TT Nut GE U30B

Re: TT Nut GE U30B

Postby Rob M » Wed Feb 27, 2013 11:16 am

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Re: TT Nut GE U30B

Postby ConducTTor » Wed Feb 27, 2013 12:26 pm

I don't know how I missed that....I've been on that site so many times :wall:
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Re: TT Nut GE U30B

Postby ConducTTor » Fri Mar 01, 2013 8:56 pm

While hunting down noise by the drive mech I found that the motor by itself (I never just ran it on its own before) is producing a bunch. My gut feeling is that the Atlas N scale motors (what I've been using) sold on Ebay are B stock. So, I've ordered a Mashima motor to try out. If I like, there will be some redesign.
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Re: TT Nut GE U30B

Postby CSD » Fri Mar 01, 2013 10:13 pm

I would not have a problem with the Mashima after all it is the standard for many good models. Even if the price was higher, better parts = better product.
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Re: TT Nut GE U30B

Postby areibel » Fri Mar 01, 2013 11:51 pm

Are you getting the Atlas motors from a dealer or from Atlas? They're great to deal with direct with parts, dunno what the cost difference would be though.
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Re: TT Nut GE U30B

Postby ConducTTor » Sat Mar 02, 2013 12:07 am

Off Ebay. I asked Trainmasters (the only RR hobby shop in the ATL area) and they said they can't sell me a bunch of motors - Atlas rules or something to that effect. I won't bother talking to Atlas. My conversations with all manufacturers of models regarding parts for this project have ended in something that roughly translates to "eff you".
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Re: TT Nut GE U30B

Postby Rob M » Sat Mar 02, 2013 12:07 am

Are you getting the drive train noise with a bare chassis? I was also but found that adding weight, the body and even the side frames all quiet it down some.

Also, are you mounting the motor solidly to the chassis? That will transmit the vibration through the whole mechanism. Using double sided instead tape helps a lot.
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Re: TT Nut GE U30B

Postby ConducTTor » Sat Mar 02, 2013 12:12 am

Rob M wrote:Are you getting the drive train noise with a bare chassis?


yes

Rob M wrote:I was also but found that adding weight, the body and even the side frames all quiet it down some.


same here

Rob M wrote:Also, are you mounting the motor solidly to the chassis?


yup

Rob M wrote:That will transmit the vibration through the whole mechanism. Using double sided instead tape helps a lot.


Need to think about that and possibly augment the mounting. I just want something more durable than double sided tape.
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Re: TT Nut GE U30B

Postby Rob M » Sat Mar 02, 2013 12:28 am

Maybe you could use single sided foam tape and some type of clamping system around the motor.

You may try adding some double sided tape to where you mount your brass bars to help deaden any vibrations.
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Re: TT Nut GE U30B

Postby Rob M » Sat Mar 02, 2013 1:15 am

Just remebered something, on one of mine I put a drop of oil on each end of the motor where the shaft comes out and that seemed to quiet it down a little. It may be that they aren't oiled from the factory, expecting them to be oiled when they are installed.
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