Subject:
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Re: LR-11200 Completed
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Newsgroups:
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lugnet.technic
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Date:
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Mon, 21 Mar 2005 20:01:56 GMT
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Viewed:
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3415 times
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In lugnet.technic, Bob Kojima wrote:
> just amazing! i'm very impressed with the height.
>
> few questions:
>
> are your sheaves drilled? (did you drill the cross axle out so they spin
> freely?)
>
> what type of string are you using?
>
> what are the flat long support guide lines made of that are barely seen in
> this photo: http://www.brickshelf.com/cgi-bin/gallery.cgi?i=1153348 they
> look very nice. where can i get some?
>
> how much counter weight?
>
>
> can't wait to see your next crane.
>
>
> bob
>
>
> Bob,
Thanks for the comliments!
Here are the answers to your questions:
Yes, the holes have been drilled. Without doing this, there is too much
friction for the crane to operate properly.
The thin black pieces are made of Aluminum. They offer no additional structural
support to the boom itself, so I had no problem using non-lego parts there. I
made these pieces myself. I have access to a computer controlled router table
where I work, so I used it to design and cut those pieces. I made them in
varying lengths from 2" to 20" so that I could use them with the different boom
configurations that are possible with this model. They have a hole drilled in
them that is exactly the same size as a technic brick, so I use a short
connector piece along with an 2 long axle to pin them toghether, which can be
seen in the following picture:
http://brickshelf.com/cgi-bin/gallery.cgi?i=1045408
If you need some of these pieces, email me and we can work something out.
As for the counterweight, each of the individual boxes seen in this picture:
http://brickshelf.com/cgi-bin/gallery.cgi?i=1153573
contains about three pounds of lead. The acutal crane carries about 18 pounds,
and the counterweight dolly holds another 40 to 50 depending on the
configuration. I have a total of 75 lbs of counterweight.
I hope this answered all of your questions.
> --Alvin
>
>
> At 05:32 AM 3/21/2005, you wrote:
> > I have finally gotten around to posting the completion photos of my Liebherr
> > LR-11200 Crawler Crane.
> >
> > Here is the Link:
> >
> > http://www.brickshelf.com/cgi-bin/gallery.cgi?f=122183
> >
> > The overall height is 20 feet. The previous height was 18 feet, and I
> > added the
> > extra 2 feet to the luffing jib. The crane was surprisingly sturdy, even
> > with a
> > 5-10 mph wind blowing.
> >
> > I am currently building another model of a Liebherr LR-1750, and am planning a
> > dual crane lift of over 100 lbs. I will post those pictures whenever that day
> > comes.
>
>
>
>
>
> Bob Kojima
> ko@fial.com
>
> Fial Incorporated
> Telecom Monitoring Solutions
> 4343 SW Corbett Ave
> Portland, OR 97239
> 503.227.7083
> http://www.fial.com
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Message is in Reply To:
 | | Re: LR-11200 Completed
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| just amazing! i'm very impressed with the height. few questions: are your sheaves drilled? (did you drill the cross axle out so they spin freely?) what type of string are you using? what are the flat long support guide lines made of that are barely (...) (19 years ago, 21-Mar-05, to lugnet.technic)
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