LEGO Oblique swivel joint mechanisms

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Published 2022-08-20
Several mechanisms with Oblique swivel joints are built and operated with LEGO bricks.

Chapter:
0:00 Making swivel joint modules
2:11 Making and Operating the Three-bearing swivel module (3BSM)
4:19 Making and Operating the 4-DOF oblique swivel joint Robot
6:40 Ending

My website:
akiyuki.jp/

References:

[1] Takwoonken YU: Lego Technic big turntable (2016)
   • Lego Technic big turntable  


[2] Wikipedia: Rolls-Royce LiftSystem

en.wikipedia.org/wiki/Rolls-Royce_LiftSystem


[3] S. Hirose, S. Oda, and Y. Umetani:Active Cord Mechanism with Oblique Swivel Joints and Its Control

Transactions of the SICE, Vol. 17, No. 6, pp. 686-692, 1981 (in Japanese).
www.jstage.jst.go.jp/article/sicetr1965/17/6/17_6_…

#LEGO #レゴ

All Comments (21)
  • It's really cool to see a machine move so organically... almost as though it's alive.
  • This really needs a Dune Sandworn skin and maw. Outstanding construction!
  • @ethribin4188
    Ive known and treasured Legos all my life. Yet I keep being suprised at how rediculously well designed every single Lego piece is and thus allows stuff like this here. Best "Toy" in the history of humanity.
  • @Legorama13
    I’m always amazed at the unique ways you create new and interesting mechanisms. I would’ve never thought to use 1x1 round tiles as bearings!
  • @PopSircle
    The same idea is used in the F-35 B tilting nozzle
  • @Chevyman3030
    I love how it gives off TF3:DOTM driller vibes and how it moves so organically you are truly ahead of your time when you build such amazing creations you've made
  • 4:50 is like the Pixar lamp animation Basically what I’m saying is the next step for this is making it jump as a whole apparatus
  • @Ragondarknes
    Very interesting. I will theorise here that because the joints are at 25 degrees angle, instead of 22.5 (Which would be half of 45, or 1/8th of a 360 circle), this is why some movements or positions look like they're not quite straight. But obviously you're limited in what angle you can make by the lego parts themselves.
  • @maxwhite4732
    These crazy contraptions never cease to amaze me. I can't wait to see this as a great ball contraption. It would be awesome if it could pick up the balls and then 'eat' them so they fall through the middle and out the bottom like some sort of worm creature.
  • Make it 10 times longer with a claw in the end and 4 units in total, mount them on your back with a custom lego strap around waist. You got then an awesome Doctor Octavius cosplay :D
  • good lord.. just when we think you have reach a pinnacle in design something new and amazing comes out... This is beyond cool! I like your use of pips.. will have to remember that one
  • over 10 years on youtube and that is genuinely the coollest/cleverest lego robot I've ever seen, truely remarkable work of design
  • @miniminerx
    I tried to design one of these a few months ago. Happy to see a version that works!
  • @GJBricks
    That’s amazing! Everything down to the round tiles as rollers. Incredible! Great work!
  • @LightWarriorK
    I can imagine several ways to incorporate this into a GBC Module, but mostly I'm excited to see the amazing way you will do so that I can't even conceive. Amazing work!
  • Amazing job, both building wise and filming wise. You showcased this build in such an excellent way, and all shots were lined up to the build. Just beautiful!
  • @weckar
    I love that it is effectively hollow. You could run a tube through that.
  • Interesting structure. It would have been interesting to have all the motors in the base and use universal joints or CVT joints to run all the parts. That would allow unlimited movements without thinking about wire twisting.