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Thread: What are you buying this month? (September 2021)

  1. #21
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    @spruslayer Very cool. If you feel like it, you can fine tune the steam chuff to the wheel revs with CV57 and CV58 of the decoder. The procedure is described in section 13.3 of the Loksound 5 manual.
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    Thank you steampower.
    I am still a learning rookie at this but i have learned how to do the decoder installs but not up on the fine tuning.
    I have several other Loksound micros that need a little fine tuning
    I need to watch some 1 to 1 vids of steamers to understand the relation between the chuff sounds and the movement of the wheel turns

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    Quote Originally Posted by spruslayer View Post
    I need to watch some 1 to 1 vids of steamers to understand the relation between the chuff sounds and the movement of the wheel turns
    Different from a combustion engine, steam works on both sides of the piston in a steam cylinder, so two-cylinder locomotives (like your 844) have four chuffs per wheel revolution and three-cylinder locomotives have six. Using a two cylinder engine as an example, every fourth chuff occurs at the exact same position of the piston and hence at the same position of the wheel. You can change the interval between chuffs using the CVs so every fourth chuff happens at almost exactly the same place every rev, so it's just a matter of using a stop watch and observing.

    Here's a video showing the principle:
    https://www.youtube.com/watch?v=wZSoMxTb1ZM

    But as I said, you can do it whenever you feel like it. The setting doesn't affect any other parameters like motor drive or whatever, so it may be a good way to start CV programming if you are new to that. Some of the other CVs can be fairly exotic and complex and even as an electronics guy by trade, I shy away from those
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    20210925_131011.jpg
    Attended a train show today in Taylor, PA. Stopped at my LHS afterwards. I decided to wear a mask at the show, even though I am vaccinated. (Hope to get the booster this week)
    From various vendors at the show:
    A tractor and trailer combo of unknown manufacturer, don't think they originally came together. The tractor looks like a foreign prototype, trailer is lettered for Pacific Intermountain Express (PIE). A shed from the defunct "Father Nature" castings. A bag of 11 castings of a banded stack of pipes, unknown manufacturer. The Revell Mini-kit model of an SR-71 for something different to build. Mostly HO-scale, O-scale, three rail and Die Cast cars at this show, but a few N-scale. Too much of the N-scale was old junk like Aurora, old Bachmann and Life-like.
    From the LHS:
    A Con-Cor three pack of 45' trailers lettered for the Boston & Maine. These will be repainted into a generic scheme. Some Testors thinner as mine is getting dirty and a new Atlas Brush 20/0 for detail work.
    Cheers all and stay safe.
    Maurice
    Attempting to apply the K.I.S.S. principle to Model Railroading.

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    Quote Originally Posted by SteamPower4ever View Post
    Different from a combustion engine, steam works on both sides of the piston in a steam cylinder, so two-cylinder locomotives (like your 844) have four chuffs per wheel revolution and three-cylinder locomotives have six. Using a two cylinder engine as an example, every fourth chuff occurs at the exact same position of the piston and hence at the same position of the wheel. You can change the interval between chuffs using the CVs so every fourth chuff happens at almost exactly the same place every rev, so it's just a matter of using a stop watch and observing.

    Here's a video showing the principle:
    https://www.youtube.com/watch?v=wZSoMxTb1ZM

    But as I said, you can do it whenever you feel like it. The setting doesn't affect any other parameters like motor drive or whatever, so it may be a good way to start CV programming if you are new to that. Some of the other CVs can be fairly exotic and complex and even as an electronics guy by trade, I shy away from those

    Let's hope I don't muddy the waters to much...

    On a real steam locomotive (two-cylinder) the wheels on one side of the locomotive are mounted 90 degrees out of phase with the wheels on the other side (called quartering). This is done to prevent dead spots in the drive cycle. If, for example, the left drive rod was all the way to the front (90 degrees) or all the way to the rear (270 degrees), the right side rod would be at either 0 degrees (top) or 180 degrees (bottom), allowing the right drive rod to either push or pull as necessary.

    This may or may not be apparent on scale models, depending on the manufacturer. It doesn't really matter on a model as the drive power is not delivered to the axles through the side rods. The most important thing on the model as that the wheels on each side are mounted at the same angle on the axle in order to prevent side rod binding.

    The chuffs are produced when each cylinder exhausts it's steam.

    As @SteamPower4ever said, steam can drive the cylinder piston either forwards or backwards.

    Chuff #1 - Left Cylinder Push
    Chuff #2 - Right Cylinder Push
    Chuff #3 - Left Cylinder Pull
    Chuff #4 - Right Cylinder Pull.
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    I don't always stop for trains, but when ... oh wait!, Yes I do.

