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Thread: 3D Printing?

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    Question 3D Printing?

    I am a student in Long Island with a looooooong summer vacation and a version of autodesk inventor. Does anybody have anything that they would like to see 3D printed? (I can't think of much)
    David Cutting
    Owner, Cutting Edge Scale Models
    www.cescalemodels.com

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    PW&NJ Railroad

    The Resourceful Route!



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    Question What is that beast?

    What is that beast? It looks like a very interesting locomotive to build.
    Do you have any drawings? If not, then I could probably piece something together from multiple images with a technique from the May 1996 RMC.
    Finally, do you know which locomotive would be alright to use under the shell?
    David Cutting
    Owner, Cutting Edge Scale Models
    www.cescalemodels.com

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    Keep the suggestions coming!
    David Cutting
    Owner, Cutting Edge Scale Models
    www.cescalemodels.com

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    Vince P Guest

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    how about a late 1960's kenworth or peterbilt trucks in both conventional (hood) & cabover (no hood) or some decent 1960's cars like station wagons, 4 doors, 2 doors, convertibles, vans and pick up trucks

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    How bout a correct NS C40-9w cab for the Kato C44-9w

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    That's a wonderful idea! Would it be possible to use the measurements off of an atlas Dash 8-40BW, or is this a different beast?
    David Cutting
    Owner, Cutting Edge Scale Models
    www.cescalemodels.com

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    You'd have to design it in silver as it need to be conductive

    The shaft going into the body needs to be at least a quarter inch long. It would be great if it were threaded for a 72 or 80 nut to hold it to the body. Don't include the springs Sprayed metal springs are way to brittle to flex. But you do need attachment points for them. Yes the vertical pivot is important. The pole can be a wire inserted into a hole in the sprung unit. You couldmake a shoe too. But they are easy to make.

    Check out the rest of the page for more info.
    http://trolleyville.com/tv/school/op...trolley_poles/

    You can get these in HO, S or O but no longer in N.
    Oh, they get mounted to…

    The large one is HO the smaller is N. Both sport an incorrect plastic Trolley pole.
    Use what you know about the world to model…
    Learn from modeling what you don't know about the real world.



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    ChicagoNW: Sorry to disappoint, but that would be a very tricky to make item, especially because of minimum wall thickness, etc. I you look at the specs for a material and think it is doable, then go ahead. You could also make it in plastic and have a hole in the top where you would insert a wire. That wire could then be connected to the body via a contact, etc.

    It would be doable but I would need some more info on what you can tolerate.
    David Cutting
    Owner, Cutting Edge Scale Models
    www.cescalemodels.com

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    Show me what you can do.

    Design within the spec of the material. It's a simple yoke joint, with attachment points for coil springs. The mounting plate is already molded into the car roof. So you do not need to design it.

    You could even try to design it as if it were the nut. With a screw coming out of the body.
    A wire cannot be used.

    Current Device…


    Power transferred between roof and chassis…


    If I had CAD software and could use it why would I ask?
    Use what you know about the world to model…
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    Quote Originally Posted by DCUTTTING View Post
    That's a wonderful idea! Would it be possible to use the measurements off of an atlas Dash 8-40BW, or is this a different beast?
    It would need to be done off a Kato C44-9W.. the cabs are different between Kato and Atlas.

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    Okay, since I do not own a Kato C44-9W, then I would need you to send me the measurements at cuttingsix@gmail.com.
    David Cutting
    Owner, Cutting Edge Scale Models
    www.cescalemodels.com

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    ChicagoNW: are you looking for detail or functionality? If it is functionality, then you could probably get away with folding a strip of brass in half and putting a spring in the middle to keep tension. If you are looking for detal, then the only way I see is making it in FUD. Does the trolley use a wheel, or does it just slide in N scale?
    David Cutting
    Owner, Cutting Edge Scale Models
    www.cescalemodels.com

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    Even on the prototype most companies abandoned the wheel. It derailed too easily and were expensive to maintain. The wheel has only been done successfully in O or larger. But even then, the overhead wires need ti be perfect.

    Like I said before the part that is needed is not the shoe. It is the elbow mounted to the pivot with places to attach the springs and the pole. Currently I use silver jewelry bits plus a phosphor-bronze torsion spring and a brass nut and bolt. The current shoe ia half a brass square tube soldered to the pole. It is in no way realistic but it works.

    Photo-etched or stamped and folded sheet metal may be one way to go, but thats more for a production run. Since there are only a thousand N Scalers using overhead power on the planet making back the die cost can be difficult. The previos producer, Miniatures by Eric, gave up on his lost wax casting versions only after a couple of years.

    As to detail this is beyond FUD as they would be too small and the brittle material could not stand a single use. Just applying a weak spring will break it. Besides the fact it does not conduct current.
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    Quote Originally Posted by DCUTTTING View Post
    I am a student in Long Island with a looooooong summer vacation and a version of autodesk inventor. Does anybody have anything that they would like to see 3D printed? (I can't think of much)
    Hello David,

    Maybe check out this thread
    http://www.nscale.net/forums/showthr...789#post335789

    Might be some ideas there.

    Cheers,
    Craig

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    Quote Originally Posted by DCUTTTING View Post
    Okay, since I do not own a Kato C44-9W, then I would need you to send me the measurements at cuttingsix@gmail.com.
    I can .. or Kato is having a sale on there undecorated dash 9s.. there selling a complete shell for $5 on there website.

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    ChicagoNW: I will try to figure out something
    vikingservices: Great idea!
    632bbc: I would rather that you gave me the measurements.
    David Cutting
    Owner, Cutting Edge Scale Models
    www.cescalemodels.com

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    Hi all,
    Thanks for the input. I am working on my newest project right now... independent power trucks like kato HO P42... but in N scale. Best part is that they can fit into almost anything... Including switchers! More Later.
    David Cutting
    Owner, Cutting Edge Scale Models
    www.cescalemodels.com

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    Here is what Pro-Hobby in Japan makes…

    Currently they only power one axle. Some guy sells a version that he puts together from brass. The larger motor lays across the two axles and is geared to power both. He sells them near the cost of a production loco. GreenMax and NWSL used to sell something similar but with a chassis and a another truck for power pick-up.

    Pro-Hobby calls it a Caramel Class Chassis. Another company makes one with a smaller wheelbase. If you found a motor that fits within the truck and can get it working you will have found the grail that traction modelers have been searching for. A way to make a realistic open car.

    Those power trucks have been available in O scale for decades and in HO for at least five years. You might want to borrow some to get an idea how they are put together. North West Short Lines and other build and sell them.

    Good Luck!
    Use what you know about the world to model…
    Learn from modeling what you don't know about the real world.



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    So far, the plan is to mount 2 motors vertically and have one motor per axle. The motors are small enough that the entire mechanism should be able to fit inside a switcher! I am still trying to figure out a few minor details, but it should be ready very soon
    I will be starting a new thread on this soon, so be on the lookout.
    David Cutting
    Owner, Cutting Edge Scale Models
    www.cescalemodels.com

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