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Z,Y limit always trigged

Discussion in 'Control Software' started by Mohamma393, Nov 5, 2023.

  1. Mohamma393

    Builder

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    Hello

    When tried to home machine only Z axis move down (should be up ) few mm then stop and show me error

    checked troubleshooting and see z,y limit triggered all the time but when trigging by hand and hold become green until i release then show error that i need to home machine

    i ignore that and wanted to check how probe work with spindle (glad i did ), when alligator touch the bit, probe is active
    Checked continuity between X limit switch gnd and machine frame no contact
    Only spindle , then guess what, if remove USB cable or laptop power cable No continuity
    and continuity only after jogging or some commands
    When start up or stoped for while, no continuity :D

    so USB IS the problem mixing GND and EARTH
    I use 2 cables that come with BBX4&BB32

    but yes , limits still triggered all the time even if i disconnect them from BB32 , laptop and vfd power cable removed

    how to deal with that

    probing is fine, just remove laptop cable then ok(actually I didn’t use it for long time)
    But limit switch I don’t know what to do
     
    #1 Mohamma393, Nov 5, 2023
    Last edited: Nov 5, 2023
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

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    Did you remember to load machine profile? CONTROL up to date on V1.0.370 > Grbl Settings tab > Select machine from the list > Save and reset when prompted
     
  3. Mohamma393

    Builder

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    Thank you, selected lead1515 then fixed
    Now need change step/mm and invert axis that easy

    Notice that happened again when enabled homing in another software, did it again with openbuilds software now all good

    Now understood why OP software has some Grbl settings numbers and some selections, not all selections enable/disable

    Cant thank you enough
     
    #3 Mohamma393, Nov 5, 2023
    Last edited: Nov 5, 2023
  4. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

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    Stick to good software, like CONTROL for setup work. 3rd parties doesn't always know what our machines and our controllers needs.
     
    Mohamma393 likes this.

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