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Mamod MM2 Running N Scale train via Homemade genny!
Ok first off sorry for the low reso video...I forgot to select the better size ...This was a end of the night job.
I made a genny from a carbon brushed dc toy motor and encased it in brass to spiff it up.
Then mounted a large Tamiya pulley to the MM2 just by shimming the flywheel out and screwing the pulley on through the flywheel hole...worked perfect and easy to remove.
I first drove 9 white LEDs in a cluster from a old flashlight....Then I thought.......hmmmmmmm What about a small train?
This is on meths direct wired to genny...no speed control.
Jim
27ace27
that's delightfully Mad!
IndianaRog
Jim, that is just plain cool!!! Hard to believe it would drive a train, but proof positive!!!
That should look nice around a Christmas tree if you don't set the tree on fire!!
Rog
johnreid
Cool, I think Peter SantaMaria powered an HO with a Stepper, but your MM2 really did the job right.
Les
A new meaning for a steam train, very cleverly done.
James
That's great to see!
Sandman
What a great idea.
Wonderful stuff.
Dampfmaschine
Very inspiring
Ross
Thats got some power!
Ross
Dr. Rog
It works!
Good idea. What is the pully ratio and how many poles is the motor?
metalhead100
Dr.. the ratio is pretty close to 4 1/2 to 1
The motor is a 3 pole as far as i know.....I only popped it open enough to see the brushes and verify the carbon ends.
I just culled through my stash and found a good carbon brushed one so it will last longer and gave it a try.
It makes the Old girl work hard....and takes full tilt to run the train....
Thanks for the comments fellas! Its all in fun......sooner or later just seeing a flywheel turn gets old and I (we) start getting creative.
Jim
igy569
Great stuff.
Dr. Rog
Wonderful - 12 to 14 poles per revolution, nice small genny.
I have pretty much all I need to copy you. I think my smallest N-guage loco should need less current so there is some room for drops in efficiency.
Thnaks for the inspiration, imitation is the best form of flattery.
metalhead100
DR...
Next time i hook it up i will measure the MAH draw....
Its a new 5 pole skewed arm Bachmann...very nice runner ...
Jim
Dr. Rog
metalhead100 wrote:
DR...
Next time i hook it up i will measure the MAH draw....
Its a new 5 pole skewed arm Bachmann...very nice runner ...
Jim
Those new 5-poles are very efficient, that could certainly contribute to success.
calypso
Great idea Jim.
Lateral thinking at its best!
Roly Williams
metalhead100 wrote:
DR...
Next time i hook it up i will measure the MAH draw....
Its a new 5 pole skewed arm Bachmann...very nice runner ...
Jim
I hope not. MAH stands for Mega-Amp-Hour. I think you mean mA (milli-Amp).
metalhead100
Yes Roly ....thanks.
I used caps for emphasis ...guess that was bad on my part...
mAh...better?
Jim
Roly Williams
metalhead100 wrote:
Yes Roly ....thanks.
I used caps for emphasis ...guess that was bad on my part...
mAh...better?
Jim
No, just mA.
Current is measured in Amps (or milliamps). mAh stands for milliamp hour, which is, for example, the capacity of a battery. (A 500mAh battery is capable of supplying 500mA for 1 hour or 50mA for 10 hours etc.)
Dr. Rog
The amp-hours would be pretty interesting as well.
We could compare burning meths the national grid.
erikl
that's so cool!
Would be interesting to see how fast it would move with a bigger engine like a SE3
Dr. Rog
erikl wrote:
that's so cool!
Would be interesting to see how fast it would move with a bigger engine like a SE3
With a bigger drive pully to match.
metalhead100
Roly,
Right again......
I am so used to dealing in mAh....as i test my rc batteries for my Airplanes ....guess I am stuck on Amp hours.....HAHHAA
I have some 2700 mAh packs for one of my planes...And I use as load tester cycle-er that reads out mAh....after draining the pack under load.
In my head i was thinking milliamps but was expressing it as mAh....instead of mA....
Jim
Roly Williams
All these TLAs do my head in as well.
Dr. Rog
Roly Williams wrote:
All these TLAs do my head in as well.
We have a list at work of of acronymnmnmns that we have used. Its up in the thousands long. Some combinations have half a dozen meanings.
magpie38
very very nice, makes me wonder what else other people have used their steam engines for
xlchainsaw
excellent display. thanks for sharing.
AzRob
A bit larger power source, but pretty cool none-the-less.
Not mine though.
