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Thread: Bachmann And Such

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    Default Bachmann And Such

    Thanks for all the great postings for Poor... and such. It really helped. I went out and got an Atlas switcher and it is a really nice machine.

    HOWEVER, I really like the black/orange zebra stripes on the Bachmann, so I tore it apart and it seems that with DC on the motor wires, it sucks over 3 amps on a lab 9 volt power supply. Methinks that is a bit much, so my best SEWAG is that something inside the motor has departed the mechanism.

    The motor is about the diameter of a wooden pencil and about as long as the eraser and metal band on the top of the pencil. Two wires, blue and red. Are those motors available? I'd really like to keep what Bachmann did GOOD (the plastic parts) and replace the guts with a new motor and a decent DCC. I found a good DCC controller (about the size of a postage stamp cut into quadrants) but need the motor.

    Any sources?

    Jim

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    Quote Originally Posted by jweir43 View Post
    it seems that with DC on the motor wires, it sucks over 3 amps on a lab 9 volt power supply
    How is that even possible? I would expect that much current to make that small of a motor overheat and probably burn out an armature.

    You sure you're measuring the current correctly, got the ammeter in series with the motor, etc.? Don't mean to question your abilities.
    Paul Schmidt

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    Bachmann has MANY parts available on-line... have you looked at their website for N-scale parts?

    https://estore.bachmanntrains.com/in...b0u4cms24q5an0

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    IMG_0931.jpg
    Quote Originally Posted by Paul Schmidt View Post
    How is that even possible? I would expect that much current to make that small of a motor overheat and probably burn out an armature.

    You sure you're measuring the current correctly, got the ammeter in series with the motor, etc.? Don't mean to question your abilities.
    I'm pretty sure. I'm a professional electronics engineer and own a company that produces aircraft electronics. I'm pretty sure my old reliable power supply (see picture) will handle 3 amps at 9 volts. As a matter of fact, the voltage of the power supply can't HANDLE 3 amps and drops to about 2 volts. Lord only knows what the current would be if I took the Goose Moose (60 amp) that we use for landing gear motors and fired it into little b@$+@rd. Probably smoke and small parts all over the lab.

    Thanks,

    Jim

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    Quote Originally Posted by jweir43 View Post
    I'm a professional electronics engineer
    Yep, you know how to measure current!

    Ah, so only 2 volts at 3 amps, if I'm understanding, that's what's keeping the motor from melting. Couldn't you just it back to Bachmann for repair?
    Paul Schmidt

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    It has been back to Bachmann three times in two years. I'm of the opinion that they couldn't find their butts in a phone booth with both hands and a GPS.


    Jim

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    Quote Originally Posted by jweir43 View Post
    It has been back to Bachmann three times in two years. I'm of the opinion that they couldn't find their butts in a phone booth with both hands and a GPS.


    Jim
    Ha!
    Paul Schmidt

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    Quote Originally Posted by jweir43 View Post
    The motor is about the diameter of a wooden pencil and about as long as the eraser and metal band on the top of the pencil. Two wires, blue and red. Are those motors available?
    Sounds like a micro brushless motor, something like this? -> https://uge-one.com/micro-brushless-...-x-20mm-1.html
    or this -> https://opencircuit.nl/Product/13179...er-set-2-stuks

    Looking at the specs of the 2 motors it seems that the max voltage is around 4 Volts.

    Edit:
    Looks like you are talking about the S4 ,this one? -> https://estore.bachmanntrains.com/in...b0u4cms24q5an0

    Motor for the S4 -> https://estore.bachmanntrains.com/in...b0u4cms24q5an0

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    Quote Originally Posted by jweir43 View Post
    It has been back to Bachmann three times in two years.
    Maybe THEY should send it back to China, where the thing was made
    Cheers Tony

    "Knowing what to do is one thing ... being able to do it is another"
    "It is easy to criticize ... a lot harder when you have to justify it"

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    Quote Originally Posted by NDave View Post
    Bachmann has MANY parts available on-line... have you looked at their website for N-scale parts?

    https://estore.bachmanntrains.com/in...b0u4cms24q5an0
    Let me see if I understand this correctly. You want me to replace a POS Bachmann motor that has been replaced three times with a POS Bachmann motor to fix the problem. I'm not understanding the logic of replacing garbage with garbage.

    Thanks,

    Jim

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    Your right Jim - why waste more money on replacing a fault with another fault. Glad that you have seen the light so o speak

    This is NOT directed at anyone, rather a general observation ... considering how many complaints about bachmann, in general, there are on the internet (in forums) I am at a loss as to understand why people seem to ignore those complaints, which are generally the same or similar and have been on going for years, and continue buying the stuff. Sure, someone may get one of their engines that is reasonable but that seems to be the exception rather than the rule.