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    Quote Originally Posted by spruslayer View Post
    I need to watch some 1 to 1 vids of steamers to understand the relation between the chuff sounds and the movement of the wheel turns
    Here is a really good example from a revenue steam event in Germany in 2013. The first two engines (class 44) have three cylinders each and the helper (class 41) is a two-cylinder engine. You can clearly hear the difference. The 44s have a six stroke rhythm (which often sounds like 2 x 3 strokes) and the 41 has a four stroke rhythm.

    https://www.youtube.com/watch?v=jV2mdyLfxao
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    Default Moose Breaks the Bank with Giant Purchase...

    Moose cracked open the wallet for a mega-purchase (totaling $1.20 + tax) whilst accompanying Mrs Moose to a rather large bead store:

    1_PossiblyPipes_20210930_090927.jpg 2_PossiblyPipes_20210930_090934.jpg

    Glass beads, 0.0775" outer diameter x 3/4" long.

    What'da'ya think, scale ~ 12" OD x 10' long pipes, so perhaps used in the 1930's for culverts, sewage treatment plants, well drilling shafts? Moose shall ponder...
    = >

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    Moose lives! I think I'll celebrate with a Guinness!

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    Quote Originally Posted by el Gato Gordo View Post
    Moose lives! I think I'll celebrate with a Guinness!
    You and Moose both!
    = >

    ~ Moose (Co-founder of the Mt. Tahoma & Pacific Railroad, located some where in the Pacific Northwest)


    "Beware the Train of Thought that Carries no Freight..." "Reading is for morons who can't understand pictures..."

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    September purchases:
    - Two wiring/electrical books from online used book retailers
    - Two coils of 18 Gauge wire (Canadian Tire)
    - Box of plaster (Canadian Tire)
    - Used DC controller off ebay (This is an upgrade/backup for my Kato M2 starter set power pack.)

    IMG_3357.jpg

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    Another weekend, another train show! This was a new show this weekend sponsored by a new hobby shop, about a half hour drive for me. Nice turnout of people, some of the same vendors from last weeks show but plenty of new ones. I mainly go looking for one particular Delaware Lackawanna Caboose Atlas produced some time ago, unfortunately, nobody had one. Maybe at Allentown show. Here's my haul:
    20211003_111713.jpg
    A nice porcelain Conrail sign, two prototype manuals, and a Delaware & Hudson t-shirt. A custom Atlas Reading Blue Mountain & Northern boxcar (completely in-appropriate for my time period but I seem to be collecting RBMN cars). An 40 foot trailer of unknown manufacture lettered for Santa Fe R.R. I have several trailers now that I need to strip and re-paint in a generic lettering. An unpainted but assembled Deluxe Innovations Armco corrugated steel building (out of production) that I couldn't pass up at only $3! Finally, a 3D printed zero turn lawn mower and trailer.
    I stopped at my LHS on Saturday and picked up a few things.
    20211002_233552.jpg20211002_161704.jpg
    A NCE throttle bus panel (for my DC hand held throttle) which I ordered last week. A spray can of Tamiya primer, a bottle of PC Green paint and some plastic square tubular stock to replenish my supply that I used up bracing some walls on a structure project.
    Cheers all and stay safe! Maurice
    Attempting to apply the K.I.S.S. principle to Model Railroading.

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  23. #32
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    This one arrived today. I recently discovered that Green Cargo (former Swedish State Railways' freight division) has been running transit freights on the main near my home since 2019. Duh! Goes to show how much I pay attention

    The prototype is a Siemens Traxx F140AC2 like my Hectorrail 241 or a DB/Railion class 185.2. The model is from Fleischmann and I think a doubleheader with the 241 would be lovely.

    Edit: Oops - wrong month! It's October now ...


    Last edited by SteamPower4ever; 5th Oct 2021 at 11:00 AM.
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    Good looking hauler (and crisp photo). Fleischmann does a nice job on the details and printing, as well as smooth running Loks.

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    @el Gato Gordo they certainly do. Decades ago I had several Fleischmann H0 models and although they did have N scale models back then (the Piccolo range), they're now N only after the merger with Roco.

    Actually, the Green Cargo type designation for the units equipped for cross-border traffic is 'Br'. This one is a class 'Re' which is the same locomotive, but only equipped for domestic service in Sweden.
    Sssh ... don't tell anyone
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    These 3 units will be hauling my CP Rail Canadian....
    Darrell

    cp - 1 (1).jpg

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    Won this by one penny in an auction. Surprised me as I didn't expect to win. My winning bid was one cent below my (admittedly stingy) max bid.
    "Do Not Hump!?!?! Does that mean what I think it means?!?"--Michelle Blanchard

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