Subject:
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Re: Motorized Switch using Monkey Motor
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Newsgroups:
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lugnet.trains
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Date:
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Fri, 10 Sep 2004 20:29:22 GMT
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Viewed:
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2014 times
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In lugnet.trains, Philippe Label wrote:
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In lugnet.trains, Mark Riley wrote:
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Hi All,
Here’s an update of one of my
earlier motorized
switch designs. This design utilizes the new-style monkey(1) motor
instead of the traditional Technic mini motor:
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...
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Building diagrams can be found at my BrickShelf folder:
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Hello Mark,
All I want to say right now is THANK YOU Mark. Again a very good shot.
Now I am lurking around for useless “monkey” motors in the stock :-)
The other point is to find Digitrax decoders around here.
Can we still use a motor in the regular way even with a decoder mounted
inside?
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Hi Philippe,
You’re welcome & thanks! Perhaps Lenz decoders are more readily available where
you live? They have some pretty small ones on their site here:
http://www.lenz.com/products/decoders/index.htm
The answer to your other question is “sort of”. Most decoders have a DC
compatibility mode where the decoder will pass power directly to the motor in
the absence of a DCC signal (i.e. rapid reversals in polarity). The problem is
that this doesn’t kick in til about 3 volts, so you loose some of your low
speeds. Also, you loose about a volt off the top because of diode drops in the
decoder. I have no idea what a DCC decoder will do with a PWM signal as
produced by an RCX operating at partial power, though - I’ll have to check into
that.
Hope that helps,
Mark
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Message is in Reply To:
 | | Re: Motorized Switch using Monkey Motor
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| (...) ... (...) Hello Mark, All I want to say right now is THANK YOU Mark. Again a very good shot. Now I am lurking around for useless "monkey" motors in the stock :-) The other point is to find Digitrax decoders around here. Can we still use a (...) (20 years ago, 9-Sep-04, to lugnet.trains, FTX)
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