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IndustryArena Forum > MetalWorking Machines > Tormach Personal CNC Mill > M8 (coolant on) randomly stops working?
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  1. #1
    Join Date
    Nov 2013
    Posts
    402

    M8 (coolant on) randomly stops working?

    M8 randomly stops working? Does anyone else have this Glitch with their Pathpilot software and/or machine?

    I will be running a batch of parts, and randomly, (out of nowhere on part# 10, or part #14, or whenever), the machine will stop reading M8 code.
    Suddenly, the coolant won't turn on?

    I hit the COOLANT ON tab on-screen, and the coolant comes on for that part run. M9 stops it at the end

    Then, next part, again No Coolant!! M8 didn't work.

    So I go to the MDI Bar, and manually type in M8, Enter, and the coolant comes on. Type in M9, Enter, coolant shuts off.

    Next part, the M8 is working again!!

    Huh?

    This has happened to me several times in the past.

    Really weird glitch. Has anyone else experienced this?

  2. #2
    Join Date
    Jun 2014
    Posts
    1780

    Re: M8 (coolant on) randomly stops working?

    I have never had this happen, maybe a control cable glitch or something similar?

    The only thing that comes to mind was in sprutcam tapping cycle the rapid would change to a feedrate speed but this was each time I ran the program in the same place.

    edit: maybe the relay contacts or something similar intermittent
    mike sr

  3. #3
    Join Date
    Jun 2005
    Posts
    656

    Re: M8 (coolant on) randomly stops working?

    Quote Originally Posted by RussMachine View Post
    M8 randomly stops working? Does anyone else have this Glitch with their Pathpilot software and/or machine?

    I will be running a batch of parts, and randomly, (out of nowhere on part# 10, or part #14, or whenever), the machine will stop reading M8 code.
    Suddenly, the coolant won't turn on?

    I hit the COOLANT ON tab on-screen, and the coolant comes on for that part run. M9 stops it at the end

    Then, next part, again No Coolant!! M8 didn't work.

    So I go to the MDI Bar, and manually type in M8, Enter, and the coolant comes on. Type in M9, Enter, coolant shuts off.

    Next part, the M8 is working again!!

    Huh?

    This has happened to me several times in the past.

    Really weird glitch. Has anyone else experienced this?
    I've had the pump get gummed up so it won't start a few times, but it's not been random on then off then on again.

  4. #4
    Join Date
    Mar 2020
    Posts
    218

    Re: M8 (coolant on) randomly stops working?

    In a previous version of pathpilot, under very specific conditions, it would skip the first M01 in a program but otherwise, I've never seen it skip a line of code as you're describing.

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