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CURA does not connect to my UM2E any more


herman-wouters

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Posted (edited) · CURA does not connect to my UM2E any more

After replacing the service screen of my UM2 extended, Cura does not connect any more with my computer (Windows 10)

I use cura 4.5

I get the message ER05

I set the settings back to the fabric settings.

But still I get the ER05 message.

I checked all the cableconnections and the Z switch works properly.

So I tried to upload the firmware, but Cura says that there is no USB connection.

I tried another cable and computer, but still no result.

 

Please help me

Edited by herman-wouters
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    • 3 weeks later...
    Posted · CURA does not connect to my UM2E any more

    You have two problems that I think  are unrelated:

    1) After rebuilding your printer the printer shows an ER05 for the Z-axis being broken

    2) Cura 4.5 can't upload firmware from a Windows 10 computer

     

    I want to focus on problem 1 first, since when we get that working you don't mind about problem 2 anymore.

     

    There is an article on this forum where people reported the same problem when the 5V fan connector was connected to the wrong pin header. In the middle of the board is a connector marked JP3 - 8/16 step, when you connect the fan here it causes the stepper motor to make smaller steps and missing the Z-switch.  The right connector is 4cm to the right and marked J34 - 5V Fan.

    See this thread for more details and photo's: 

     

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    Posted · CURA does not connect to my UM2E any more
    On 4/22/2020 at 10:54 PM, CarloK said:

    You have two problems that I think  are unrelated:

    1) After rebuilding your printer the printer shows an ER05 for the Z-axis being broken

    2) Cura 4.5 can't upload firmware from a Windows 10 computer

     

    I want to focus on problem 1 first, since when we get that working you don't mind about problem 2 anymore.

     

    There is an article on this forum where people reported the same problem when the 5V fan connector was connected to the wrong pin header. In the middle of the board is a connector marked JP3 - 8/16 step, when you connect the fan here it causes the stepper motor to make smaller steps and missing the Z-switch.  The right connector is 4cm to the right and marked J34 - 5V Fan.

    See this thread for more details and photo's: 

     

    This would be strange, because I did not replaced any connector. I orderd the + upgrade now and will see if the problem wille be solved after installation.

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