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Blackbox - Relay problem - M3 M5

Discussion in 'Controller Boards' started by snsAlexander, Aug 25, 2020.

  1. snsAlexander

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    Hey,

    I've just bought my blackbox and I was testing it yesterday on my Sphinx. I can't seem to activate my spindle ( Makita ) through thee onboard relay.

    I verified the jumper setting on the control board with the documentation. It doesn't react when I try to send the control M3 or M5.

    Hardware problem? If so, how can I test it?
     
  2. Peter Van Der Walt

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

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    Send it M3S1000 (if $30=1000 in grbl settings). GRBL needs an S Word because the spindle output can also be used as PWM.

    Also make sure you have a the jumper installed docs:blackbox:jumper-relay [OpenBuilds Documentation]
     
  3. snsAlexander

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    Thx Peter,

    It works fine now. Is there a possibilty to just send M3 instead of M3S1000? M5 works fine without M5S1000.

    Grtz
     
  4. Peter Van Der Walt

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

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    You'll have to recompile Grbl and disable the Variable Spindle feature: gnea/grbl but there shouldn't be any need to, all Grbl compatible CAMs and Posts handle the S-Word for you, as does most Grbl GUIs (OpenBuilds CONTROL does add the S Words)
     
  5. snsAlexander

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    Ok Thx I've got my answers and the Sphinx works great
     
    Giarc and Peter Van Der Walt like this.

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