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Threaded Rod Coupler?

Discussion in 'General Questions' started by SteveDjarrell, Oct 8, 2015.

  1. SteveDjarrell

    SteveDjarrell Active Member

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    First please excuse me asking something that I am sure has been asked. I have been all over the forums and I am honestly loosing track of the articles I have read. I am suffering from z axis ribbing. I know the end solution for me is to upgrade to the new threaded rods ad stepper motors. I have a circa march 2015 Robo 3d R1. I have already dismantled it and added Teflon tape to the threaded rod, had to add it to the motor shaft as well. Seems it will not tighten enough. I have added Teflon tape to the top of my smooth rods as well to make then snug in the molded retaining hats. All of this has helped with the ribbing a lot but it is still not good enough for me. So with all of that, almost forgot I seem to have the best luck with Matter control, but I have cura and S3D as well, does anyone know of a printable coupler that may work better than my stock setup? I would like to try that first as the upgrade kits are sold out at the moment. Also I am on the latest firmware running a win7 system for printing. Thank you,
    -Steve
     
    #1 SteveDjarrell, Oct 8, 2015
  2. robert sanchez

    robert sanchez Active Member

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    I think @Marquis Johnson had come out with a nice adaptation that he has posted on here, I am hoping naming him here, will alert him and he will respond.
     
    #2 robert sanchez, Oct 8, 2015
  3. SteveDjarrell

    SteveDjarrell Active Member

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    Thank you,
     
    #3 SteveDjarrell, Oct 8, 2015
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    The couplers alone will not solve it, although you may see an improvement.
    Just to be clear.
     
    #4 mark tomlinson, Oct 8, 2015
  5. SteveDjarrell

    SteveDjarrell Active Member

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    I realize that so far I have gotten night and day difference with the quick fixes I have applied but the upgrade kit is sold out with no ETA. I know I need to do that but rather than piece my kit I would like to buy a complete kit from Robo. I am just looking to try the coupler while I wait for the kit to be available. I have some free time right now. Thank you for the reply though.
     
    #5 SteveDjarrell, Oct 8, 2015
  6. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Hopefully they will restock enough to at least update most of the outstanding R1 units.
    The bed upgrade they did for the beta was a signup sheet approach that worked, but not the best.
     
    #6 mark tomlinson, Oct 8, 2015
  7. Chuck Erwin

    Chuck Erwin Active Member

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    This will show my ignorance but since I got my robo3d r1 about a month ago refurbished from robo on ebay how do you tell if you have or don't have the new upgraded lead screw? I can tell they replaced some parts and it does print pretty well, I have shown no signs of ribbing.
     
    #7 Chuck Erwin, Oct 8, 2015
  8. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    If you have the upgraded lead screw there are no couplers. The lead screws are mounted on the stepper shafts.
     
    #8 mark tomlinson, Oct 8, 2015
  9. SteveDjarrell

    SteveDjarrell Active Member

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    Well I have decided to just piece the kit together and do it myself. Thank you jbigler1986 for the fairly thorough walk thru of the process. I have made my new lead nut adapters and have sourced the new steppers through Alibaba, Should be two weeks for them to arrive I can wait for the price I got them for. I went ahead and order all the rest of the hardware needed. Should come in about 50.00 to do it this way, plus I get to take it all apart again. While I am at it I have a new cable chain to install as well as the second fan. Thank you for all the responses.
     
    #9 SteveDjarrell, Oct 9, 2015

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