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Ultimo

Discussion in 'Other Builds' started by Brian Slee, Apr 27, 2014.

  1. Justin Edwards

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  2. Brian Slee

    Brian Slee Well-Known
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    WOW! Those look amazing. You have definitely got your printer dialed in.
     
  3. Joe Santarsiero

    Joe Santarsiero OB addict
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  4. nate campbell

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    Those prints are great! Have you looked at magnetic universals? When I built my delta I used them and they were amazing for ease of use (removing rods or the end effector is a job measured in single digit seconds) and no backlash. If you're not familiar with them there are two ways to make them. The first is a counter sunk magnet mounted on your end effector and carriages with steel balls on the end of your rods ( I used this method) or magnetic spheres on your rods with steel bits on your carriages and end effectors
     
  5. Justin Edwards

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    I haven't had the experience that magnetic joints do any better than rod ends. Most people make the mistake of not having a preload on their joints. In the end they're both ball joints, and the magnets have a pretty weak force and aren't non trivial to get perfectly lined up. I've only taken my rods off of my effector once in the last year. I do have magnets and tapped ball bearings, but so far have chosen not to use them. I run 8000mm/s^2 accel and 300mm/s travels which is quite a bit above average, but get pretty good prints even with simple rod ends.
     
  6. nate campbell

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    I ran similar speeds. That said if you have a direct drive extruder and not a bowden then yes the magnets can struggle with the weight.
     
  7. John R

    John R New
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    GREAT going @Brian - happy to see you're still fighting the good fight! I believe it will be worth it when Ultimo comes together!

    @Justin Edwards WOW - those are the nicest prints!! I never thought we'd see things that nice from filament printers! Is this more your build/tweak or is it typical for deltas?
     
  8. Brian Slee

    Brian Slee Well-Known
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    Thanks John,
    As always your support and encouragement are greatly appreciated.
     
  9. Justin Edwards

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    @john, Mine is a combination of trial and error and a high steps/mm extruder. There have been a few people that have built my printer now and replicated the success. I started updating my BOM and parts. https://github.com/justinledwards/BigDelta It definitely prints better than most printers, but you have to use pretty consistent filament too otherwise things don't turn out quite as good.
     
  10. Brian Slee

    Brian Slee Well-Known
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    Hi All,
    Been a catch as catch can month. I managed to get a few minutes in the shop and have been working on getting the granite prepped. So far I have been through 4 bits and a diamond hole saw and I have managed to get 1 and a 1/2 holes drilled :confused:. Never take anything for granite (yuk yuk) I will keep at it and post updates as I make progress

    As always..........Stay Tuned
     

    Attached Files:

    Mark Carew likes this.
  11. Sorkyah

    Sorkyah New
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    have you had any recent successes with getting your rig up and running Brian?
     
  12. Brian Slee2

    Brian Slee2 Guest
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    Hi Sorkyah,
    I haven't made any more progress on Ultimo but I have been in the shop recently setting up some experiments for a caterpillar drive and have added some new tools to the toolbox this month for processing concrete in anticipation of the next attempt.
     
  13. Sorkyah

    Sorkyah New
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    caterpillar drive? as in a geared drive system?
    any spoilers or sneak peeks? perhaps a new pic of boo?
    i'm not completely sold on the delta design, but i do love me some out of the box thinking and engineering.
    also a heated concrete print bed would be quite a nice feature on my future 1m┬│ core-xy project.
     
  14. Brian Slee2

    Brian Slee2 Guest
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    Yes, I am wanting to make a mold and use a belt to create a track using epoxy. Here is a rendering from my CAD file

    Boo was gracious and only charged me a dollar to take a pic of him snuggled in his spot.
     

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  15. Shaggs25

    Shaggs25 New
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    What happened to this project?
     
  16. Brian Slee

    Brian Slee Well-Known
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    It's still under development. Family health issues put it on the back burner for a while. But coincidentally I just started back to work in the shop this week. Ultimo isn't first in line but it is still in line. I plan to use the stuff I have plus a few added items to do a small gantry 1500 x 750 so I can do all of the brackets and plates for my next go at it in house.
     

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    #196 Brian Slee, Apr 11, 2017
    Last edited: Apr 11, 2017
  17. Shaggs25

    Shaggs25 New
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    Looking good! Keep at it!
     
  18. Brian Slee

    Brian Slee Well-Known
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    ;)
     
  19. Rob Taylor

    Rob Taylor Journeyman
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    Some of us are still watching! :p
     
  20. GrayUK

    GrayUK Openbuilds Team Elder
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    I'm growing old and my kids have grown up and left school now. :D:D
     
  21. Rob Taylor

    Rob Taylor Journeyman
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    My beard's at least three feet longer! :ROFL:
     
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