Subject:
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Re: DCC and LEGO Trains
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Newsgroups:
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lugnet.trains
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Date:
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Sun, 5 Mar 2000 06:33:52 GMT
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Viewed:
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1536 times
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At 01:20 AM 3/5/00, Larry Pieniazek wrote:
> I'm just spouting off... but one thing about the way DCC was implemented
> by Tom that struck me was.... why not allow multiple motors to be
> controlled by one receiver? I admit I only skimmed it.
>
> Suppose that in addition to modifying motors to install DCC receivers
> (call them masters) we also modified motors to cut the connection
> between the motor and the power pickups on the wheels, but LEFT the
> motor actively connected to the power connection on the top of the motor
> casing... (call these slaves)
that won't work with the current setup, since the upper power connection is
controlled seperatly from the speed - that way the lights don't dim when
you slow down the train. (which is cool on it's own). Perhaps it's
possible not to do that, and then I think your idea would work - but I
don't know that much about the DCC, only what I could understand from Tom.
> If someone commercializes DCC LEGO I will no doubt make a purity
> exception and get it. But my locos use multiple motors and I don't want
> to use two receivers per loco. Waste of channels, waste of receivers,
> waste of money.
well, maybe it's a waste of money/receivers, but you _can_ put multiple
motors on the same channel, we did it in some of the larger motors.
:)
Dan
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Message has 2 Replies:
 | | Re: DCC and LEGO Trains
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| (...) Drat. We really need two outputs, one constant and one controlled, and two inputs, one constant and one controlled. (...) Right. I knew that. I just remembered it AFTER I pressed the send button. Sigh. Thanks for the reminder though (25 years ago, 5-Mar-00, to lugnet.trains)
| | | Re: DCC and LEGO Trains
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| (...) It depends, do you want lights or to run a 2nd motor slaved to the first? You wouldn't run over the 1 A limit, since you would have (C 25 Ohms/motor, 25/2=13 ohms circuit, 9/13=less than 1 amp). You should NOT try to run 3 motors connected to (...) (25 years ago, 5-Mar-00, to lugnet.trains)
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Message is in Reply To:
| | DCC and LEGO Trains
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| I have completed a draft explanation of how I implemented DCC into LEGO Trains. This is the system/technique that we used at the latest WWW.WAMALUG.ORG show. If anyone is interested, it can be found at: (URL) feel free to comment and criticize. It (...) (25 years ago, 2-Mar-00, to lugnet.trains)
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