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IndustryArena Forum > Metalworking Machines > Tormach Personal CNC Mill > Series 1 (with updates) X axis cable connector
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  1. #1
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    Series 1 (with updates) X axis cable connector

    Just noticed the "waterproof" cable conduit has snapped where it meets the connector at the motor. This is the second time I've had to fix it, I guess the plastic is getting old/weak and that's where it sees the most bending.
    Anyway, has anyone changed to a different conduit or different fitting (45 or 90 deg) to help this out? It's a bit of a PIA to get at it to repair so I'd like to solve if posible
    Thanks
    M

  2. #2
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    Re: Series 1 (with updates) X axis cable connector

    I wonder if "real" LiquiTite might last longer. I think that McMaster-Carr sells something that might fit or be adaptable. Another thought is to use clear PVC (or another plastic) tubing with push-to-connect fittings, also available from McMaster-Carr, and loads of other places of course.

  3. #3
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    Re: Series 1 (with updates) X axis cable connector

    Quote Originally Posted by MichaelHenry View Post
    I wonder if "real" LiquiTite might last longer. I think that McMaster-Carr sells something that might fit or be adaptable. Another thought is to use clear PVC (or another plastic) tubing with push-to-connect fittings, also available from McMaster-Carr, and loads of other places of course.
    I would suggest a material that limits kinks!

  4. #4
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    Re: Series 1 (with updates) X axis cable connector

    I think I need to find a 45 or 90 fitting to replace the straight one, for whatever reason it tries to bend right where the cable exits the end fitting now, last time I didn't notice and the wires started random shorting and the axis started moving backwards/stopping in the middle of a program.. fun stuff there
    M

  5. #5
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    Re: Series 1 (with updates) X axis cable connector

    Quote Originally Posted by mountaindew View Post
    I would suggest a material that limits kinks!
    Clear plastic PVC tubing should meet that criteria - it is pretty flexible and it is often available in a few wall thicknesses which would allow for modest stiffness differences.

  6. #6
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    Re: Series 1 (with updates) X axis cable connector

    I think the oil in the coolant and way oil affects the sealtite type conduit that is on the machine, mine broke at the connector on the X axis, it was long enough that I cut off the bad end with a wire cutter and reinstalled it a few years back. I moved the stepper motor 90 degrees to give it more of a straight path, it is working fine now.
    mike sr

  7. #7
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    Re: Series 1 (with updates) X axis cable connector

    I might have to look into that (turning the motor) to relieve the stress on the already weak conduit.

    Does anyone know what type of conduit this stuff is? As in what fittings I can look for without having to take it apart to take the existing fitting with me to try to find a 90 degree one?
    Thanks
    M

  8. #8
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    Re: Series 1 (with updates) X axis cable connector

    I think the drawings are available on the Tormach web site?
    Otherwise I imagine you can call them. If you do, please post the answer here :-)

  9. #9
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    Re: Series 1 (with updates) X axis cable connector

    Quote Originally Posted by popspipes View Post
    I think the oil in the coolant and way oil affects the sealtite type conduit that is on the machine, mine broke at the connector on the X axis, it was long enough that I cut off the bad end with a wire cutter and reinstalled it a few years back. I moved the stepper motor 90 degrees to give it more of a straight path, it is working fine now.
    This Liquid Tight conduit from McMaster-Carr claims to be oil-resistant:

    https://www.mcmaster.com/8071k41

    Clear PVC is rate as "Good" to "Poor" in compatibility with lubricants and oils so may not be a good choice after all. Cheap enough to try out though and I may do that the next time I need to change the conduit.

  10. #10
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    Re: Series 1 (with updates) X axis cable connector

    Quote Originally Posted by Mooser View Post
    I might have to look into that (turning the motor) to relieve the stress on the already weak conduit.

    Does anyone know what type of conduit this stuff is? As in what fittings I can look for without having to take it apart to take the existing fitting with me to try to find a 90 degree one?
    Thanks
    M
    Check out Liquid Tight fittings. They are used industrially and should be readily available in Canada. Seal Proof is another brand name. I'd be inclined to go with the metal fittings as opposed to the plastic ones.

  11. #11
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    Re: Series 1 (with updates) X axis cable connector

    I've emailed Tormach to see if they'll say what brand name (or knock-off) they use, I'll post if they get back to me.
    I know the stuff that's on there is very flexible as opposed to some of the heavier conduit I've used in industry, (possibly just weakened after ten years of coolant exposure) I'm not looking forward to pulling the motor apart again to get at the wires but not looking forward to replacing the entire conduit either
    M

  12. #12
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    Re: Series 1 (with updates) X axis cable connector

    I think the main question is the size/thread of the fittings so that one that fits can be ordered...

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