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 Posted - January 06 2015 : 01:05:33 AM
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https://www.youtube.com/watch?v=JNS56Qe-qpw
Nuff said.
Darth Santa Fe, doing weird and challenging projects for the fun of it!
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 Posted - January 06 2015 : 06:51:43 AM
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Always enjoy seeing your projects Darth...you create some amazing machines. That switcher is a jewel 
http://tycodepot.com/
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Posted - January 06 2015 : 09:36:10 AM
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 That's actually a very good chassis, Darth. Very nice.
-Steve
"A lot of modellers out there who go to these train shows see broken HO stuff and go, 'This is useless' when, in reality, they can still be used for modeling whether it's as a prop on your layout or a cool project to make something old new again."
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Posted - January 06 2015 : 09:54:10 AM
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Chain drive. Cool. Is that from Grandt line?
O.k. I watched the video.
Unspoken expectations are premeditated failures.
Edited by - NC shortlines on January 06 2015 09:55:52 AM
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Posted - January 06 2015 : 10:22:40 AM
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The bevel gears are amazing in themselves. Normally, a bevel gear's shaft comes into the other gear's shaft on the same axis. The drive shaft on this truck sits above the axles requiring an odd kind of helical teeth on the bevel gears, just like the ones on the old Climax locomotives. Getting that helix right takes some real engineering. I expect that getting the gears meshing just right took some doing, too.
That's some machine you've got going there!
Carpe Manana!
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Posted - January 06 2015 : 12:29:05 PM
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| Very impressive! I've never seen a chain drive in a model train before.
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Posted - January 06 2015 : 3:07:50 PM
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Very nice! Your projects get me inspired to pick up some sheet brass and get bending!
Tim
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 Posted - January 06 2015 : 3:45:31 PM
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| cool can't even hear the motor on
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Posted - January 06 2015 : 3:50:34 PM
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quote:cool can't even hear the motor on
Originally posted by microbusss - January 06 2015 : 3:45:31 PM
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Yeah, just the wheels rolling! Very sweet-running mechanism, and let me also say that's a nice looking layout as well.
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Posted - January 06 2015 : 7:16:09 PM
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That is one of the most needlessly convoluted piece of miniature engineering I think I've ever seen in the hobby.
It's beautiful. And as shaggy said, those gears look like they would've given you quite a headache. Well built!
Now, I have to wonder, how many different kinds of powering have we seen in HO locomotives? There's traditional gear drive, Athearn hi-fi lo-fi rubber-band drive, power through a rotating rubber tube (very early Varney, or was it Walthers... somebody in the 40s  ), those fluid clutches that got talked about recently, and now an actual chain drive. What else?
--CRC
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Posted - January 06 2015 : 7:21:24 PM
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quote:That is one of the most needlessly convoluted piece of miniature engineering I think I've ever seen in the hobby.
Originally posted by PRR 4800Â -Â January 06 2015Â :Â 7:16:09 PM
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PRR48: You must not have worked on many Rivarossis.
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Posted - January 06 2015 : 8:55:31 PM
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Thanks!
The drive is certainly complex, but there are even more odd ones out there if you look around! One example would be the Lindberg switcher (SW1000?). That one had a large motor in the center with a small gear on the end, and that drove a very large gear in the cab which was on a long shaft going from the cab to the front end, and then a spring belt went around a pulley on the shaft down to the axles in the front truck. Creative, but I haven't really heard much about them running well!
scsshaggy, fortunately, Grandt Line includes cross boxes with some of their bevel gears (you can see one on top of the rear axle). They're basically perpendicular Delrin tubes fused together.
The video doesn't pick it up well, but the motor is audible in person along with a slight hum from the flywheel. Still quiet though!
Chain drives are noisy at high speed, but for slower applications like this, they're very quiet and much more durable than belts. Tiger Valley uses a Grandt Line chain drive to directly link the motor to the truck below. It whines, but it sure does run smooth!
Darth Santa Fe, doing weird and challenging projects for the fun of it!
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Posted - January 07 2015 : 03:11:07 AM
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Very nice project Darth!
Myself I am working on a Varney switcher where I have replaced the plastic drive with a Hobbyton chassis
with dual flywheel. It runs very slow now.
