to tighten things. Any suggestions?

     

    thanks,

    Adam

    #100441

    Ryan
    Keymaster

    That is really bad. I suggest taking it apart and putting it back together. Something must have come loose or cracked.

    1 user thanked author for this post.
    #100464

    Adam Sowers
    Participant

    Thanks. I’ll have to rebuild the gantry. A couple related questions:
    1. When I first built the gantry, not all the bearings touched the conduit. The machine has been working for some time with a lot less play than what is shown here. When I rebuild should I make sure all the bearings engage?
    2. My 3d printer is somewhat out of commission but I happened to notice the “burly” parts. Worth getting the 3dp back up to print the burly parts?
    3. I was contemplating a rebuild this summer anyway to upgrade from the mini RAMBo in order to gain end stop support. Which is the preferred controller now, RAMBo or Archim?

    thanks,
    Adam

    #100780

    Ryan
    Keymaster

    1- yes

    2- The older your machine the more of an improvement you will see. But since you are having a squaring issue it is one of teh benefits of the new design. Also check the calibration of your printer with a large printed part XYZ and all the diagonals as well (the diagonals being skewed is the most common printer issue).

    3-…..tough call. Once up and running they are the same The Archim is still going through some firmware hiccups once and a while but 32bit is pretty future proof at this point.

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