    The second thing I find incredulous is how someone can pay good money for an engine and then, because of failure, have to pay to send it back to bachmann and loose it for who knows how many months just to have it returned so it can fail again. Hasn't anyone heard of "once bitten twice shied"?

    Bachmann is well known for low/poor quality stuff and yet people still cross their fingers and keep supporting it. I don't know, it amazes me to be honest.
    Cheers Tony

    "Knowing what to do is one thing ... being able to do it is another"
    "It is easy to criticize ... a lot harder when you have to justify it"

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    Quote Originally Posted by wombat457 View Post
    This is NOT directed at anyone, rather a general observation ... considering how many complaints about bachmann, in general, there are on the internet (in forums) I am at a loss as to understand why people seem to ignore those complaints, which are generally the same or similar and have been on going for years, and continue buying the stuff. Sure, someone may get one of their engines that is reasonable but that seems to be the exception rather than the rule.
    Because some of their models are much better than others. I have their 2-10-2 and 2-6-0, and my only complaint about either is the low end stock Bachmann decoder. I put sound in the 2-10-2 anyway, and may eventually do the 2-6-0. They are both nice looking and reliable though. Their 2-8-0 is widely considered to be one of the top N scale steam models built. Most people love their 4-6-0 and they have a reputation for pulling a tremendous amount for their size. Other models... not so much. Bachmann's reputation for quality control sucks, but then I've had problems with an Atlas too. I agree that they make some junk too, but if you like N scale steam you are writing off some good options if you completely write off Bachmann. You just have to be careful about which model.

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    And, because the allure of models that Bachmann offers that no one else does -- because they're all too busy making Daylights and Big Boys and F7's, apparently -- is sometimes stronger than one's common sense. Particularly in the Steam dept. I got suckered in on the crappy Light Mountain more than once, and also own the only Prairie anyone has ever offered...if you can call it that.

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    I have had almost no problems with Bachmann stuff EXCEPT...........all my Bachmann steam locos seem to be susceptible to spinning the drive out of time. Sometimes all it takes is giving it a little push to get it going, sometimes it's trying to pull too heavy a load, and double-heading is a sure recipe for disaster. Sometimes even a small slip in timing is enough to lock the side rods up solid. My guess is A LOT of the problems people have is with the timing. It isn't that hard to fix and get the loco up and running again, but I haven't found a permanent solution.....sooner or later it will slip out again. But I can't really call it a quality control issue........There are simply A LOT of points where things can slip . and unlike diesels , all the wheels are not only connected by the gears, but also the side rods. Steam is just a whole nother animal ............ And none of the other manufactures of steam locos have a much better batting average than Bachmann with the exception of Kato, and they are only in the running if you like Union Pacific or Japanese railroads.

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    I have several Bachmann's , have yet to encounter a problem , maybe because all my B's are at the most 6 years old.
    As long as I can model in N-scale, I know I'm not old

    My Flickr Pages

    http://www.janbouli.com

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    post a picture of the motor? Lots of better motors out there than the stock one. What is the diameter, length and shaft diameter.

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    RULE # 1 throw bachmann's in trash. RULE # 2 buy KATO and never have a problem. hahaha

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    Have a look for possible replacements on this site...
    https://tramfabriek.nl
    Cheers,

    Russ

    CEO of Devil's Gate Mining Co.



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    Quote Originally Posted by sid View Post
    RULE # 1 throw bachmann's in trash. RULE # 2 buy KATO and never have a problem. hahaha
    While I'm not a fan of Bachmann, I think this opinion has been well observed.
    So before this thread goes off the rails, let's keep the opinions to ourselves and see if a replacement motor can be found.
    Thanks.
    The Little Rock Line blog


    “Never argue with an idiot. They will only bring you down to their level and beat you with experience." George Carlin

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    b-mann likely has a spare motor for the unit.

    please believe me when I say it is not a motor designed for longevity.
    I have tested the motor type and have no problem
    stating that you _can_ get 500 hours of runtime.
    I can also expand a little on that number by pointing out the brushes
    will not survive that long if the loco is improperly assembled or
    is working against a heavy load in the mechanism.

    The motor should not be able to conduct 3 amps. it has an internal short.
    b-mann coreless motors (the ones I tested... and this is from memory)
    use about .05 amps and about 3 volts to run a steam engine at about 20 smph.

    I am close to certain it is a coreless motor and has finger brushes.

    victor

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