Subject:
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Re: Non-RCX Drop Tower
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Newsgroups:
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lugnet.technic
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Date:
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Wed, 5 Jul 2006 21:15:47 GMT
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Reply-To:
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DANNY@ORIONROBOTSavoidspam.CO.UK
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Viewed:
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12988 times
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On 05/07/06, Keith Hui <buurin@gmail.nomoreaccessv.com> wrote:
> Hey guys, check this out:
>
> http://www.brickshelf.com/cgi-bin/gallery.cgi?f=184854
>
> An amusement park drop tower ride that doesn't use RCX...
>
> And it slows down near the bottom of the fall! Very realistic.
>
> Original Chinese discussion here:
> http://www.twlug.info/forums/viewtopic.php?t=6210
>
> Here's a quick rundown.
>
> A motorized cable spool at the base pulls another cable that in turn raises the
> car to the top, then secured by a catch. A pneumatic system with 11 cylinders in
> series and a pop bottle as tank acts as the brake. The car falls when a trigger
> is released. After falling some distance the car actiavtes a pneumatic switch,
> and the cylinders expand, raising a pulley fixed atop it. By this time the "car
> cable" should have caught that pulley which stops the freefall, making the rest
> of its descent slow as the pulley continued its relatively slow ascent...
> (there's a picture in the gallery outlining the pulley setup.)
>
> Enjoy.
> Keith
Hi Keith,
I like this. I also like the skull sculpture in the background.
I am particularly tickled by the use of the pop bottle. Is the
connection sound enough there to store pressure in there, or is it
only good for the brake? I have been wandering about using the
bionacle cannisters (the original ones), with some blocked up holes,
as air tanks for some time.
As a side track, what ingenious things have people come up with as
larger substitutes to the standard pneumatic airtank? I have already
built things with 3 or 4 of those - and would love to simplify it or
get more capacity.
Danny
--
Danny Staple MBCS
OrionRobots
http://orionrobots.co.uk/blogs/dannystaple
(Full contact details available through website)
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Message is in Reply To:
 | | Non-RCX Drop Tower
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| Hey guys, check this out: (URL) amusement park drop tower ride that doesn't use RCX... And it slows down near the bottom of the fall! Very realistic. Original Chinese discussion here: (URL) a quick rundown. A motorized cable spool at the base pulls (...) (18 years ago, 5-Jul-06, to lugnet.technic)
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