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Subject: 
Re: Demag cc12600 Crawler Crane
Newsgroups: 
lugnet.technic, lugnet.modelteam
Date: 
Tue, 1 Apr 2003 06:10:38 GMT
Viewed: 
8450 times
  
On Tue, 01 Apr 2003, Beat Felber wrote:
> In lugnet.technic, Chris Davis writes:
> 
> > I can't take credit for the slew ring. I only modified it to
> > strengthen it. Beat Felber[1] takes the credit for this.
> 
> Thanks for mentioning it. I am always pleased to see that my ideas are of
> interest to other enthusiasts out there.
> I am optimistic that this turntable will handle the loads. What you have to
> know is that the tiles used for the slew ring will get some scratches caused
> by the movement of the rollers if the weight is too big.

Yeah.  I've had about 90lbs on the base/slew ring so far without
problems, but i can see the possibility for difficulty.

> When building my Liebherr LR11200 I had the problem of building a
> lightweight and strong boom as well. And I came up with a solution I am
> happy with: www.fhso.ch/~felber-b/pictures/1120021b.jpg

The only thing I've seen that would be much lighter was an all axle boom


> Good luck with your project.

It'll be fun if nothing else

c



Message has 2 Replies:
  Re: Demag cc12600 Crawler Crane
 
(...) The main problem with an all axle boom is that it can take almost no tension. This means for a long boom it bends under its own weight when horizontal. ROSCO (24 years ago, 1-Apr-03, to lugnet.technic, lugnet.modelteam)
  Re: Demag cc12600 Crawler Crane
 
(...) Here's a big LEGO crane with an axle boom: (URL) light, but you've less possibilities. With beams it's easier to build an extra drum in the boom for example. Dennis Bosman (24 years ago, 1-Apr-03, to lugnet.technic, lugnet.modelteam)

Message is in Reply To:
  Re: Demag cc12600 Crawler Crane
 
(...) Thanks for mentioning it. I am always pleased to see that my ideas are of interest to other enthusiasts out there. I am optimistic that this turntable will handle the loads. What you have to know is that the tiles used for the slew ring will (...) (24 years ago, 1-Apr-03, to lugnet.technic, lugnet.modelteam)

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