Subject:
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Re: motorized points - beating a dead horse
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Newsgroups:
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lugnet.trains, lugnet.robotics
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Date:
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Sun, 3 Dec 2000 05:35:06 GMT
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Viewed:
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46 times
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Anyone know this address? Still hammering on solving this one!
SteveB
In lugnet.trains, Steven Barile writes:
> Michael
> I can't seem to get to your URL. Can you check it and reply. I really can't
> wait to see what you have done.
> SteveB
>
> In lugnet.trains, Michael Lachmann writes:
> > You could try my switch - http://www.users.xpoint.at/m.lachmann/default.htm
> > look out for Lego and Models ... I build this thing using a rubber-band so
> > you can let it run without the switch destroying itself. Just let the motor
> > run a view seconds until the point switches it's position.
> >
> > Michael
> >
> > sebarile-MOBL <steve.e.barile@intel.com> schrieb in im Newsbeitrag:
> > G4v1EK.6yF@lugnet.com...
> > > Hi All,
> > > Currently I am attempting to build an automated hump yard. The main problem
> > > I'm tackling is the RCX controlled motorized points. I've spent 7 hours over
> > > the last two days trying to build a motorized switch track that will run
> > > forever with out ripping itself off the base plates and be very *forgiving*
> > > at the edges of both states, turn or straight. What I mean by forgiving is
> > > that the motor doesn't burn up or the gears do not get stripped off.
> > >
> > > I like really simple and elegant solutions. For instance I would like to be
> > > CPU switched with no feedback, again forgiving at the edges of both states
> > > such that the motor can spin for 1.5 secs and not reap havoc. Hanging
> > > elaborate clutch systems with differentials and angle sensors would not be
> > > my first choice. Of course beggers can't be choosers.
> > >
> > > Yes I have tried a bunch of slip gear configurations and the 2.5N/cm doesn't
> > > seem to over come the internal detent.
> > >
> > > Yes I looked at several designs on the web, I could have missed something.
> > >
> > > After at least 10 iterations I am still staring at a desktop full
> > > of disassembled bricks.
> > >
> > > Any ideas? Help?
> > > SteveB
> > > PNLTC
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