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donhuevo's E3D Bowden fed X-Carriage

Discussion in 'Show and Tell' started by donhuevo, May 26, 2014.

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  1. Ziggy

    Ziggy Moderator
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    A one piece solid motor/lead screw assembly obviously eliminates the helical coupler as source of Z height variation and therefore Z ribbing. Putting a thrust bearing (ie ball bearing) inside the helical coupler achieves the same result of course.

    I assume that without a coupler you have bolted down the Z Smooth rods somehow so they don't move to accommodate the misalignment?

    Are you planning to design your own auto leveling Z nuts as well?
     
    #121 Ziggy, Jul 2, 2014
  2. donhuevo

    donhuevo Active Member

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    I did throw in a longer version of the nut for the clamped version of the auto-leveling switches. Mike found this solution on Thingiverse after I posted mine... http://www.thingiverse.com/thing:370914 I find this much more elegant than mine. As for how my smooth z rods are anchored... just at the bottom. I used the support4.stl mentioned earlier. Very stiff.
     
    #122 donhuevo, Jul 2, 2014
  3. donhuevo

    donhuevo Active Member

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    Attached Files:

    #123 donhuevo, Jul 3, 2014
  4. donhuevo

    donhuevo Active Member

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    Some wiring pictures...
     

    Attached Files:

    #124 donhuevo, Jul 4, 2014
  5. donhuevo

    donhuevo Active Member

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    The flex conduit in action...

     
    #125 donhuevo, Jul 7, 2014
    2 people like this.
  6. donhuevo

    donhuevo Active Member

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    The final abs conduit. 14 ga stranded in the harness for the bed heater terminated in a Deans connector.

    2014-07-13 21.33.19.jpg
     
    #126 donhuevo, Jul 19, 2014
  7. donhuevo

    donhuevo Active Member

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    Working on a dual z smooth rod design. It may be up and running by next weekend. Here are some pics...
    [​IMG]
    This is a single bearing per shaft with auto-level switch mount point.

    Here's the motor end...
    [​IMG]

    the belt is underneath instead of behind so the attachment points to the carriage are between both x rods.

    The new carriage...
    [​IMG]

    [​IMG]

    And finally additional smooth rods at the top to add rigidity...
    [​IMG]

    [​IMG]
    One bolt and nut clamp two rods.
     
    #127 donhuevo, Aug 24, 2014
    2 people like this.
  8. donhuevo

    donhuevo Active Member

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    the mockup...
    [​IMG]
     
    #128 donhuevo, Aug 24, 2014
    5 people like this.
  9. sal

    sal New Member

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    Looks great!! Is the nut on the Z going to float like original robo?
     
    #129 sal, Aug 24, 2014
  10. donhuevo

    donhuevo Active Member

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    my z motors are a little different. They're a motor and leadscrew in one. Here's an exploded view...

    [​IMG]
     
    #130 donhuevo, Aug 24, 2014
    2 people like this.
  11. Peter

    Peter Member

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    I'm barring up. Do want. Except for the bowden part.
     
    #131 Peter, Aug 24, 2014
  12. donhuevo

    donhuevo Active Member

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    #132 donhuevo, Nov 28, 2014
  13. Galaxius

    Galaxius Well-Known Member

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    Awesome work. Looking forward to the final build. And maybe a BOM and tute
     
    #133 Galaxius, Nov 28, 2014
  14. Mike Glass

    Mike Glass Active Member

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    Don, what is your prognosis on installing the Nema 17 External linear actuators, did you see vast improvements.

    Thanks
    Mike
     
    #134 Mike Glass, Feb 23, 2015
  15. donhuevo

    donhuevo Active Member

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    I had a pronounced ribbing issue and my z steppers were noisy. If those are your issues, then yes you can expect a vast improvement.
     
    #135 donhuevo, Feb 23, 2015
  16. Zen

    Zen Member

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    Digging this up, can you post an iges or step of the dual Bowden X carriage?
     
    #136 Zen, May 1, 2015
  17. donhuevo

    donhuevo Active Member

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    #137 donhuevo, May 2, 2015
  18. Zen

    Zen Member

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    If you could share a step or iges it would save me a ton of time.
    Thanks
     
    #138 Zen, May 2, 2015
  19. donhuevo

    donhuevo Active Member

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    hope it helps...
     

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    #139 donhuevo, May 2, 2015
  20. Zen

    Zen Member

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    Awesome! thank you so much you get all the credits when I post pictures
     
    #140 Zen, May 2, 2015
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