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Thread: Speeder or Whatever this thing is

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    Default Speeder or Whatever this thing is

    has anyone ever built a working one of these little guys? I can imagine building a slightly oversized on off of one of those kato powered chassis if you could find one small enough. Seems like it would be fun

    speeder.jpg
    I hear the train a comin'; it's rollin' 'round the bend

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    just found this awesome build thread from way back, wish I could see the finished build.

    http://www.nscale.net/forums/content...90-Trackmobile
    I hear the train a comin'; it's rollin' 'round the bend

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    N scale is like a wide angle lens. O scale is like a zoom lens. Itís all good. " -Twindad

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    A trackmobile is a lot larger than a speeder. Unless you did a closed cab speeder, or an open one with the curtains closed, there isn’t a drive chassis small enough. I’d love to see someone try!
    Karl

    CEO of the Skally Line, an Eastern MN Shortline

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    Quote Originally Posted by Rob_H View Post
    has anyone ever built a working one of these little guys? I can imagine building a slightly oversized on off of one of those kato powered chassis if you could find one small enough. Seems like it would be fun

    speeder.jpg
    Quote Originally Posted by jpwisc View Post
    A trackmobile is a lot larger than a speeder. Unless you did a closed cab speeder, or an open one with the curtains closed, there isn’t a drive chassis small enough. I’d love to see someone try!
    As @jpwisc mentions, this is a very tiny model in N scale. I would never say impossible but very challenging at the least. The wheels are much smaller than regular freight wheels. There is very little room for gearing yet alone a motor. It would be a fun critter to see running but even if possible, I would suspect all kinds of tracking issues as it moves over the rails.

    I have imagined very small hi-rail vehicles that might have limited running space using moving magnets under the roadbed. This could lend itself to that but a lot of imagin-eering would need to go into it.

    GHQ model:
    http://www.ghqmodels.com/store/50007.html
    Steve - Jugtown Modeler..............Don't know enough about railroading yet, but scale modeling is my life..............Web-Folio

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    What if you got like three of them and stretched one out so it was a little longer? then maybe you could channel the speedster body down over one of those power units. It wouldn't be prototype but might be cool

    I've never seen one of those powered chassis in person, is there a tiny 4 wheeled one?
    I hear the train a comin'; it's rollin' 'round the bend

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    N scale is like a wide angle lens. O scale is like a zoom lens. Itís all good. " -Twindad

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    I hear the train a comin'; it's rollin' 'round the bend

    "
    N scale is like a wide angle lens. O scale is like a zoom lens. Itís all good. " -Twindad

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    Good luck.

    Although I suspect those chassis will be a bit bigger than the GHQ model. Perhaps you can create a non-prototype variant like you mentioned:
    Quote Originally Posted by Rob_H View Post
    What if you got like three of them and stretched one out so it was a little longer?
    Steve - Jugtown Modeler..............Don't know enough about railroading yet, but scale modeling is my life..............Web-Folio

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    I'm guessing an N scale speeder would be 1/2 inch long. Smallest motors I know of are cell phone vibrators. Maybe on a slope it would vibrate it's way downhill? You can find them down to 2 mm. One of these should fit but also need a voltage regulator: https://www.amazon.com/BULUSHI-2-5V-...09919592&psc=1

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    Arnold 2076 is actually much larger than a speeder but may satisfy some people who want a cute and tiny little MOW vehicle...




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    Quote Originally Posted by Rob_H View Post
    just found this awesome build thread from way back, wish I could see the finished build.

    http://www.nscale.net/forums/content...90-Trackmobile
    You can:
    http://www.nscale.net/forums/showthr...ckmobile/page2
    Did someone say whitcomb?

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    You can find all sorts of super small drivetrain parts at TGauge.com I would post a link but I don't know how There is a motor just 8mm long.
    FWIW T gauge is 3mm gauge that makes 18" gauge in N scale. I have a T chassis awaiting time to build a N narrow gauge project, one day !

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    I saw someone once build a string of rolling MOW equipment that was tied together using fishing line. Each one was free-rolling. At the front of the string, something like a lempke ballast tamper ( which is self propelled ) was used to pull the train along.
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    The smallest, high-quality flanged wheels I N I've ever seen belong to that powered (or dummy) VW bus model ("Drazine") that's essentially a hirail truck. That's one of the major problems here, as you can't just have small wheels, you have to have wheels with at least a .024 flange and regular treadwidth if not more, as if this thing falls in a switch frog you're done. Then you have to figure out how to gear it to an axle; robotshop.com and gizmoszone.com has had some truly tiny gears that will work. There's at least one tiny gearhead I use in my Climax models to power it. So maybe for a 'big' speeder like a crew car, you have everything you need, really.

