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Knocking noise when printing


LeoDude
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Posted (edited) · Knocking noise when printing

Dear Ultimakers,

 

I just bought a new UM2E+, on 1st prints  knocking noise was coming out from the printer. I tried to sense the culprit through touching various part during knocking, but no use. Checked all the belt and there was X axis belt lose & I tighten up, but still knocking sound there.

 

Knocking sound does not appear coming from the feeder.

 

It is definitely coming from the X axis, as I just switched the printer off, and moved the head fast on both X & Y axis's, Y no knocking, while the X showing the same knocking sound when it prints, with knocking specifically been heard at 2 positions.

 

If you divide the X axis to half the sound will be heard on the middle of the right & the left halves. 

 

 

 

Thanks in advance for the help.

 

Edited by LeoDude
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    Posted · Knocking noise when printing

    Ultimaker UK support suggested this

     

    Looks like the print head axis is catching on the 2x Z shafts at the back of the machine. 

     
    Please check this by moving the print head left to right and check if the print head axis hits them both.
     
    All you need to do is move the print head axis forward so it is not catching. You may need to pop it out of the black sliding blocks to do this. 
     
    Unfortunately without a video or guided photos (which I asked the supporter about, said unfortunately he do not have)  its mambo jambo to me.
     
    I tried to look online about any demo about fixing the problem, no luck.
     
    I am disappointed with Ultimaker support, it should be better than this. (Zortrax is with the best support ever, but their machine not as good as Ultimaker, so I had to let go of Zortrax).
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    Posted · Knocking noise when printing

    I've got a video for reseating the blocks/printhead shafts: https://ultimakernasupport.zendesk.com/hc/en-us/articles/115004168803-Reseating-Your-Sliding-Blocks 

     

    When you reseat them, make sure the Y printhead shaft that runs front to back isn't sticking out beyond the back of the rear sliding block (it will stick out the front; that's fine). The X printhead shaft (that triggers the Y-stop) should be seated far enough to the left that it fully triggers the endstop, but not so far to the left that it scrapes the left panel; I like to leave about a fingernail's width.

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    Posted · Knocking noise when printing

    fbrc8-erin you are a shinning star.

     

    Many thanks, solved it using your instructions. UK Support should learned from you. It was dead easy to fix, but needed a an illustration rather than just words.

     

    Many thanks again, you saved the day.

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    Posted · Knocking noise when printing

    Glad to help!

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