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In lugnet.trains, Peter Abrahamson wrote:
> Well,
> I have finally made an attempt at converting my Emerald Knight to run on the 9
> volt track. Using the Power Functions as show in the instructions and a non
> functioning train motor unit I was able to make the engine run. I gutted the
> motor (carefully) out of the motor unit and use the metal wheels and contacts to
> run the power functions motor. See the link for photos and descriptions.
>
> http://www.teamsinister.net/Team_Sinister/LEGO_Train.html
>
> Peter
Please, please, PLEASE excuse this neophyte for such a simple question...
I have note been able to even touch my LEGO train in over three years (it's been
in storage) and I just learned about the Emerald Knight. The last time I had
any dealings with LEGO trains the RC stuff was just being brought out.
So, with that said, let me ask my neophyte question.
Why can't a 9v engine unit be attached to the Emerald Knight engine when being
built like the traditional ones? Does it have to do with the drive system on
the pistons and wheels?
Cheers!
Larry
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Larry Simpson wrote:
> In lugnet.trains, Peter Abrahamson wrote:
>
> Why can't a 9v engine unit be attached to the Emerald Knight engine when being
> built like the traditional ones? Does it have to do with the drive system on
> the pistons and wheels?
Well, I haven't opened mine yet, so this isn't for sure, but a 9V motor
really doesn't fit with the wheel configuration on the engine without
severe changes. It could be put on the tender, although that has 8
wheels, so you'd have to change the wheel configuration there - contrast
for example with 7750, where the tender is built around the motor - or
make the tender perhaps longer for it to look sensible.
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In lugnet.trains, Peter Naulls wrote:
> Larry Simpson wrote:
> > In lugnet.trains, Peter Abrahamson wrote:
>
> >
> > Why can't a 9v engine unit be attached to the Emerald Knight engine when being
> > built like the traditional ones? Does it have to do with the drive system on
> > the pistons and wheels?
>
>
> Well, I haven't opened mine yet, so this isn't for sure, but a 9V motor
> really doesn't fit with the wheel configuration on the engine without
> severe changes. It could be put on the tender, although that has 8
> wheels, so you'd have to change the wheel configuration there - contrast
> for example with 7750, where the tender is built around the motor - or
> make the tender perhaps longer for it to look sensible.
Basically, a 9V train motor doesn't fit this engine very well, in terms of both
the motor's size and look.
I've thought about using a 9V motor, too, and personally I'd use it as one of
the trucks on a passenger car, as close to the engine as possible so that it's
still pulling the majority of the train's weight -- assuming you add more cars.
The 9V motor can't really replace anything on the engine because it won't fit
where the pilot and trailing wheels are, and it obviously can't be used in place
of the drive wheels because then the pistons won't work. Using the motor as the
base of the tender is a possibility, but you'll have to modify the tender.
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Jordan Bradford wrote:
> I've thought about using a 9V motor, too, and personally I'd use it as one of
> the trucks on a passenger car, as close to the engine as possible so that it's
> still pulling the majority of the train's weight -- assuming you add more cars.
> The 9V motor can't really replace anything on the engine because it won't fit
> where the pilot and trailing wheels are, and it obviously can't be used in place
> of the drive wheels because then the pistons won't work. Using the motor as the
> base of the tender is a possibility, but you'll have to modify the tender.
On another note, will the new PF stuff work with my "old" RC train
controller? As noted previously, the one I ordered is not expected
until April - or I could shell out on eBay/Bricklink. Also, has anyone
tried to use an "IR blaster" or similar with any of the RC stuff?
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In lugnet.trains, Peter Naulls wrote:
> On another note, will the new PF stuff work with my "old" RC train
> controller?
Nope. They use completely different IR protocols, unfortunately.
http://news.lugnet.com/technic/?n=16192
> As noted previously, the one I ordered is not expected
> until April - or I could shell out on eBay/Bricklink.
I'm waiting for my remote, too. :(
If you have an RCX or NXT, you can program them to send PF-compatible signals to
the PF receiver. The RCX needs different firmware to do this, and the NXT needs
an IRLink sensor such as the one from HiTechnic. See the rest of that thread I
linked above.
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Peter Naulls wrote:
> On another note, will the new PF stuff work with my "old" RC train
> controller? As noted previously, the one I ordered is not expected
> until April - or I could shell out on eBay/Bricklink. Also, has anyone
> tried to use an "IR blaster" or similar with any of the RC stuff?
My order with 8879 is now "in progress" and 8879 is back in stock.
However, some of the other PF stuff is back order until May:
https://shop.lego.com/ByTheme/Product.aspx?p=8870&cn=587
http://shop.lego.com/ByTheme/Product.aspx?p=8884&cn=87&d=328
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In lugnet.trains, Larry Simpson wrote:
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Please, please, PLEASE excuse this neophyte for such a simple question...
|
Never, never, NEVER apologize for asking a question in this forum, Larry!
We are all here to share information and promote the LEGO train hobby. There’s
no room for elitism here!
<snip>
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Why can’t a 9v engine unit be attached to the Emerald Knight engine when being
built like the traditional ones? Does it have to do with the drive system on
the pistons and wheels?
|
The EN is a push train-- it doesn’t come with a motor. One can motorize it
with the PF motor, or one can simply push it with a 9 volt motor in the tender
or elsewhere. So, to answer your question-- it can.
JOHN
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In lugnet.trains, Larry Simpson wrote:
> Why can't a 9v engine unit be attached to the Emerald Knight engine when being
> built like the traditional ones? Does it have to do with the drive system on
> the pistons and wheels?
We had some luck adding a 9v motor to the tender and pushing the locomotive. We
did find that it works best if you remove the internal gearing on the locmotive,
though, to help cut down on the friction, thereby making it easier to push.
-Elroy
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In lugnet.trains, Elroy Davis wrote:
> In lugnet.trains, Larry Simpson wrote:
> > Why can't a 9v engine unit be attached to the Emerald Knight engine when being
> > built like the traditional ones? Does it have to do with the drive system on
> > the pistons and wheels?
>
> We had some luck adding a 9v motor to the tender and pushing the locomotive. We
> did find that it works best if you remove the internal gearing on the locmotive,
> though, to help cut down on the friction, thereby making it easier to push.
>
> -Elroy
Adding it to a passenger car doesn't work very well. The engine is heavy and the
internal gearing is being used in reverse, which makes it very hard to push from
further back. The 9V motor running at full power can't get enough traction to
move the train very much. But when I tested it, I hadn't removed the internal
gearing, so the motor on the passenger car might still work if the gearing is
gone.
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