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Thread: X-axis stuttering and grinding

  1. #1
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    X-axis stuttering and grinding

    Hello everyone .... I seem to have a problem with my X-axis when starting the machine and I could use help solving it.

    When I turn the machine on when the X-axis is trying to go home it Stutters and a grind like noise happens and it never gets home.

    When the machine is tuned off I have no problem moving either axis.

    I checked all connections if there were any loose

    I don't have sensors ... I have micro switches ..... I checked those and seem to be ok

    Ii it possible the controller has gone bad?

    Thank You in Advance for any and all help

    Brian
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  2. #2
    I would check the stepper motor and the belts. Sounds like something is slipping. maybe the stepper gears grinding. I don't know a lot about them but seems like a good place to start looking.
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  3. #3
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    Hi Bert Thanx for the reply .... I thought the same thing .... but when there is no power everything is smooth .... wonder if it may be the Stepper Motor Driver ?

    Brian
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  4. #4
    Could be a broken wire to the stepper. That will make it stutter.
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  5. #5
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    Quote Originally Posted by Michael Henriksen View Post
    Could be a broken wire to the stepper. That will make it stutter.
    What he said, stepper motors usually do not have gears and are built pretty good. Look for a loose or broker wire connection.
    Retired Guy- Central Iowa.HVAC/R , Cloudray Galvo Fiber , -Windows 10

  6. #6
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    Michael and Bill ... spot on .... Broken blue wire ....Thank You very much for that info .... may I ask what is the best way to repair the wire ? .... solder the joint ? .... do I do all 4 wires so they are the same length?

    Thanx again

    Brian
    Last edited by Brian Book; 11-25-2017 at 3:11 PM.
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  7. #7
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    Quote Originally Posted by Brian Book View Post
    Michael and Bill ... spot on .... Broken blue wire ....Thank You very much for that info .... may I ask what is the best way to repair the wire ? .... solder the joint ? .... do I do all 4 wires so they are the same length?

    Thanx again

    Brian
    Is it in a high flex area of the wire bundle, if so when you solder the wire it will tend to break again at the solder joint from the flexing. If its just in a part that never flexes, then splice in some of the same stranded wire, use heat shrink tube for insulation put on the wire first and slide down after you solder. Was it cut or broken from handling or how?
    Retired Guy- Central Iowa.HVAC/R , Cloudray Galvo Fiber , -Windows 10

  8. #8
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    Hi Bill .... it was in it is a high area of flex .... so how would one overcome this problem of breaking? .... I can only assume that it broke because of the heat shrink surrounding all 4 wires .... but just a guess on my part .... I did put heat shrink around the repair ..... but I did solder it .... I needed my machine up and running for some Christmas orders .... I can do a proper repair after these go out ..... how do you suggest I repair the break ?

    I really appreciate all the help I received

    Brian
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  9. #9
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    Great to hear that you found and repaired the problem.
    I would suggest moving the splice joint to an area that doesn't flex, yes it means having two solder joints, but if it in an area that doesn't move it should last forever.
    Scott
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  10. #10
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    Hi Scott .... a good suggestion .... I'll have to what gauge the wire is and get some from the electronics store .... I noticed it's silver wire rather than copper .... not sure it's good to mix them ?

    Thanx again

    Brian
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  11. #11
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    Quote Originally Posted by Brian Book View Post
    Hi Scott .... a good suggestion .... I'll have to what gauge the wire is and get some from the electronics store .... I noticed it's silver wire rather than copper .... not sure it's good to mix them ?

    Thanx again

    Brian
    You want stranded copper wire extra flexible if you can find, auto parts stores usually carry but if you have a Radio Shack that would be the place. If you use crimp on connectors the flexing won't bother as much. I get the good crimp on splices at Home Depot in the electrical dept. Not up to the Mil Spec ones I used in the Air Force but pretty darn good. The USAF went to crimp on connections way before my time in 1961-65. If it was good enough for air craft it will be fine for yours. They required two crimps one on the wire and another on the insulation x2 for splices.
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  12. #12
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    Hi Bill .... another good idea .... you wouldn't happen to have a part number for the crimp on splices ? .... will check it out for Extra Flexible Copper wire

    Thanx again

    Brian
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  13. #13
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    Quote Originally Posted by Brian Book View Post
    Hi Bill .... another good idea .... you wouldn't happen to have a part number for the crimp on splices ? .... will check it out for Extra Flexible Copper wire

    Thanx again

    Brian
    Home Depot carries a good grade of crimp on splices, here link below, but if you can get T&B they are better quality. Key is crimp the wire and then back a ways to crimp the insulation.

    https://www.homedepot.com/p/Gardner-...-121/202522999
    Retired Guy- Central Iowa.HVAC/R , Cloudray Galvo Fiber , -Windows 10

  14. #14
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    Thanx for that info Bill

    Brian
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  15. #15
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    Brian,

    You can find all parts you need at Sayal electronics outfit closes to you. There are number of locations in southern Ontario.
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