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Solved Z Problems

Discussion in 'Troubleshooting' started by SKarls, Jan 8, 2017.

  1. SKarls

    SKarls New Member

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    Hello all,
    i just got ma used Robo 3d Printer. But i cant figure out where the problem is. The Z axis isn't homig. When i try to print something, the extruder goes up. Do i have the wrong firmware for this printer?

    Thanks for helping me
     

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    #1 SKarls, Jan 8, 2017
  2. loft

    loft New Member

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    Have you check the end stops to make sure they are triggering? This is usually the cause . The end-stops become dislodged or are not pressed when it gets re-home.

    If you go to the sticky thread in Troubleshooting called "Helpful Videos (Novice Expert)" The first video goes over your issue. It says Auto Bed leveling but in the video it talks about exactly the issue you are having.
     
    #2 loft, Jan 8, 2017
  3. SKarls

    SKarls New Member

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    Hi loft,
    thanks for your reply. Yes all stops are in the right position and are working
     
    #3 SKarls, Jan 8, 2017
  4. loft

    loft New Member

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    Cool, did you verify that the controller see's that they are triggering (M119)?
     
    #4 loft, Jan 8, 2017
  5. SKarls

    SKarls New Member

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    I tested them with my voltmeter and when i manually tip the z stop, the extruder stops going up.
    I tryed so many things till now, i cant find the problem. I don't know how many forums and videos i checked till now :/
     
    #5 SKarls, Jan 8, 2017
  6. loft

    loft New Member

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    That's very weird, do you have a closer picture of your endstops while at rest? Might help to see it
     
    #6 loft, Jan 8, 2017
  7. SKarls

    SKarls New Member

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    The other ting is, when i hit the z+ 1mm button in mc it lifts nearly 1cm
     

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    #7 SKarls, Jan 8, 2017
  8. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    This is a beta. It only has the one z endstop. Make sure you are not using R1 or R1+ firmware.

    Sent from my SAMSUNG-SM-G930A using Tapatalk
     
    #8 mark tomlinson, Jan 8, 2017
  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    The Beta firmware has different settings for the Z axis limit switch which will not work with the newer R1/R1+ firmware :)

    The endstops are reversed on the R1 and R1+ compared to the beta.
    On the beta when the switch is closed you are at Z home and with the others when the switch is OPEN you are at Z home.
     
    #9 mark tomlinson, Jan 8, 2017
    Last edited: Jan 8, 2017
  10. SKarls

    SKarls New Member

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    Hi Mark,
    many thanks!!! You made my day :)
     
    #10 SKarls, Jan 8, 2017
  11. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    You are welcome.
    I have two machines that started as Betas so I recognize them :)

    Both have been upgraded to autoleveling and one with the new bed and the other with the leadscrew repalcement.

    I suggest if you are up to it adding the autolevel conversion. It is easy and cheap.
     
    #11 mark tomlinson, Jan 8, 2017

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