Lego Technic Robotic Syncro Drive Automatic
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Published: January 11, 2010

One of my favorite inventions. The ring gear spinning on the perimeter is on one end of a differential and the system that turns the sincro-drive (all four wheels at once) is on the other. When resistance is felt on the ring gear (running into wall), the power transfers to the sincro drive rotating gear. The power follows the path of the least resistance. No sensors but it call still detect and change course all mechanically. Great video bring with hitvideo.org

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25 Comments
  1. anotherdrummer242
    5:23 pm on January 11th, 2010

    can you post more information, perhaps instructions for building this? Thanks!

  2. SoilentGr33n
    5:43 pm on January 11th, 2010

    Now THAT’S a cool contraption. You could extrapolate on it and make an automatic transmission

  3. PunkForLife55
    6:39 pm on January 11th, 2010

    very nice. most people think legos are kid toys. but really there almost not

  4. Zblj1987
    7:06 pm on January 11th, 2010

    You used a differntial to ‘feel’? Great job, really unique!

  5. aeh5040
    7:09 pm on January 11th, 2010

    Congratulations on a truly marvellous invention! I made my own version of it (see the video response). I also have two other designs for a purely mechanical obstacle-avoiding robot (see my channel).

  6. linmix
    7:28 pm on January 11th, 2010

    Really nice one. Had seen it before, but was reminded of it by aeh5040′s adaptation. I like the low speed in this one but I’m curious to see if the other one *will* turn against a shoebox…

  7. PhiloYT
    8:19 pm on January 11th, 2010

    An awesome idea I discovered through aeh5040 adaptation. Congratulations!

  8. xyzzzach
    9:00 pm on January 11th, 2010

    thank you, i wanted to be an engineer too years ago

  9. SgtDenny11
    9:24 pm on January 11th, 2010

    Dude that is some serious brain power you got great invention. I’m planning to be an engineer. : )

  10. xyzzzach
    10:06 pm on January 11th, 2010

    it’s the same, if I put it in a shoe box it will bounce around forever

  11. heribertor88
    10:37 pm on January 11th, 2010

    So do walls have a resistance equal to or greater than your finger? I don’t think it will work well on walls.

  12. MrOzzi96
    11:35 pm on January 11th, 2010

    Are you an Aircraft mechanic?? COOL!!!

  13. Spanksh
    12:18 am on January 12th, 2010

    It’s from the Lego Technic Hailfire Droid^^

  14. matejz101
    1:10 am on January 12th, 2010

    AWESOME!!!!!!

  15. bigdestroyingrobot
    1:58 am on January 12th, 2010

    awesome

  16. xyzzzach
    2:15 am on January 12th, 2010

    I am an aircraft mechanic, thanks!

  17. theunforgiven1997
    2:50 am on January 12th, 2010

    are you a engineer or something,anyway really nice work!!

  18. webdoggboy
    3:37 am on January 12th, 2010

    what is the ring from?

  19. watchfuleye1000
    4:00 am on January 12th, 2010

    Amazing !

  20. demondman50
    4:47 am on January 12th, 2010

    i dont have to say this but…your very very skilled in enginering! bravo man, GL with the masters from MIT

  21. roboman0222
    5:38 am on January 12th, 2010

    I am amazed. Wow.

  22. jt1073392
    6:03 am on January 12th, 2010

    thats so freakin cool but on that crapy washing machine lol

  23. LazzuroVolpe
    6:53 am on January 12th, 2010

    lol thats not a washing machine, thats an stovetop/oven!!! why else would there be spatulas and spoons there, and the burners were to the right of the stove

  24. trackspike64
    7:43 am on January 12th, 2010

    ok where do u get the big gears

  25. Hikar755
    8:15 am on January 12th, 2010

    Wow. I’m speechless.

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