Subject:
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Re: Pics of my "Auto Hopper" unloading hopper car
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Newsgroups:
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lugnet.trains
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Date:
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Mon, 12 Mar 2001 20:38:12 GMT
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Viewed:
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499 times
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In lugnet.trains, Frank Buiting writes:
>
> "James J. Trobaugh" <james@ngltc.org> wrote in message
> news:GA3Bs5.3xx@lugnet.com...
> > I have uploaded some pictures of my recent hopper car design that has
> > self-closing unloading doors. The "Auto Hopper" is part of a larger • project
> > that will include a loading and unloading station via an RCX. This hopper
> > was designed so that it can be driven up onto a scale and then unloaded by
> > the RCX if it's carring a load.
> >
> > The doors are "spring loaded" using a small technic rubber band, thus
> > allowing them to close tight after being unloaded.
> >
> > Also you will notice the hopper is actually 7 wide due to the over hang on
> > the top and the inverted 1x6 plates on the sides for the ribbing.
> >
> > Let me know what you think.
> >
> > http://www.brickshelf.com/cgi-bin/gallery.cgi?f=3725
>
>
> It looks very good! The overall design of the hopper looks very nice and I
> really like the working unloading doors.
>
> Are you running the hoppers over 4.5V tracks or does the load drop between
> the ties of 9V tracks? I'm also very curious how the RCX interacts with the
> hopper (you made a mechanism that can turn the black switches on the side of
> the hopper?
> Either way, I'm impressed by the design - I'm trying to build some
> auto-discharging hoppers too :-)
>
> -Frank
Yes, the unloading is happening over 4.5 volt track so that I can discharge
into a bin below. Also I'm working on making the same section of track act
as a scale by using some springs and a rotation sensor.
As for the how the RCX will interact with the hopper, I'm undecided. I have
though of replacing the levers with gears, but I more I play with the levers
I think I'll leave them on so the cars can still be used manually. So I'll
probally build some kind of clamp that is controled by the RCX and will
squeeze the levers on the Auto Hopper.
Glad you liked it,
jt
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Message is in Reply To:
 | | Re: Pics of my "Auto Hopper" unloading hopper car
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| "James J. Trobaugh" <james@ngltc.org> wrote in message news:GA3Bs5.3xx@lugnet.com... (...) project (...) It looks very good! The overall design of the hopper looks very nice and I really like the working unloading doors. Are you running the hoppers (...) (24 years ago, 12-Mar-01, to lugnet.trains)
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