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URGENT Help Needed

Discussion in 'General Talk' started by rbrown55, Mar 12, 2024.

  1. rbrown55

    rbrown55 New
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    I am trying to cut an order for a customer and my right Y axis keeps locking up and stops moving during the cut it even did it while trying to get the router positioned for a cut after realigning everything. Is their a tech support line I can call I need to get some immediate help as I need to ship this order today

    THere is some what i call wobble sounding noise and a kind of whining as it is moving....there seems to be some extra play in the screw when I try and move it with my hand but not sure wht to try and adjust at this point
     
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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  3. rbrown55

    rbrown55 New
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    I haven't changed any settings...I'm not that technical lol

    My guess is mechanical at the moment
     
  4. rbrown55

    rbrown55 New
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    7 of the 8 wheels are all tight...one is pretty loose and spins easy by touch.
     
  5. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    If you make a video of the stall we can see if we see/hear anything to give you more clues

    Tight is technically wrong. Just touching is correct. Too tight will damage wheels and cause binding:

     
  6. rbrown55

    rbrown55 New
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    ok i will adjust the wheels

    Is the blue light on the controller box supposed to go off when you turn the power off? Mine stayed on
     
  7. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Yes, if USB is still providing power
     
  8. rbrown55

    rbrown55 New
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    ok, i did have the usb connected....

    adjusting wheels now and will give it a try
     
  9. rbrown55

    rbrown55 New
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    Video attached….hopefully
     

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  10. rbrown55

    rbrown55 New
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    made a video
     
  11. rbrown55

    rbrown55 New
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    Also when I get towards the back of the y axis it has more issues with binding and when I try to manually move the screw to line it up it is a bit hard to move and feels like maybe something is bent....hard to describe
     
  12. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Close visual inspection, perhaps partial teardown.
     
  13. rbrown55

    rbrown55 New
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    I am sorry but what does that all mean?
     
  14. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Means, you gotta poke around there - you' re the only person at the machine - only one that can look and feel and inspect. You may need to take some things apart for a better view / feel.
    Feel where it gets stuck. Listen where weird noises come from. You being there, can check for damage to the thrust bearings, or see if the leadscrew is bent, ot check whether you forgot some spacers during assembly.
     
  15. rbrown55

    rbrown55 New
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    Yea sorry…I misread your comment. Did the video I sent provide any clues?
     
  16. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    It doesn't stall in this video

    But the leadscrew sounds dry - spray some Dry/PTFE lubricant (Don't use oil it will degrade the Delrin nutblock)
    The leadscrew might be slightly bent by the whipping we can see, no need to immediately replace, but dial down Max Rate in Grbl Settings for Y to about 70% of current values
     
  17. rbrown55

    rbrown55 New
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    Can you please give me instructions on dialing down the Y value?
    Thanks Peter….is this something I just go into the main settings and change ? I am not familiar with any coding if that is what it takes. I am away from my computer and machine until Thursday unfortunately as I had to take off rather quickly.
    I did manage to get what I needed cut by changing the workspace direction and limiting the amount of movement on the y axis but that won’t work past today
     
  18. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    CONTROL > Grbl Settings tab > Scroll down to $111 Max Rate for the Y axis. Change value. Save and Reset when prompted


    Grbl v1.1 Configuration
     
  19. rbrown55

    rbrown55 New
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    Peter

    Will this be ok for the ptfe spray? want to try that before tearing things down

    upload_2024-3-15_11-10-16.png
     
  20. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Yes! Perfect! They say its Teflon based
     
  21. rbrown55

    rbrown55 New
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    Ok well I am about to spray it on and cross my fingers
     
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  22. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Crossing with you!
     
  23. rbrown55

    rbrown55 New
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    This video was after about 5 passes back and forth after spraying it…what you think? Still sounds funny especially on the backend but it hasn’t locked up yet

    Should the screw be kind of wobbling up and down? Seems somewhat logical since it is so long and the point of contact with the x axis would be the stiffest point but I have no idea what I should be seeing
     

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  24. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Actually looks and sounds "good"!
    Have seen far worse! Your whipping is not excessive, squeeking noises are gone, looks relatively smooth (will get better over time - nutblocks take a couple runs to bed-in)
    Might have a bit of leadscew bend on the end there but I don't think its bad enough to warrant a new leadscrew.

    • That dust hose getting squashed in the back there might someday cause a bind-up , consider adding a Swing Arm
    • or it might cause EMI docs:blackbox-x32:faq-emi [OpenBuilds Documentation] (Not a shielded/earthed hose - will get quite charged with static electricity from the particles it sucks in rubbing on the inside - when it discharges to nearby frame/wiring it causes EMI symptoms) - earthing it should be something you consider doing
     
  25. rbrown55

    rbrown55 New
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    Thanks Peter

    The vacuum hose actually does go over the top as I have a poor man swing arm if you will where I attached a small rope to a hook and run the hose through it. I had just been vacuuming the floor and disconnected the vacuum to empty it so I tossed the hose up on the table
     
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  26. rbrown55

    rbrown55 New
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    I do have one other symptom I will video and post separately on the z axis. Soon i hope. Have so many things going on at the moment
     
    Peter Van Der Walt likes this.

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