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Please help. S3 moves suddenly along X-axis or diagonally and drilling the edges.


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Posted · Please help. S3 moves suddenly along X-axis or diagonally and drilling the edges.

Hello, please help if you can. My S3 print head moves suddenly along X-axis or diagonally and drilling the edges even one minute after I turn it on. First time it happed during long print and after started to happed more often. First time It completely destroyed two AA cores installed. If I check stop switches I see reaction on the screen 4-8 seconds after I press it. Checked the mainboard and found that the mainboard partially covered in sticky transparent oil, most likely coming from thermal pad. The replacement costs around $1k but I'm not 100% sure that it's the mainboard issue. Please let me know if you have any ideas.

 

 

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    Posted · Please help. S3 moves suddenly along X-axis or diagonally and drilling the edges.

    Does it happen while printing?  Or when the printer is idle and supposed to be doing nothing.

     

    What does this have to do with the print core breaking at the heat break?  Did the core hit something? What is there to hit?

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    Posted · Please help. S3 moves suddenly along X-axis or diagonally and drilling the edges.

    Thermal pad?  The bed heater?  The bed heater is just a PCB.  There should be no oils related to that at all.  I'd search more carefully for the source of the sticky stuff.  Maybe from a transformer?

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    Posted · Please help. S3 moves suddenly along X-axis or diagonally and drilling the edges.

    Hey @hawkeye,

     

    Welcome to the Ultimaker Community 🚀
    OH NO! This looks incredibly bothersome. 😖

     

    Something seems to be wrong with your X or Y limit switches.

    Then it's better to reach out to our support experts.

    You can create a ticket here: 

    https://support.ultimaker.com/hc/en-us/requests/new?ticket_form_id=360000516360

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