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Restart a print on a given layer


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Posted · Restart a print on a given layer

Is there a way to restart a paused print on a given layer?

 

During a print the material got stuck in the feeder, so I paused the print,  reloaded the material and was ready to resume.

The problem was, that this has happend 3 or 4 layers before I paused.

 

So ideally I would like to resume the print 4 layers before I paused it.

Does anybody know a trick how to do that, without manually editing the G-code file?

 

Thank you for your expertise.

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    Posted · Restart a print on a given layer

    no, sorry.  The UM2 is more hackable.  You have to edit the gcode.  Basically remove the layers that printed already from the gcode and you have to add a G92 for extruder position (which is broken in 5.2 firmware).  Read about G92 here:

    https://reprap.org/wiki/G-code#G92:_Set_Position

     

    Basically look at the last E value that you delete and set the position to that value.  So if the last deleted printing move was:

    G1 X123.432 Y23.4433 E1000.5123

     

    Then replace it with

    G92 E1000.5123

     

    Other wise it will try to extrude a meter on the first printing move.

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