Subject:
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Re: Spring/elastic wind-up engine
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Newsgroups:
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lugnet.technic
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Date:
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Tue, 15 May 2001 20:30:04 GMT
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Viewed:
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643 times
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In article <GDE8qK.AD6@lugnet.com>, Dave Cheng <dmc@vex.net> wrote:
> Does anybody have any links to a Technic engine/transmission similar to
> those found in wind-up toy cars? I realize that it isn't as simple as
> winding an elastic around an axle since a clutch mechanism would have to be
> used to allow the drive wheel(s) to freewheel once the spring/elastic
> energy is used up.
Sorry, I know following up my own post is a little weird, but allow me to
clarify what I mean by "wind-up toy car": I'm thinking more along the
lines of those cars that are wound up by rolling them backwards, and then
zoom forwards once released. I wasn't referring to a key-type winding
mechanism.
Thanks again.
--
Dave Cheng <dmc@vex.net>
http://www.vex.net/~dmc/
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Message has 3 Replies:
 | | Re: Spring/elastic wind-up engine
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| In lugnet.technic, Dave Cheng writes: At school, our class was given exactly this challenge. We we're all split into groups and given about an hour to construct such a vehicle. (...) It was EXACTLY that simple, as that was exactly what I built. I (...) (23 years ago, 15-May-01, to lugnet.technic)
| | | Re: Spring/elastic wind-up engine
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| (...) I once made a car with a technic liftarm 1 x 3 attached to a cross-axle and some gears to the back wheels. (URL) attached the rubber bands in another part of the chassis and lay them over the technic liftarm and then wound up the engine by (...) (23 years ago, 16-May-01, to lugnet.technic)
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Message is in Reply To:
| | Spring/elastic wind-up engine
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| Does anybody have any links to a Technic engine/transmission similar to those found in wind-up toy cars? I realize that it isn't as simple as winding an elastic around an axle since a clutch mechanism would have to be used to allow the drive (...) (23 years ago, 15-May-01, to lugnet.technic)
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