I also re-motor a old Bowser Challenger with a Faulhaber motor I am waiting to arrive. I allready made the
motor support! - Erich
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Posted - January 07 2015 : 07:42:24 AM
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Nicely done! Very crafty work there.  Love it.
Jerry in VA
" When life throws you bananas...it's easy to slip up"
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Posted - January 07 2015 : 08:37:13 AM
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I still say that the guys on this forum are very talented. And, more importantly; open minded.
Darth; she's a beauty. It looks like a lot of man hours so far. I am impressed.
Randy
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Posted - January 10 2015 : 02:39:12 AM
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I may have used this before; if so it bears a repeat appearance.
Amazing design, Darth. Your fabrication puts my tinkering to shame. So when do you hang out a shingle and open your own shop? And what's the solid wire for that runs from the truck frame to the sprocket bracket? Is it reinforcement, or just for electrical ground? (I can't see how the bracket is mounted.)
quote: quote:That is one of the most needlessly convoluted piece of miniature engineering I think I've ever seen in the hobby.
Originally posted by PRR 4800 - January 06 2015 : 7:16:09 PM
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PRR48: You must not have worked on many Rivarossis.
Originally posted by Autobus Prime - January 06 2015 : 7:21:24 PM
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AB, you put dangerous ideas in the Darth's head with that Tiger Valley video.
The Tyco Depot
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Posted - January 10 2015 : 11:44:01 AM
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The brass wire is just reinforcement. The frame for the sprocket on top is sort of an open Q shape, and the rear was too flexible without it.
Erich, the Bowser Challenger is already a great runner with the DC-71 (or Super Motor, if you've got an old one), so I can only imagine how great it'll be with a Faulhaber motor!
rbturner, that's one of the reasons I joined this forum! I still go to the MRR forum regularly, but they tend to be more critical of trains that are "junk". You should've seen some of the criticism I got for making a positive review of a Bachmann FT-A!
Darth Santa Fe, doing weird and challenging projects for the fun of it!
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Posted - January 10 2015 : 3:41:32 PM
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quote:I may have used this before; if so it bears a repeat appearance.
Originally posted by Autobus Prime - January 06 2015 : 7:21:24 PM
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Oh, that one.
Originally posted by NickelPlate759Â -Â January 10 2015Â :Â 02:39:12 AM
[/quote]
-Steve
"A lot of modellers out there who go to these train shows see broken HO stuff and go, 'This is useless' when, in reality, they can still be used for modeling whether it's as a prop on your layout or a cool project to make something old new again."
Edited by - kovacste000 on January 10 2015 3:42:09 PM
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 Posted - January 10 2015 : 5:10:24 PM
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Darth, you should post photos of that MDT switcher repower you did some years ago. It did Rube Goldberg proud.
The Tyco Depot
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Posted - January 10 2015 : 7:38:20 PM
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Sorry, I dismantled that one not long after it was finished. I'm actually doing something more insane with it now, but it's not quite ready.
Darth Santa Fe, doing weird and challenging projects for the fun of it!
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Posted - January 10 2015 : 10:50:55 PM
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quote:Thanks!
The drive is certainly complex, but there are even more odd ones out there if you look around! One example would be the Lindberg switcher (SW1000?). That one had a large motor in the center with a small gear on the end, and that drove a very large gear in the cab which was on a long shaft going from the cab to the front end, and then a spring belt went around a pulley on the shaft down to the axles in the front truck. Creative, but I haven't really heard much about them running well!
Originally posted by Darth Santa Fe - January 06 2015 : 8:55:31 PM
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At the WGH show in Oaks, PA last time it was there 2 years ago, there was a fellow with 3 full flats of nothing but these Lindberg switchers. I regret not taking a closer look, but I had already run out of money when I saw them Anyways, a diagram of what you've described:
quote: quote:That is one of the most needlessly convoluted piece of miniature engineering I think I've ever seen in the hobby.
Originally posted by PRR 4800 - January 06 2015 : 7:16:09 PM
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PRR48: You must not have worked on many Rivarossis.
Originally posted by Autobus Prime - January 06 2015 : 7:21:24 PM
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I said ONE OF.
--CRC
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Posted - January 13 2015 : 12:22:30 AM
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That's the one! I considered getting one of those Lindberg switchers a while back, but decided on this project switcher instead. Needless to say, I think I made the right choice.
Darth Santa Fe, doing weird and challenging projects for the fun of it!
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