N scale "What's on your workbench?"

Mark Watson Oct 28, 2009

  1. DCESharkman

    DCESharkman TrainBoard Member

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    I have a dozen or so decoders to replace, many of them were from a bad batch from the manufacturer.

    On the positive side, for the locomotives with the working decoders, I was able to speed match literally over 300 locomotives over the last few days. They are running so sweet now setup in consists
     
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  2. MK

    MK TrainBoard Member

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    300 locos???!!!!! :eek: (y)
     
  3. pdavidson

    pdavidson TrainBoard Member

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    A 300 loco consist? I would like to see that.
     
  4. DCESharkman

    DCESharkman TrainBoard Member

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    Not a 300 locomotive consist, not enough power for that. I am speed matching my entire fleet of locomotives, all models and all roads with speed tables by class of motive power. For example, I have all my AMTRAK P42 Genesis locomotives using the same speed tables with a top speed of 110 smph as per prototype. All GP class locomotives with the same speed table are set to 65 smph as per prototype.

    And to go one more step into the insanity, they are also speed matched going either direction...
     
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  5. DCESharkman

    DCESharkman TrainBoard Member

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    There is one that has me stumped, check the DCC thread ARHG......
     
  6. mtntrainman

    mtntrainman TrainBoard Supporter

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    David...

    I had the exact same problem with one of mine ! swapped shells and all. Finally took the shell off and held the frame with thumb and index finger front and rear at the 'nubs' that hold the shell on. I put it on the track under power. When I squeezed the frame at those 'nubs' it quit running. Try this and see if it makes a difference before proceeding with a possible fix.

    Two schools of thought here. Shim the frame halves with thin styrene at the front and rear so the shell cant squeeze the frame to tight...OR...file those four 'nubs' down a litlle. I opted for the nub filing. A little at a time om all four nubs untll it ran fine with the shell on. The 'nubs' still hold the shell on just fine too. YMMV.
     
    Last edited: Dec 24, 2018
  7. Run8Racing

    Run8Racing TrainBoard Member

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    Ummm... doesn't everybody have over 300 locomotives ??? Sounds like some of you are a bit behind !!!
     
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  8. DCESharkman

    DCESharkman TrainBoard Member

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    That is just a starting point, I have since speed matched and configured 138 more, and I still have about 500 more to go!

    88 Amtrak locomotives done

    230 ATSF locomotives done

    75 DRGW locomotives done

    46 NS locomotives done as of this moment.
     
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  9. mtntrainman

    mtntrainman TrainBoard Supporter

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    Hey David...

    I figure you are only about 7000 locomotives short of what BNSF has in the 1:1 world....LOL :LOL:
     
  10. Calzephyr

    Calzephyr TrainBoard Supporter

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    Lol.... life used to be so simple years ago. Now we consist numerous engines which need to be speed matched. We used to be happy to put a couple of non matched locos and run a consist of twenty to thirty cars. Every time I see threads with things like this makes me feel there are not enough hours in the the day for me to do what is needed to run my trains. Still lol... just thinking of putting DCC into my favorite locos... I will need to live a long time... and I was not even thinking of the speed matching issues.


    Sent from my SM-J737T using Tapatalk
     
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  11. DCESharkman

    DCESharkman TrainBoard Member

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    Speed matching takes just a few minutes once you have yourself setup up to do it. All it takes is the same Speed table on the locomotives you want to run together, a simple loop of track and a way to verify the speed, be it a stopwatch on the cell phone or the AccuTrak speedometer, about $60.

    So a loop of Kato Unitrak, a speedometer is all you need. The other stuff that makes life easy is JRMI to program the decoders. You can create a template to be used over and over again to make sure all the settings are consistent. Just duplicate the template file for your locomotive, change the road number and then write all sheets and it it is ready for speed matching. It is really that easy!

    Not sure why the photo got rotated, it was not taken sideways.......
     

    Attached Files:

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  12. Calzephyr

    Calzephyr TrainBoard Supporter

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    Thanks for the explanation... I was expecting a lot of CV manipulations per locomotive. I'm in the same 100's of locomotives to program situation... plus 100's more needing DCC upgrade. I need to retire from my paying job... to take on a non-paying job of model railroading .

    Sent from my SM-J737T using Tapatalk
     
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  13. DCESharkman

    DCESharkman TrainBoard Member

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    I am more than happy to help you with the speed matching. All it takes is a little planing and the right investment in decoders. The key point is to have all the similar locomotives that you want to run together using the speed table and then using the trim to adjust and dial in the final speed you want.

    As seen here:
    upload_2018-12-26_11-43-57.png
    With trim, I do not need to make any changes in the speed table to match speeds. This is my FVM Gevo speed table and you can see a small difference in the Forward and Reverse Trim. In this case the value of Trim sets the top speed of the locomotive to a prototypical 75 smph. In other cases the Trim Numbers are in the 70's or the 80's. With a Kato unit the Trim values are as low and the high 20's and low 30's in some cases. As long as the speed table is the same for the units you want to speed match and consist, it does not even matter the decoders, in the FVM models I use Zimo MX622N decoders and in the Kato units I have either Digitrax or the TCS version that supports Trim. There is even a few ESU Loksound units with the same speed table and they all run with each other with no issues whatsoever. There is a different speed table for a SD40, and again the same speed table setting with trim lets me run Intermountain SD40 units with Kato SD40 units with no issues at all.
     
  14. MK

    MK TrainBoard Member

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    David, that's a very interesting concept. I'm going to have to try it out next time.
     
  15. pdavidson

    pdavidson TrainBoard Member

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  16. 4-4-0

    4-4-0 TrainBoard Member

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    unnamed.jpg
    a new building to replace the plastik ones.
     
  17. DCESharkman

    DCESharkman TrainBoard Member

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    After 9 days of decoder programming and speed matching, I have run out of energy to do any more....... So my workbench is currently clear.

    Time now will be spent by designing a layout with a friend!
     
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  18. pdavidson

    pdavidson TrainBoard Member

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    Nice. Now you can spend someone else's money.
     
  19. DCESharkman

    DCESharkman TrainBoard Member

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    No funds were spent, locomotives and decoders were paid for a long time ago, life just kept me from getting to them until now.
     
  20. DCESharkman

    DCESharkman TrainBoard Member

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    I posted this method on the Atlas Forum a few years before it was shut down. It was also posted on Trainboard several years ago, before the last upgrade of the site software. And it was also posted on Barstow Ricks website several years ago.
     

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