I don't have this speed matching problem either. My railroad is all (well
almost) steam so each locomotive needs its own engineer (loco driver). The
railcars I like didn't have MU connections either, so no need there for any
speed matching.
"DCC" Dave Heine
Easton, PA
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of
shabbona_rr
Sent: Saturday, February 16, 2013 1:14 PM
To: [email protected]
Subject: {S-Scale List} Re: Speed Matching, etc.
I'm glad I don't have all these problems!
"S"tring boB ____________________________________________________
--- In [email protected], "Edward Loizeaux" <Loizeaux@...>
>
> An easier way is by using JMRI/Decoder Pro and let your PC/laptop do
> the diddling. It is somewhat automatic after you set the slow point
> and the fast point and choose a speed curve. The computer does all
> the hard work of matching one loco to another. Many experienced
> speed-matching folks report speed matching of four locos in about an
> hour. That would cover an A-B-B-A, at least. Of course, these
> results are AFTER the learning curve is behind them and it just
> becomes a procedure to be followed without too much experimentation.
>
--- In [email protected], "Edward Loizeaux" <Loizeaux@...> wrote:
>
> > > However my understanding is Lionel has altered the gearing on the
> > > second
> run U33's and now they won't play nice with the first run. Thanks
> Lionel - you just killed any repurchase from my POV.
>
>
>
> Poor Lionel. The first run was too fast and so S scale guys complained.
> Lionel reduced the top speed and the S scale guys are again complaining.
> They want it to go faster now. Poor Lionel, what can they ever do right?
>
>
>
> > > Boy, it seems we come up with more reasons for Lionel to abandon
> > > the
> scale market than to continue...
>
>
>
> Human nature is strange, to say the least. But the stated problem has
> an easy solution. No need to complain about anything.
>
>
>
> >> I can only assume any changes MTH makes to the former SHS drive
> mechanisms will be greeted with the same enthusiasm.
>
> >> Rich G(ajnak)
>
>
>
> I cannot wait to hear the complaints when the MTH catalog comes out.
> A field day for the pouters. Maybe I will go on vacation for a couple
> of weeks. Get away from it all.
>
>
>
> >> What does concern me is whether different locomotives will MU or
> >> double
> head.
>
>
>
> Speed matching is a proven concept with Tsunami and other modern
> NMRA/DCC decoders. I am not sure why there is concern. Many HO guys
> here in the San Francisco area do speed matching at numerous op
> sessions and club runs on a regular basis without difficulty.
>
>
>
> >> I have a first run U33c, now with the pilots fixed to the frame,
> >> scale
> wheels, Kadee couplers (actually I think they are Walthers) and a
> Tsunami decoder. It's a bit faster than I would have preferred
>
>
>
> Excessive speed can easily be reduced by setting a CV for maximum speed.
> Easy to do. No need to live with something considered to be too fast.
>
>
>
> >> Now I know some of my DCC friends are already thinking all you have
> >> to do
> is diddle endlessly with speed tables and CV's to get it right. Been
> there, done that.
>
>
>
> Diddling with speed tables and CV's is one way to get there. No doubt
> that it is the hard way to reach the goal.
>
>
>
> An easier way is by using JMRI/Decoder Pro and let your PC/laptop do
> the diddling. It is somewhat automatic after you set the slow point
> and the fast point and choose a speed curve. The computer does all
> the hard work of matching one loco to another. Many experienced
> speed-matching folks report speed matching of four locos in about an
> hour. That would cover an A-B-B-A, at least. Of course, these
> results are AFTER the learning curve is behind them and it just
> becomes a procedure to be followed without too much experimentation.
>
>
>
> Another approach, discovered by John Gibson, is to use some new
> whiz-bang software product which does it all automatically. A loop of
> track is set up with sensors at multiple points along the way. The
> "master" loco is run around at various speed steps and the
> time/speed/location data is collected and stored. Then the "slave"
> loco is run around the same loop of track and the computer matches it
> to the "master" just run earlier. Apparently it works well and is
> almost totally automatic in operation. No more diddling with CVs at
> all. Of course, you need a loop of track, a computer, numerous
> sensors, software and a learning curve to master. But then it becomes
> a slam dunk. Or so it is reported. John Gibson has the details for those
interested.
>
>
>
> >> It works in some cases where the differences aren't great in the
> >> first
> place but it is not a cure-all. There is only so much you can do when
> designs and gear rations vary too much.
>
>
>
> Just about every HO guy in Santa Clara County would disagree with that
> conclusion. Speed matching is done all the time in HO with different
> brands of locos, different motors, different gear ratios and so forth.
> It works when done properly. In the case of Lionel's U33, the gear
> ratios between the first and second production runs were changed from
> 12:1 to 15:1 which is about a 25% reduction in top speed. With the
> same motor and drive train, this is not a huge difference and can easily
be handled with speed matching.
> If MUing two U33 locos makes my heart beat faster, I would certainly
> not let a bit of speed matching stand between me and that joy. This
> is really not a problem with a Tsunami in the loco.
>
>
>
> The ultimate test for speed matching is to run both DCC
> decoder-equipped locos forward at medium speed with medium momentum. Hit
the reverse button.
> Both locos should slowly decrease speed, stop, reverse, slowly start
> up and reach medium speed going backwards - all the while traveling at
> about the same speed as each other. This is done routinely by several
> folks around here and they do not consider it unusual at all.
>
>
>
> Trying to educate, not criticize. Hope this is taken in the spirit
> intended.
>
>
>
> Cheers..Ed Loizeaux
>
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