Subject:
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Re: Bucke Wheel Excavator (ISCC entry)
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Newsgroups:
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lugnet.build.contests
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Date:
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Wed, 2 Jan 2002 21:25:14 GMT
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Viewed:
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1442 times
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"Holger Matthes" <matthes@fh-aachen.de> wrote in message news:GpBsyx.8AD@lugnet.com...
> Hi @ll,
>
> I build a Bucket Wheel Excavator as my entry for the 1st International System
> Creativity Contest at 1000steine.de
Holger, this is indeed a fantastic model. It is technically complex with realistic
functions and the finish is very well done.
...
> The LEGO model is 170 cm long and 110 cm high. The wheel bucket, the cables to
> lower the main boom and the whole upper structure can be rotated by 9V
> powermotors. There are also 3 Powermotors in the lower structure to "drive" the
> whole excavator on its 1500 wide Technic Chain pieces. But unfortunatelly the
> model is to heavy (over 10 kg) so the ABS gears will collapse :-(
The treaded crawlers are particularly impressive to me. I am curious as to what
exactly "collapses" due to the weight. Is it something in the drive train that can't
handle the torque required to move the model? Or is it the gears that roll on the
tracks and support the weight of the model? I built a model of over 10kg that rode
on tracks like yours and had no such problems. Obviously you know that one of the
reasons the real thing is built with tracks is because they can support enormous
weight. It seems that the same principles should apply to the model, whether made
from ABS or steel.
In any event, this is a wonderful model. Best of luck in the contest (I'm sure your
model will do well).
--
Mark Haye, markhaye2(at)home(dot)com
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Message has 1 Reply:
 | | Re: Bucke Wheel Excavator (ISCC entry)
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| (...) realistic (...) Thanks! (...) what (...) that can't (...) the (...) rode (...) the (...) enormous (...) made (...) I know the advantages of crawler to carry huge weights on slippery ground. The problem in the model are the technic axles. The (...) (23 years ago, 2-Jan-02, to lugnet.build.contests)
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