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UM2 Hot end linear bearings. Play?


chrisr

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Posted · UM2 Hot end linear bearings. Play?

HI all.

I've noticed there's a small amount of play in my UM2's hot end linear bearings.

There's a faint but noticable "tick tick" when I rock the head to and fro and side to side. I can't work out if the play is between the bearing and the plastic housing or within the bearing itself. Recently I did some prints with XT and the head spent a lot of time thumping into blobs on the fill.... :???:

Question:

Is this play normal? Or should I be looking at sourcing a replacement set of linear bearings? In any case, does anyone know where I can buy these bearings from? (I can't see them in the shop)

EDIT:

Sourced the bearings after having phoned the shop. Too simple, no wonder I didn't think of it... :smile:

Does anyone elses UM2 hot end also have a little side to side (& to and fro) play in it?

 

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    • 2 weeks later...
    Posted · UM2 Hot end linear bearings. Play?

    Anyone?

    If any UM2 owners have a spare moment, can you grab hold of the hot end (when it's in the middle of the printer) and see if there's any play in it? Hold top and bottom of it and just gently see if it rocks back and forth or side to side with a little "click"

    Ta!

     

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    Posted · UM2 Hot end linear bearings. Play?

    Just in case anyone else has this "issue" I replaced the hot end linear bearings and there is now no play in that assembly.

    As well, sliding the old bearings on the rods they felt a bit "rough" compared with their replacements so it's possible they got damaged. I don't know for sure but suspect that may be the case.

     

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