    I've got the dummy bus just for the wheels and the gears, it's just a really low-pri project. I'm just after the hirail truck.

    https://www.modellbahnshop-lippe.com...n_produkt.html

    Now, beware, if you can't read German, there's a DUMMY one and a POWERED one, and if you can't get through the translation, you'll feel as dumb as I did when I thought I was getting a powered one. But the wheels, they are sweet, just the thing you're looking for.
    Here's the gearhead I've come to know and love for powering my tiny Climax models: https://solarbotics.com/product/gm15a/

    People get hung up on the motor. Don't. It's about the wheels, electrical pickup, and trying to figure out a way to equalize the 4-legged stool so that 4 wheels stay on the rails, otherwise you've invented a stalled speeder.
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    Quote Originally Posted by tomcook View Post
    You can find all sorts of super small drivetrain parts at TGauge.com I would post a link but I don't know how There is a motor just 8mm long.
    FWIW T gauge is 3mm gauge that makes 18" gauge in N scale. I have a T chassis awaiting time to build a N narrow gauge project, one day !
    I was going to say dipping into the T-Gauge parts bin was the most likely way to make such a thing happen. I'm still not sure it's possible, that said I've seen some amazing things.

    https://www.youtube.com/watch?v=ONGQHupxEmk
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    Quote Originally Posted by bicknell View Post
    I was going to say dipping into the T-Gauge parts bin was the most likely way to make such a thing happen. I'm still not sure it's possible, that said I've seen some amazing things.

    https://www.youtube.com/watch?v=ONGQHupxEmk
    Woah!! I have been "searching" for some time for the "next" wave of micro-motors and not finding much. That is impressive. Hoping it can translate into practical uses.
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    The introduction of so powerful an agent as steam to a carriage on wheels will make a great change in the situation of man. -- Thomas Jefferson, 1802


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    There are plenty of motors much smaller than the "pager motor" from cell phones most of us hear about.....

    The problem is that most require some sort of custom controller and/or solder-to-board integration and thus are only sold in batches of 10,000 to people building stuff. It's true of a lot of things, the camera in your cell phone is a lot smaller and higher quality than anything similar you can order from digikey.

    From a "is it possible" perspective I have no doubt a DCC, sound, open-cockpit speeder is within the realm of things modern manufacturing can build......provided you have $10M for R&D and plan to move 50 million units of it!
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    I think these days there are a fair amount of cheap and really tiny motors (mostly for drone and robotics market).

    The cheapest and smallest seem too fast for our applications (w/o lots of gearing) --
    https://www.ebay.com/itm/10Pcs-4mm-8...r/122230574699

    Here is one that is slightly larger but seems to have a more reasonable RPM (i.e., would require less insane gear work) --
    https://www.ebay.com/itm/1pcs-10mm-D...r/232064926799

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    I know 4mm x 8mm seems small, well, it is small...but those speeders are basically square and barely hang over the rails. So I'm going to estimate they are 10mm x 10mm.

    So in one direction you have exactly 1mm for a shell on each end, and in the other direction it takes up 40% of the available space!

    I figure to make an operation speeder would take a 2mm x 4mm motor driving a single wheel set. Probably using the other wheel set for a single wheel set pickup. There's basically room for a single worm to drive the one axel. A simple base to hold both axels and motor in place, and then a shell that snaps over the top of it all. DC only of course, DCC would require an even smaller motor.
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    Quote Originally Posted by bicknell View Post
    I know 4mm x 8mm seems small, well, it is small...but those speeders are basically square and barely hang over the rails. So I'm going to estimate they are 10mm x 10mm.

    So in one direction you have exactly 1mm for a shell on each end, and in the other direction it takes up 40% of the available space!

    I figure to make an operation speeder would take a 2mm x 4mm motor driving a single wheel set. Probably using the other wheel set for a single wheel set pickup. There's basically room for a single worm to drive the one axel. A simple base to hold both axels and motor in place, and then a shell that snaps over the top of it all. DC only of course, DCC would require an even smaller motor.
    Mount diagonally?

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    Go to http://www.sprog.us.com/shop.html#order
    Toward the bottom of the page he sells speeder motors. Im not sure what the size is.

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