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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Tue, 25 Nov 2003 01:17:10 GMT
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Viewed:
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3723 times
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In lugnet.announce.moc, Jennifer Clark wrote:
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I have finished the webpage for my JCB JS220 Excavator model and placed it
online here :-
http://www.genuinemodels.com/
The model is pneumatic/electric and is operated by a separate hand controller
which also contains the pneumatic pump and pressure cutoff switch. Purists
will hopefully forgive me for my previous indiscretions since this model is
100% Lego!
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Thanks for another great write-up Jen - and another great model! Been looking
forward to the details :)
One question I have though - did you investigate using an adder-subtracter in
the base? using the centre axle for drive and the clutch gears for turning might
make driving easier, eliminating the lag problem with the clutch gears, which
would only affect turning. Not sure what effect it would have on the slewing
problem though....
ROSCO
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Message has 1 Reply:
 | | Re: JCB JS220 Excavator
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| (...) I have done some tests in the past with adder-subtracter based tracked vehicles and have two major problems with them. The first is that in straight line travel you are only getting the benefit of one motor driving the tracks, whereas with the (...) (20 years ago, 25-Nov-03, to lugnet.technic, FTX)
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