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    idlers and shoulder bolts in a corexy

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    • matt3oundefined
      matt3o
      last edited by

      okay this I bet is going to sound silly.

      I'm building (trying to) my 400x400x400 corexy and trying various motion system options.

      Am I delusional or using decoupled idlers (ie: one shoulder bolt per idler) results in better quality print compared to 2-idlers-per-bolt?

      I was using aligned idlers on the gantry then I tried with aligned idlers on the front blocks, but it seems that using separate idlers everywhere results in better quality (I'm 3d printing all the blocks).

      I don't have hard proof... I'd need to print the same model with the same filament with all the configs. Just wanted to know if you experienced something similar or you have some math to back my story 🙂

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      • mrehorstdmdundefined
        mrehorstdmd
        last edited by

        How did you mount the pulleys/shoulder bolts? What do the printed pulley mounts look like?

        If they are solidly mounted it shouldn't make any difference, except that it is easier to keep the belts aligned with the guide rails when the pulleys are stacked- there are fewer places for errors to creep in.

        https://drmrehorst.blogspot.com/

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        • matt3oundefined
          matt3o
          last edited by

          This is the front idlers block (2 shoulder bolts)
          Screenshot_20200806_131559.png

          The version with aligned idlers is basically the same, just... aligned 🙂

          This is on the gantry
          Screenshot_20200806_131624.png

          This is on one shoulder bolt
          1596132241507-screenshot_20200730_200337.png

          The extrusion on the gantry is 15x15, the frame is made of 30x30.

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          • mrehorstdmdundefined
            mrehorstdmd
            last edited by

            It looks solid enough....

            https://drmrehorst.blogspot.com/

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