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Interface GOTO command can't be canceled

Discussion in 'Interfaces' started by Lawrence Lemieux, Apr 13, 2021.

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  1. Lawrence Lemieux

    Lawrence Lemieux New
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    Once I hit the GOTO command, there's no stopping it. I've broken bits because the Z axis drops down too low and I have no way to stop the command. For one reason or another, I can't always assume that the GOTO settings I last used have remained the same.
    It would be great if the cancel command worked while the GOTO command is activated.
    Cheers
    L
     
    #1 Lawrence Lemieux, Apr 13, 2021
    allcode likes this.
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Thanks for the report, logged for future firmware update
     
    #2 Peter Van Der Walt, Apr 13, 2021
  3. Lawrence Lemieux

    Lawrence Lemieux New
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    Hi Peter,
    Has there been a firmware update that includes my above suggestion?
    Another feature I wish the interface had is this- When I pause in the middle of a cut, it would nice to be able to raise the z axis for a tool change or fix something, and then be able to continue. Needless to say, If I changed the bit, I'll have to be able to rezero the z axis.
    Is it possible to have the coordinates of where the cut was stopped to be saved in a memory somewhere so I could return to that spot to continue?
    Cheers
    Lawrence
     
    #3 Lawrence Lemieux, Nov 14, 2021
  4. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Thanks for the suggestions!

    Grbl does not accept moves during a pause - for good reason - it can crash (user intervention takes it away from where it thinks it is, can change modals accidentally, etc).
    But look into compiling in Door and Park modes - refer to github.com/gnea/grbl - Parking will lift the Z up when you open the "door" to your enclosure

    No rezeroing mid job though - it is just unsafe.

    Same for saving job positions etc - GCODE is a conversation. Automatic restarting is almost impossible - as you need all the modals, all the lead up to that point too. Cannot just start at a random line. Try it sometime, the crashes are spectacular (;
     
    #4 Peter Van Der Walt, Nov 14, 2021
    Last edited: Nov 15, 2021
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  5. Lawrence Lemieux

    Lawrence Lemieux New
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    Thanks for the quick reply. (as usual)
    I've worked around a mid cut crash by going back into Fusion 360 and re-defining my boundary to where it stopped. That worked out well, but tedious.
    However, has any work been done on my first suggestion, putting a cancel command in while the GOTO command is activated.
    Cheers
    Lawrence
     
    #5 Lawrence Lemieux, Nov 15, 2021
  6. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    It is still on the todo list.
     
    #6 Peter Van Der Walt, Nov 15, 2021
  7. Lawrence Lemieux

    Lawrence Lemieux New
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    Hi Peter, Have you been able to do the firmware update regarding having the cancel button working while using GOTO? Once again I've ruined a bit. For some reason my machine stopped halfway through the cut.
    I hit GOTO and it just crashed into the table. Had I been able to cancel it, it would have saved the day.
    Keep up the good work.
    Cheers
    Lawrence
     
    #7 Lawrence Lemieux, Jan 17, 2023
  8. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Not yet. But the key thing here is GOTO 'should' never crash the bits, if you SETZERO correctly.
    If that results in a crash, you have a different issue to solve (missed steps, slipping couplers, stretched belt (if applicable) etc


    After an uncontrolled stop, one would HOME first, to re-establish coordinate systems - operator error to hit GOTO in such a scenario
     
    #8 Peter Van Der Walt, Jan 17, 2023
  9. Lawrence Lemieux

    Lawrence Lemieux New
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    "If that results in a crash, you have a different issue to solve (missed steps, slipping couplers, stretched belt (if applicable) etc"
    Exactly, that's why we need to be able cancel the GOTO move.
     
    #9 Lawrence Lemieux, Jan 17, 2023
  10. Lawrence Lemieux

    Lawrence Lemieux New
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    We don't always realize something has gotten out of order that will affect the GOTO position.
     
    #10 Lawrence Lemieux, Jan 17, 2023
  11. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    #11 Peter Van Der Walt, Jan 17, 2023
  12. Lawrence Lemieux

    Lawrence Lemieux New
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    When I hit GOTO, I'm holding the interface in my hand. I can immediately see if it's working correctly. If not, I could quickly cancel the command.
    The time it would take me to hit a E-Stop,it might be too late. I' ot always standing right beside it.
    Why is so difficult to add it to the interface?
     
    #12 Lawrence Lemieux, Jan 17, 2023
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