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Solved Z-index stretched

Discussion in 'Troubleshooting' started by J Wolf, Nov 11, 2015.

  1. J Wolf

    J Wolf New Member

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    Hi! I just got my robo 3d r1 plus two days ago and I'm loving it. Only issue is that some of my projects are getting stretched nearly 4-5 times what they should be on their z-index. I attempted to print a maze tube from thingiverse.

    However this is what I ended up with when I awoke the next morning. tube.jpg

    The tube is roughly 8 inches tall but maintained all the other dimensions. I double checked the model in Matter Control and as you can see the dimensions are showing up right there.

    setting1.JPG

    Is there a setting I may have adjusted incorrectly? Any insight to this?
     
    #1 J Wolf, Nov 11, 2015
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Sounds like incorrect firmware.
    Z steps/MM are in CONFIGURATION.H and for an R1+ should be 800.
    For an older R1 (or a beta) they would be around 2500 (a little over 4x more).

    Contact Robo and get the R1+ firmware then reload it (they don't have the R1+ firmware posted as far as I know):


    http://guide.robo3d.com/Wiki/ROBO_3D_Firmware_Release_Notes
     
    #2 mark tomlinson, Nov 11, 2015
  3. J Wolf

    J Wolf New Member

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    No luck I'm afraid. Installed the firmware given to me by the support staff but still printing the z-index stretched
     
    #3 J Wolf, Nov 16, 2015
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    So take a look at the CONFIGURATION.H and see what the Z steps/mm is.
    That is the first step. I would not assume that what they handed you is correct :)
     
    #4 mark tomlinson, Nov 16, 2015
  5. Jim S

    Jim S New Member

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    In Matter Control go to Settings & Control / OPTIONS / EEProm Settings. The first line will be "Steps per mm" and the Z: should be set to 800.

    jim
     
    #5 Jim S, Nov 16, 2015
  6. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    See, apparently if you know how to use MC ...
    Thanks, @Jim S I am clearly not a user
    :)
     
    #6 mark tomlinson, Nov 16, 2015
  7. J Wolf

    J Wolf New Member

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    That may have been it... it was set to about 2400
     
    #7 J Wolf, Nov 16, 2015
  8. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    TaDa!

    They gave you the incorrect firmware :)

    For that machine it should be 800 steps/mm.
    Fix it in the code and reflash for a permanent solution across all software.
     
    #8 mark tomlinson, Nov 16, 2015
  9. J Wolf

    J Wolf New Member

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    Hmm only thing now is that the Z axis is now printing uneven. It will print flat against the surface on the left but as it reaches the right it pulls up and drips down the filament. Weird.
     
    #9 J Wolf, Nov 16, 2015
  10. Mike Kelly

    Mike Kelly Volunteer

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    Best fix for that is a paper leveling/manual leveling of the X axis against the bed
     
    #10 Mike Kelly, Nov 16, 2015
  11. Jim S

    Jim S New Member

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    Most likely the firmware is wrong and it's not auto-leveling correctly. I had the same two problems with my purchase in June. I don't know why ROBO3D has a tough time installing and giving out the correct firmware. Even if the bed leveling was a glitch and corrects on the next print you will still need to update the firmware. Unfortunately, even when you change the EEPROM settings to 800 it will reset back to 2400 after shutting down the power. I suggest downloading version 3 from the firmware page and watch this video:



    jim
     
    #11 Jim S, Nov 16, 2015
  12. J Wolf

    J Wolf New Member

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    Awesome! That did it. You guys are the best. Resolved.
     
    #12 J Wolf, Nov 16, 2015

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