Subject:
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Re: My modified 4552 crane
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Newsgroups:
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lugnet.trains
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Date:
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Tue, 19 Sep 2000 06:25:22 GMT
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Viewed:
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696 times
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In lugnet.trains, Christopher Tracey writes:
> Harvey- nice crane! I missed the 4552 by about 20 minutes when the last
> was sold out from s@h :( I've been working on my own crane as of late:
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> http://www.brickshelf.com/cgi-bin/gallery.cgi?f=1380
EXCELLENT Start! I stumbled into it via recent gallery postings before I found
your post...
> Right now, my biggest stumbling blocks are the trucks and boom. Anyone
> have any suggestions?
The trucks need to be massive. So does the frame they sit on. Think 6 wheel
and a fishbelly frame. The frame can be longer than your current version, I
think. The trucks can be long enough to allow for some center articulation of
the axle, especially if this is a self propelled crane (I dunno this
particular Brown model very well).
As to the boom, the lift harness you have now is a keeper,anyway, although can
you get more strands of cable onto it? These cranes sometimes had 8-16 strands
in the lift sheave. Booms are hard because they have a funny geometry,
thickening in the middle and narrowing at both ends, or narrowing just at one,
and also have a weird profile when viewed from the top.
My tries at booms, none of which have worked out, have involved using technic
half beams pinned together, but that has the problem of being see through,
these booms were made from huge plates and angle pieces. Putting plates inside
of the half beams didn't give me the fill in I needed.
I think your approach using horizontal plates won't work as it hasn't much
strength, you are almost certainly going to have to go SNOT, probably back to
back or inside out.
++Lar
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Message has 2 Replies:
 | | 8wide crane (was Re: My modified 4552 crane)
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| (...) thanks! (...) I've been holding off on the trucks as much as i can, I've only recently found pics of ones where the trucks are visible. (...) I plan of getting some more strands into it. I think the most I can reasonably get into it is going (...) (24 years ago, 19-Sep-00, to lugnet.trains)
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Message is in Reply To:
| | Re: My modified 4552 crane
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| Harvey- nice crane! I missed the 4552 by about 20 minutes when the last was sold out from s@h :( I've been working on my own crane as of late: (URL) modeled after an Erie-Lackawanna Industrial Brownhoist(one rebuilt as a diesel(1) for that matter). (...) (24 years ago, 18-Sep-00, to lugnet.trains)
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