Working and moveable track bumpers

tstage Dec 24, 2015

  1. tstage

    tstage TrainBoard Member

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    Here's a simple tutorial for turning those plastic Walthers Hayes track bumpers into functional models...that really work!

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    Tools and Materials List:

    1. Walthers 12-pack of HO track bumpers (Walthers PN: 933-3511)
    2. 10 x 10 Scale lumber: Cut to 5/8" lengths
    3. Cyanoacrylate adhesive (CA)
    4. Razor saw
    5. Miter box
    6. Track template: 3" or less piece of sectional Code 83/100 track
    7. Tweezers

    Working and movable Track bumpers: Step-by-step instructions


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    Step 1 - Using a razor saw and miter box, cut a piece of 10 x 10 scale lumber into 5/8" long track bumper ties. You will need (2) track bumper ties per track bumper.

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    Step 2 - Using your sectional track as a template, place one of the track bumper ties in between an inner rail tie. (FYI: The bumper tie will protrude slightly higher than the rail tie.)

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    Step 3 - Place a light coating of CA onto the top of the track bumper tie.

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    Step 4 - Place the rear of the track bumper on top of the track bumper tie so that the back edges are flush with one another. Once the CA begins to take hold, remove the track bumper from the template.

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    Step 5 - Place the other track bumper tie into the track template so that it is 3 spaces from the rail tie you just glued to the track bumper. (The new track bumper tie should be situated directly underneath and slightly in from the opposite end of the track bumper.) Use a pencil to mark where the track bumper will lay across the other track bumper tie. Remove the track bumper and place a small drop of CA on each end of the track bumper tie.

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    Step 6 - Now using the first track bumper tie as a guide, place the track bumper back into the track template (into it's original location) so that it is now laying on top of the freshly glued track bumper tie. (Please read instructions in RED below)

    IMPORTANT NOTE! As you follow Step 7, apply light but constant pressure downward AND inward, so that both track bumper ties remain flush up against the inside wall of the rail ties. As the CA begins to take hold, carefully remove the track bumper from the track template and let dry. For aesthetics, paint the track bumper ties a dark color to match the rail ties.


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    The nice thing about these is that you can easily pull them up and put them back down on ANY straight "unballasted" section of track. (Obviously, they won't work on curved sections of track.) This tutorial is written for Code 83 Atlas track but it should be easily adaptable for any other code or scale.


    Testing: Where the rubber meets the road...er, the metal meets the rail


    You might be asking yourself, "How strong can these things really be?" Well, I decided to test out the design using the following setup:
    1. (1) Modified track bumper - Placed on layout mainline
    2. (1) Athearn Santa Fe "Blue Box" (BB) F7 diesel* - Set 8-10' linearly from track bumper
    3. (1) Bachmann EZ Command station throttle - Set at 100%

    Test procedure

    Athearn BB F7 was propelled head-on into the modified track bumper using the above settings.

    Q: Why did you pick the Athearn BB F7 for your test?
    A: Good question. I chose the Athearn BB F7 primarily for its heavy construction and to take advantage of its "inertia tendencies" - i.e. it's both heavy AND fast - AND the fact that, if the F7 went crashing to the floor during the testing, I wouldn't cry too much.


    Results
    The modified track bumper stopped the speeding F7...COLD!...with no ill-effects or stresses to either.

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    Last edited: Dec 24, 2015
    flexeril and WRustyLane like this.
  2. BoxcabE50

    BoxcabE50 Staff Member TrainBoard Supporter

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    Interesting. I would not have expected such good results!
     
    Josta likes this.
  3. tstage

    tstage TrainBoard Member

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    Yea, it was a pleasant surprise for me, too. Kind of amazing what just two small pieces of wood can do to the integrity of a plastic replica. And, once the bracing is painted a rail tie brown, they virtually disappear.
     
    Last edited: Dec 25, 2015
    WRustyLane likes this.
  4. WRustyLane

    WRustyLane TrainBoard Member

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    Very nice. I think the use of force actually tested the bumper to its nth degree. Just glad you didn´t hurt the engine. I´ve often wondered why they use rail bumpers for, so now I know. They actually work as designed. Thanks for the post.
     

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