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  1. #1
    Rat Patrol Chicago
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    The Clockwork Motorcycle Project

    National Geographic's Mad Scientists TV show challenged me to make a clockwork motorcycle in 48 hours.





    www.clockworkmotorcycle.org

    http://www.clockworkmotorcycle.org/w...ke.avi.torrent

  2. #2
    Pedaled too far. Artkansas's Avatar
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    Quite an interesting project. Well done.

    That could be a thrilling ride without a rachet to limit the power, if you could keep the wheels from spinning.
    "He who serves all, best serves himself" Jack London

    Quote Originally Posted by Bjforrestal View Post
    I don't care if you are on a unicycle, as long as you're not using a motor to get places you get props from me. We're here to support each other. Share ideas, and motivate one another to actually keep doing it.

  3. #3
    Rat Patrol Chicago
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    Quote Originally Posted by Artkansas View Post
    Quite an interesting project. Well done.

    That could be a thrilling ride without a rachet to limit the power, if you could keep the wheels from spinning.
    That's my next step... I need to put a big fat wheel on the back to give it some traction, and then step down the gearing a bit. On the show we had to toss the escapement because it was taking too long to work out... Da Vinci just used a metal flap to limit the release.

  4. #4
    Senior Member Captain Blight's Avatar
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    -1973 Motobecane Mirage -197? Velosolex L'Etoile -'71 Raleigh Super Course
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    This is *Really * interesting to me, I've been toying with this idea for a couple years. My thought was to use a flat-wound spring in a custom hub. That way you can use the spring as a brake, which also rewinds it. YOu wouldn't get a ton of range out of it, my thought was just as hill-help or to launch across an intersection.
    '71 Raleigh Super Course ("Loose Change")
    '74 Raleigh Professional
    '7? VeloSolex L'Etoile rando build ("Chocolate Star")
    '77 Peugeot UE/O-8/10/9 mongrel
    '81 Trek 616
    '87 Trek 560 Pro Series
    '88 Schwinn Impact ("Burning Chrome")
    '92 Specialized Allez Comp
    '08 Specialized Crossroads winterbike ("Icicle the Bicycle")

  5. #5
    Senior Member Flying Merkel's Avatar
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    Be an interesting drag bike. Some spring powered movements use a small fan as a speed limiter. Maybe a propeller on back could moderate the spring while provide some propulsion. Are those overhead door springs?

  6. #6
    Rat Patrol Chicago
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    Quote Originally Posted by Captain Blight View Post
    This is *Really * interesting to me, I've been toying with this idea for a couple years. My thought was to use a flat-wound spring in a custom hub. That way you can use the spring as a brake, which also rewinds it. YOu wouldn't get a ton of range out of it, my thought was just as hill-help or to launch across an intersection.
    That's how the idea came about, as regenerative braking. Really you could just use a flat leaf that bent as it stored energy, because you'd constantly be "charging" and "draining" your "battery". This is the concept that eludes most people- yeah, it's inefficient, and has a low storage capacity, but you're using waste power, and you only need enough to start at the red lights.

    However, what I found by pursuing this in with three methods- flywheel, compressed air, and springs- is that the flywheel is vastly superior for this purpose. However, I still think the springs have potential for, say, a pedal-charged tiller or plow, things normally too energy-greedy for human propulsion. That, and short-track drag racing.

    There was a Dutch invention that let you charge 4km of riding by pedaling for 1km:

    http://www.youtube.com/watch?v=891mB...layer_embedded

    In the end I think it didn't catch on because you're using first-hand, not second-hand energy. To me this is all about waste power. Imagine charging up a tank of air with your brakes, then every day when you get to the shop you load that into the main tank, and everybody does it, and you run your tools off of it...

    I did consider using a fan, since most of my designs came from music boxes and clocks (not too much else that's clockwork anymore, just some toys). However, I built a "verge and foliot" escapement for the motorcycle, which was left off in the rush to complete the bike in 48 hours. Those are indeed overhead door springs, I got 1200 lbs of lift for that equivalent amount of force.

  7. #7
    Super Moderator Allen's Avatar
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    Atomic batteries to power; turbines to speed
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    Johnny, that is fantastic. Well done.
    Quote Originally Posted by unterhausen
    I believe that in this case "solid meh" means "so 'meh' that it could never be anything more than 'meh', and yet also no less than 'meh' -- in a word, exactly 'meh'"

  8. #8
    Randomhead
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    really impressive

  9. #9
    Senior Member
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    Cheap Kulana Moondog, AMF Hercules, various second hand freebie bikes
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    Neato!

  10. #10
    Senior Member
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    03 GT Avalance 3.0, junk walmart Next chopper, hand made 9' long chop, tall bike, and several piles of parts
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    Payphone its Astro, KLN springfield! how have you been? This is an awesome machine. i hope i get an opportunity to see this in person one day. Good to see your alive and well!
    03 GT Avalanche 3.0-owned since new, some mods, some road rash. In the midst of upgrades

    07 home built chopper-9' long 5 ft tall at the grips. in the middle of a refurbish. Repairing road rash, rust and a blown up rear tire.

    02 Walmart Next drug dealer full suspension chopped and raked. 12 feet total black iron pipe forks, weighs just under 90 lb.

    several projects in various states of construction-decontruction

  11. #11
    Member Kitsky's Avatar
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    Amazing lovely and wonderful work!

  12. #12
    bike whisperer Kimmo's Avatar
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    copy/paste links: http://velospace.org/node/36949 http://velospace.org/node/47746 http://velospace.org/node/47747
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    I love it : )

    But the torrent's dead : (

    Are there any remaining filesharing sites that would be of use?

  13. #13
    Rat Patrol Chicago
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  14. #14
    ride lots be safe Creakyknees's Avatar
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    holy **** that is awesome!
    "have fun and be kind"
    - an internet post

  15. #15
    "The Veiled Male" Zorba's Avatar
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    That thing scares me. If the spring ever got loose....
    -Zorba
    "The Veiled Male"
    http://www.doubleveil.net
    Biria EZ board 3-spd

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