Subject:
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Re: Large Technic crane
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Newsgroups:
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lugnet.build
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Date:
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Tue, 2 Mar 1999 23:26:41 GMT
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Viewed:
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690 times
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Fredrik Glöckner writes:
> "Bob Fay" <rfay@we.mediaone.net> writes:
>
> > I am curious about the base, can you pick up a load at full extension
> > of the tractor. Looks like it would tip over.
>
> You are quite correct. The crane balances well without a load, using
> four large wheels and two motors as counterweights. But loaded, and
> with the load fully extended, the balance tips over. At full extension,
> it can probably not lift much at all.
I finally got to see the page . Great work! As I was sorting Some new sets to
day I thought about the Balance of the crane . Is there a way you could let
hte counter weight on the beam move in and out either same as the car/grab. or
maybe even independant of the car so you could adjust for heavier loads ? you
could extend the counter wieght side ( providing you have the parts) to the
same distance as the load side of the crane. giving you a total diameter for
rotation. Hmmm.. hope this made some sense. I just found Lugnet and I am not
used to posting. I have been a Lego Monkey sence I got a 8860 auto chassis as
a gift in 1981 and then had to buy another one to build a four wheel drive four
wheel independant suspension flat 6 indy style racer...not any good pictures of
that though.. Anyway< thanks for sharing the Pict of the crane !
John
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Message has 2 Replies:
 | | Re: Large Technic crane
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| (...) Great idea John. Minneapolis is a sea of construction cranes right now, and I have been watching them work once in a while. There are several brands of cranes that do exactly this, they move counterweights in and out in syncronization with (...) (25 years ago, 3-Mar-99, to lugnet.build)
| | | Re: Large Technic crane
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| (...) Sounds like a good idea, yes. In fact, it is already used in Ralph Muha's camcarts at: (URL) is a site worth viewing! And if you're into Technic LEGO, you may want to look at the rest of my site, at (URL) are mostly Technic vehicles there. I (...) (25 years ago, 3-Mar-99, to lugnet.build)
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Message is in Reply To:
| | Re: Large Technic crane
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| (...) You are quite correct. The crane balances well without a load, using four large wheels and two motors as counterweights. But loaded, and with the load fully extended, the balance tips over. At full extension, it can probably not lift much at (...) (25 years ago, 28-Feb-99, to lugnet.build)
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