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My BlackBox and Limit Switches failed in the most unexpected way

Discussion in 'CNC Mills/Routers' started by Steve French 17, Nov 17, 2021.

  1. Steve French 17

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    So - today I'm milling a sign and it starts up just fine - it runs for a few minute and I leave it unattended. I check on it about 20 minutes later and I discover that the machine has jammed itself against one side of the gantry (a limit switch has failed, due to improper placement). The steppers are still on at this point, and Interface is still working.

    I turn the black box off for safety, and rotate the steppers away from the side of the gantry and while the cooling fan turns on in the BlackBox nothing else happens. Interface is not on, the steppers are not engaged, and the stepper lights are not on.

    Does anyone have any idea where to start on troubleshooting?
     
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Contact the OpenBuilds Partstore for assistance - log a ticket via Support
     
  3. David the swarfer

    David the swarfer OpenBuilds Team
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    rotating a stepper motor makes it generate voltage, so moving the gantry generated enough volts to make the fan turn.
    if you MUST move the gantry by hand, do so very slowly to minimize the volts generated and fed backwards into the controller.
     
  4. Steve French 17

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    Should the login I have for the forum work for the support site? My login is not working there.
     
  5. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    No, login button is for support agents. Use the New Support Ticket option under "How can we Help you":

    IMG_20211118_191912.jpg
     
  6. Steve French 17

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    I did that - but now I can't track the ticket (I have not received any sort of notification)

    sf
     
  7. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    You'll get a reply shortly, check your Spam folder too
     
  8. Steve French 17

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    I just created a second one (sorry) - still no reply to either ticket via email - the forum system sends them quickly though
     
  9. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Yeah, the support agent will get to yours shortly and type up a reply. Just sit tight :)
     

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