Subject:
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Re: JCB JS220 Excavator
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Newsgroups:
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lugnet.technic
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Date:
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Wed, 26 Nov 2003 18:27:36 GMT
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Viewed:
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3767 times
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In lugnet.technic, Thomas Avery wrote:
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• Use of transmission parts to create the concentric drive shafts through the
turntable. (a most excellent approach ;-)
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Indeed! I have namechecked you for that one.
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• Back to back connection of cylinders- very clever. I had to try this for
myself. It appears the cylinder bottoms can slide a little, but only with
significant force. I conclude that the connection is tight enough to keep
anything from slipping during normal operation.
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They can move slightly, I’ve just looked at the leader picture and it can be
seen on the boom cylinders :-
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I thought at first glance that this model is a little less impressive than
your AC-50.
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I know exactly what you mean, and certainly it is less exciting in sheer number
of functions than the AC50-1, but personally I think there is something better
about the JS220, although I am not exactly sure what. Being able to get detailed
photos of the real machine before finishing the model helped a lot I think, very
little was left to guesswork, although in some ways this makes life more
difficult as there can be less fudges in appearance.
Jennifer
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Message is in Reply To:
 | | Re: JCB JS220 Excavator
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| (...) Jen, Some things I really liked: • Gear reduction in the car body, as opposed to being located in the superstructure. A nice solution to the backlash problem with the tranmission parts. • Use of transmission parts to create the concentric (...) (20 years ago, 26-Nov-03, to lugnet.technic)
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