motorized unicycle build

Discussion in 'Motorized Bicycle General Discussion' started by wayne z, Jan 30, 2011.

  1. buzbikebklyn1

    buzbikebklyn1 New Member

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    I'm envisioning a china doll powered Segway with gyro stabilization.....
    Naaaaaaaaa....
    And they call me nuts.
    lol
    BBB
     
  2. Allen_Wrench

    Allen_Wrench Resident Mad Scientist

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    Motorize a tandem unicycle?!?!? That assumes that the builder can find someone just as crazy as he is, AND weighs about the same, to sit on the other seat. This might be why you don't see too many of those.laff
     
  3. wayne z

    wayne z New Member

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    OK, I decided to try a steerable nosewheel for training myself to ride this thing. Guess i'll hafta call it a Wheellie bike.
    I rode it a little on tarmac at about 5 mph. The idea was to get a slow stable speed established,then ease the nosewheel up to wheelie mode.
    It wheelied easily but I don't have the tailskid installed yet so I stopped that experiment.

    The wheelbase is so short that steering is real twitchy when you let the nosewheel back down, and I think I'll try a fixed nosewheel when I add the skid or tailwheel.

    DSC_1433.JPG
     
  4. wayne z

    wayne z New Member

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    Here's the other pic


    DSC_1430.JPG
     
  5. LS614

    LS614 New Member

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    How absurd! I love it! :D great job. I was wondering when I'd see one of these, I was literally just searching motorized unicycle on google images LOL Ride safely :)
     
  6. MarkSumpter

    MarkSumpter New Member

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    [​IMG]

    I just had to giggle on this one it reminds me of the Push me Pull you from Dr Dolittle...

    [​IMG]
     
  7. mbuna420

    mbuna420 New Member

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    nice after ya get the back one on you should be able to get pretty good speeds wonder if it can have both stabilizer wheels a couple inches off the ground and steer by leaning like a unicycle looks good though oh and now ya just need a little seat for cruising. i would love to see a vid of your next ride attempt
     
  8. wayne z

    wayne z New Member

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    Yea that's the plan, to be able to balance on the center wheel and steer by leaning or using jerk twists, same as a regular unicycle.

    No, I'm not gonna do a video until I get past tripping and stumbling stage :~)
     
  9. mbuna420

    mbuna420 New Member

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    lol that's cool but we can want
     
  10. wayne z

    wayne z New Member

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    OK, I added an adjustable tailwheel to my projet. Is it now a trike??
    The more stuff I add the less cool it looks. Changed main wheel to one with more and bigger spokes,and a better tire.

    Drove it around some, right at dark again before it was ready. Used up all the adjustment getting the tailwheel a little lower. still need to lower it some more maybe. Prolly be OK with more practice.
    Wheelied it a little to let it go back on the tailwheel to see how it works. More stable on the tailwheel than the nosewheel,just can't turn.

    Nosewheel a little twitchy, easy to overcontrol. Goes into oscilating wobble at about 12 mph, due prolly to short wheelbase and not much rake angle.
    's ok, I don't wanna go faster than that anyway.
    Gonna change the 1 3/8 friction wheel(holesaw with teeth removed) to a 1" to have more throttle control at slower speed.
    DSC_1440.JPG
     
  11. msrfan

    msrfan Active Member

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    Is the rear wheel a caster or rigid? It might turn better if it swiveled. Just guessing.
     
  12. wayne z

    wayne z New Member

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    I think That I will unweld some stuff next weekend, and strectch the wheelbase and increase rake.
    I shoulda thought about it more before assembly. I should have made the wheelbase as long as I could with what I had to work with. Easier to cut off stuff to shorten it, rather than fabbing to lengthen it.
    Same thing with the tailwheel. I should have set up closer to the ground, and trimmed the strut until it felt right.
    I'm gonna play with it like it is for now, and do the mods next weekend.
     
  13. wayne z

    wayne z New Member

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    The rear wheel is fixed. I thought about using a swivel, but the only time I plan on using the wheel is for recovery from errors in balance,at faster speeds. I opted for the strait line stability of a fixed tailwheel ,same application as a wheelie bar on a motorcycle.

    Thanks for the input.
     
  14. wayne z

    wayne z New Member

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    Ok here's the latest mods to my unicycle. I have re-named it a wheelie trainer bike. I extended the wheelbase and changed to a 12" front wheel and added a seat to help me to control this thing(seat of the pants flying LOL)
    Now it handles pretty good. It's easy to get it into wheelie mode. I need to raise the wheelie bar some more and practice.
    I also need to figure out some brakes for this thing. Sure havin fun experimenting.

    DSC_1444.JPG
     
  15. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    Did ya notice that your unicycle morphed into a bicycle w/wheelie bar?
     
  16. wayne z

    wayne z New Member

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    Yea that's why I said that I renamed it the "Wheelie Trainer Bike" in my first post :~)

    I figure that if I can learn to wheele good, then it won't be too hard to transiton to a unicycle, I'll build another 1 wheeler for this motor when I think I can ride it.
     
  17. KiM

    KiM New Member

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    I must say it is one of the strangest looking builds i have seen in my years Wayne, Do you think with practice there will be enough responsive throttle control to get some long distance 'wheelies' a happening? Any chance of a lil video when you have done some more tinkering/adjusting and got some more practice in, i would be interested in watching you tame this beats hehe...best of luck, i would highly recommend a helmet too ...safety first your head ain't as hard as the ground it will hit if you go arse over tit ;-)
     
  18. mbuna420

    mbuna420 New Member

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    Nice I like the progression
     
  19. Allen_Wrench

    Allen_Wrench Resident Mad Scientist

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    Second that. Please, please, please be careful on that thing. Especially after you put brakes on it. Having to execute a panic stop could end up a lot like running down a hill and tripping on a root (personal experience). First you get a flying lesson, then you get a physics lesson (gravity) then you get a first-aid lesson.
     
  20. matthurd

    matthurd New Member

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    wayne you are one crazy old dude, i like it :D
     

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