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Solved Horizontal smooth threads uneven...an issue?

Discussion in 'Troubleshooting' started by Rasterize, Feb 18, 2015.

  1. Rasterize

    Rasterize Member

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    lol! Metric rods it is! Thanks! :)
     
  2. Mike Kelly

    Mike Kelly Volunteer

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    Yeah the loose Z rod in the helical coupler is almost certainly the issue. You can wrap the bottom of the rod in some teflon tape then resecure it in the helical coupler.

    Best way to tell if you have M8 rods is to count the threads per Inch. There's ~20 in 1 inch for M8, and 18 for 5/16". If you have a caliper you can also measure the thread pitch. 1.25 for M8, 1.411 for 5/16"
     
  3. Rasterize

    Rasterize Member

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    Morning Gents!
    So in removing the Z rod from the helical coupler, I inadvertently moved the half inch bolt that the switch is secured to.
    Are there any guidelines or specs on where the bolt should be on the Z rod in relation to, let's say the top of the helical coupler for initial set up?
     
  4. Stephen Capistron

    Stephen Capistron Active Member

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    Nope.

    But if you go back and manually turn the rods with a piece of paper under the print head like you had previously done you'll be good to go.
     
  5. Rasterize

    Rasterize Member

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    Thanks! That was my Plan B. Thought I'd ask just in case.
     
  6. Rasterize

    Rasterize Member

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    So I adjust the z rod on the left (non motor) with the carriage all the way to the left so I just get some drag on a sheet of paper.
    When I move the carriage to the right, the horizontal rods move up on the left side and come off the left switch and bolt about a quarter inch.
    After adjusting the right the left is now to high. When I lower it, it lowers far enough to come off the switch but the nozzle isn't touching the paper. The whole right side is now supporting the carriage on the left.
    Sorry. I just re-read my post and it makes sense to me but I'm afraid you guys are going to scratch your head.
    Been going back and forth all morning proving the definition of insanity.
    Any tips?
     
  7. Stephen Capistron

    Stephen Capistron Active Member

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    A couple of pictures to go with your comment would help.

    I find the tapatalk app is actually quite good for getting pictures posted.
     
  8. Rasterize

    Rasterize Member

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    It seems like the left adjustment is useless. If I check the right side (assuming the carriage is always on the side being checked) and it's good. Then move the carriage to the left, it's to high but the bolt and switch are already a quarter inch below the "vertical rod holder assembly" giving me no further adjustment.
    What am I missing?
     
  9. Rasterize

    Rasterize Member

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    I'll try and post a few! Thanks Stephen!
     
  10. Rasterize

    Rasterize Member

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    Hopefully this will clear up what I'm saying.
    The right side is fine, Just dragging on the paper.
    The left side is not touching the paper and my nut/switch is low and not touching whatever that part is called above it (help me out there).
    So my left side is out and I can't effect it.
    If I raise the right side it will raise the left side.
    If I lower the right side it will start to dig into the paper and still not touch on the left.
    New Issue.jpg
     
  11. jbigler1986

    jbigler1986 Active Member

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    The picture on the left is how mine looks when I lift the carriage up. The nut is suppose to go inside the space on the carriage. Move the switch a little while sitting the carriage down on it. It looks like the nut just isn't lining up right and allowing the carriage to sit flush on the switch.
     
  12. Rasterize

    Rasterize Member

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    Nope. I wish it was that! :( I have to push down on the carriage to get it to seat on the nut. otherwise it pops right up to the height you see.
     
  13. jbigler1986

    jbigler1986 Active Member

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    Is there anything blocking it?
     
  14. Stephen Capistron

    Stephen Capistron Active Member

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    I'm starting to think that the smooth rod on the right is way out of square.
     
  15. Rasterize

    Rasterize Member

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    Nope. It's like the carriage is leaning to the right. I'm uploading a video to youtube to show it bouncing and will post soon.
     
  16. Stephen Capistron

    Stephen Capistron Active Member

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    If you just pick up the carriage does it slide easily up and down the z-axis?
     
  17. Rasterize

    Rasterize Member

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    I was kind of suspecting that as well. Is tht a fixable thing? I have until the 23rd to return this to Amazon. :p
     
  18. Rasterize

    Rasterize Member

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    Yes sir.
     
  19. Stephen Capistron

    Stephen Capistron Active Member

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    If you have a small framing square or speed square you could give it a quick check.

    Could also measure he distance between the smooth rods at the bottom and the top.
     
  20. Rasterize

    Rasterize Member

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    Sorry very low res but it gets the point across.
     

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