Subject:
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Re: Tower crane (WAS: Adjustable 4 wheel steering)
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Newsgroups:
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lugnet.technic
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Date:
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Tue, 28 Nov 2000 00:34:23 GMT
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Viewed:
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1244 times
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Jennifer Clark <jen@vulture.dmem.strath.ac.uk> wrote in message
news:3A22D54A.66E2F8F8@vulture.dmem.strath.ac.uk...
> Ross Crawford wrote:
>
> > BTW, if you look at my
> > lugnet page (#469), you'll see I'm working on a tower crane. Looks like • Ive
> > got the "construction construction" bug, too!!
>
> Watch out, it gets addictive - before you know it you'll be wandering past
> building sites thinking "a Lego model of that would be cool, how could I • make
> the bit that does... ". The next stage is when the people you are with see
> something on a building site and suggest it would be cool for you to make • in
> lego :-)
>
> The Tower Crane seems interesting; there were some quite nice tower cranes • in
> one of the ideas books, number 8888, although I never got round to • building
> them due to a lack of pieces. You mention something about controlling the
> counterweight on the crane with an RCX; would you be making it move • backwards
> and forwards as the hook translates horizontally, in an attempt to match • the
> load?
Hmmm. Maybe I should stop now..... 8?)
In fact, I'm doing one of the ones that has a tilting boom. They're more
common here in Melbourne (Australia). And yes, one RCX will slide the
counterweight in & out. It requires the platform to actually tilt slightly
to activate the switches. I'll use a second RCX to move all the other parts.
I'm looking at using the RCXs in the counterweight, but I don't think
they'll be heavy enough, even with 6 batteries each....
ROSCO
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Message has 1 Reply:
 | | Re: Tower crane (WAS: Adjustable 4 wheel steering)
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| (...) I found with my mobile crane that the limiting factor really started to be the strength of the boom - 6 batteries at a fair distance from the fulcrum represents quite a substantial load moment with respect to lego beams, and you can actually (...) (24 years ago, 28-Nov-00, to lugnet.technic)
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Message is in Reply To:
| | Re: Adjustable 4 wheel steering
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| (...) Watch out, it gets addictive - before you know it you'll be wandering past building sites thinking "a Lego model of that would be cool, how could I make the bit that does... ". The next stage is when the people you are with see something on a (...) (24 years ago, 27-Nov-00, to lugnet.technic)
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