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LIMIT SWITCES SHOWING TRIGGERED ALL THE TIME

Discussion in 'General Talk' started by Mike KERFOOT, May 25, 2022.

  1. Mike KERFOOT

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    HI ALL HOPE YOU CAN HELP
    I HAVE A WORKBEE 1010 WHICH CAME WITH THE DUET CONTROLLER, I FOUND THAT IT WAS NOT
    REALY USER FRIENDLY AND LIMITED IN INFORMATION, ON USING A ROUTER, PLASMA CUTTER,
    LASER ECT, SO I OPTED TO CHANGE TO THE BLACKBOX CONTROLLER WHICH WILL HOPFULLY DO ALL THE ABOVE.

    THE PROBLEM I HAVE IS THE LIMIT SWITCHES THAT ARE ON THE WORKBEE ARE THE MICRO TYPE 2 WIRE CONNECTION, I HAVE WIRED THE SWITCHES AS PER OPENBUILDS DIAGRAM GND TO THE LEFT TERMINAL AND THE OTHER TO SIG TERMINAL , BUT THE SWITCHES ARE SHOWING TRIGGERED ALL THE TIME IN THE TROUBLE SHOOTING TAB WHAT IS THE PROBLEM ANY HELP WOULD BE GREAT THANKS IN ADVANCE

    MIKE
     
  2. David the swarfer

    David the swarfer OpenBuilds Team
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  3. Alex Chambers

    Alex Chambers Master
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    As @David the swarfer said - your limit switches will be normally closed switches - grbl by default expects normally open - read the section on $5 (and the rest of it for future reference).
    Alex.
     
  4. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Correct about the Limits Invert setting to use your old switches, but also, replacing only the controller, doesn't quite get you all the greatness of the OpenBuilds system, pair it with our Xtension Limit Switch Kit and other accesories like our XYZ Probe, Interface etc for maximum "plug and play" capabilities
     
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  5. Mike KERFOOT

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    Thanks to you all for responding so quick you are a bunch of top guys, i change all switches from NC to NO type and it now works fine homes great,
    so going to move check the calibration of the moters etc .

    once again thanks
    Mike Kerfoot
     
  6. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    We have a wizard for that :) - Wizards and Tools button on the main toolbar > Calibration menu
     
    sharmstr and David the swarfer like this.
  7. Lapocat89

    Lapocat89 New
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    Hello!
    i Have the openbuilds x32 and openbuilds Xtension Limit Switch Kit, i am having issues with the Y and Z axis, the always remain on triggered and the Xin off.
    They also seem to work 1 time out of 3, i checked all the wiring and it is ok
     
  8. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    1) provide a Grbl Settings backup for review
    2) provide detailed pictures of all wiring
     
  9. Lapocat89

    Lapocat89 New
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    ok
     

    Attached Files:

  10. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Limit 1.jpg has the rubber insulator on the wrong side (thus switch pins shorting on metal frame, might even have damaged port). Rubber is to lift switch off the metal behind it. Can't see rubber on wrong side on other switches but check that its correctly installed on the others too

    Stripped copper is too far back on almost all connectors. Exposed copper will create shorts when machine starts moving and tugging on wires. Trim before inserting into terminals

    Limits related Grbl Settings looks correct.
     
  11. Lapocat89

    Lapocat89 New
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    It has another plastic spacer, no metal touching
    I with put the wire better
    The switches work but the also seem inverted, i get the allarm to pop up when i let got of the switch not when its triggered
     

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    #11 Lapocat89, Feb 5, 2024
    Last edited: Feb 5, 2024
  12. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Lets double check your Grbl Settings (i did scan through quick on my phone) did you change anything like $5 from its defaults? (Should be $5=7)
     
  13. Lapocat89

    Lapocat89 New
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    No i have not changed $5=7

    i will do it now!
     
  14. Lapocat89

    Lapocat89 New
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    works fine with $5=7!
    i missed it in the gbrl wiki i guess, thanks, very very helpful as always!
     

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