Hi, Amanda
I sent the two motors today. I PMed you with the tracking number.
I forgot to put a note inside but I wanted to mention that I tested both motors and the one that runs better is the one with the green sticker on it.
Smoother, lower current draw, like 200 mA at 6V. no load.
Hope that works for you,
Regards, Ed
gmpullman Hi, Amanda I sent the two motors today. Snipped 8-< Regards, Ed
I sent the two motors today.
Snipped 8-<
Glad to be of some help for you, Amanda.
I hope your Alco is running well again, soon!
Monon Railroader I just don't remember where that small container is stashed.
Yep! Been there, done that
Are these the shafts with the little rubber 'giubo' universal on the ends with the three little pins, like the ones in their BP-20s?
OvermodAre these the shafts with the little rubber 'giubo' universal on the ends
If it is set up anything like my DES-3 it is simply a length of 2mm steel shafting to make up the distance between motor and gear tower.
NYC_DES-3d by Edmund, on Flickr
NYC_DES-3c by Edmund, on Flickr
Silicone tubing certainly works better than the old gum-rubber sleeves that turned to crumbles after a short time.
Good Luck, Ed
I presume there are two sleeves per end, and that the intermediate shaft 'floats' between the two. Also that the swing is little enough that the sleeves don't see too much compression.
What's the minimum radius on that DES-3? Doesn't look to me to be the poster child for the kinds of radii the prototype would be expected to negotiate...
OvermodWhat's the minimum radius on that DES-3?
I went with a re-motor and replaced the drive shafts with ones salvaged from a Proto 2000 FA-1:
NYC_DES-3b by Edmund, on Flickr
The only thing that limits the radius is the cut-out in the frame where the gear tower passes through. My minimums, even in yard trackage is at least 28" although I do have some #5 turnouts.
The short wheelbase of the DES-3 negotiates these with ease.
NYC_DES-3_531 by Edmund, on Flickr
Cheers, Ed
Overmod Are these the shafts with the little rubber 'giubo' universal on the ends with the three little pins, like the ones in their BP-20s?
Hey Overmod!
Yep those are the ones. Kinda tricky to get lined up but it's doable.
Amanda
Yay! I got the motor in my RS-2 #2 this afternoon. AND... poop. The bottom (plastic) gear on the rear truck seems to be short 3 or 4 teeth. I "might" have something around that'll work. I have a lot of plastic gears left over from odds and ends of robotic projects. Some calipereing and micrometering will be called for.
Sadly tomorrow marks the end of my precious days off. Back to the salt mines! Bleah!!!!
Amanda ;-)
If you can't find a gear that works, NWSL makes gears specifically for KMT drives like the one in your ALCO. I've used some, and they're better than the originals!
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Darth Santa Fe If you can't find a gear that works, NWSL makes gears specifically for KMT drives like the one in your ALCO. I've used some, and they're better than the originals!
Thanks! I thought that might be the case. Hafta have a look around.