Hard Crash When Cancelling Print

Discussion in 'Getting Started' started by Killercds, Nov 20, 2019.

  1. Killercds

    Killercds Member

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    Hey all,
    Recently I've been having a hell of an issue, where any time I've tried to cancel a print, the Duet doesn't seem to know which tool is currently active, and slams the toolhead into an already occupied dock.

    I don't really know why this is happening, though my initial suspicion is that it may be because the command is trying to be executed during a prime/purge/tool-change script.

    If anyone has any insight or suggestions, I'm all ears!
     
  2. Amr

    Amr Well-Known Member

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    can you share your cancel and Tfree gcode files
     
  3. Killercds

    Killercds Member

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    The cancel.g is the same as the one from the E3D Github
    Here's the tfree3.g, which is often the tool that gets slammed into the T2 dock.
    Please note that the positional data is a bit different from the default due to adding physical endstops for homing

    Code:
    ; tfree3.g
    ; called when tool 3 is freed
    
    ;Drop the bed
    G91
    G1 Z4 F1000
    G90
    
    ;mesh levelling off
    G29 S2
    
    ;Purge nozzle
    ;M98 Ppurge.g
    
    ;Move In
    G53 G1 X302.6 Y150 F50000
    G53 G1 X302.6 Y200 F50000
    G53 G1 X302.6 Y220 F50000
    G53 G1 X302.6 Y240.8 F5000
    
    ;Open Coupler
    M98 P/macros/Coupler - Unlock
    
    ;fan off
    M106 P8 S0
    
    ;Move Out
    G53 G1 X302.6 Y175 F50000
     
    Ntesla66 likes this.
  4. Ntesla66

    Ntesla66 Active Member

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    Yep I've experienced that "Zippp Wham Wham Wham...drop tool" from the cancel before.. I just went back to my notebook to check what i did to stop that . I moved my Y out to 160 instead of 200 in the pause.g and that fixed it for me.
     
    #4 Ntesla66, Nov 21, 2019
    Last edited: Nov 21, 2019
  5. Amr

    Amr Well-Known Member

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    is it the same tool that crashes every time and dose it crash into the same occupied dock every time? and dose this happen during the purge cycle or after. if you can share a video for this if it consistently happen
     

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