Jump to content




Photo

Special Cox commutator?


  • Please log in to reply
12 replies to this topic

#1 Isaac S.

Isaac S.

    Mid-Pack Racer

  • Full Member
  • PipPipPip
  • 150 posts
  • Joined: 02-September 20
  • Gender:Male
  • Location:USA

Posted 17 October 2020 - 10:10 AM

I was reading an Auto World ad from a mid-66 magazine and it said "Above Cox versions of the Mabuchi motors all have chromed cases and special commutators that are more adaptable to rewinding." Is this true? I thought that the only difference was a small black sticker :) and a chrome can. 


Isaac Santonastaso




#2 don.siegel

don.siegel

    Posting Leader

  • Subscriber
  • PipPipPipPipPipPipPip
  • 4,903 posts
  • Joined: 17-February 06
  • Gender:Male
  • Location:Paris, France

Posted 17 October 2020 - 01:28 PM

I don't think that's true Isaac, but never really checked to tell the truth - and I mostly rewound other motors than the Cox. I've had a few apart in recent years, but never noticed anything different about the coms. 

 

Is the ad talking about Cox's can-drive versions of the Mabuchi motors, 16D and 36D? 

 

Don 



#3 Isaac S.

Isaac S.

    Mid-Pack Racer

  • Full Member
  • PipPipPip
  • 150 posts
  • Joined: 02-September 20
  • Gender:Male
  • Location:USA

Posted 17 October 2020 - 01:39 PM

It lists the TTX-50, 100, 150, 200 and 250. So both EB drive and can drive. But 16d's and 36d's


Isaac Santonastaso

#4 SpeedyNH

SpeedyNH

    Old Engineer

  • Subscriber
  • PipPipPipPipPip
  • 546 posts
  • Joined: 18-July 15
  • Gender:Male
  • Location:Cow Hampshire

Posted 17 October 2020 - 03:48 PM

i find it odd that cox would have had anything that different than the others. i sure don't remember any. but you could always ask the master John H if he's seen 'em. 


Steve Lang

#5 Dave Crevie

Dave Crevie

    Posting Leader

  • Full Member
  • PipPipPipPipPipPipPip
  • 2,361 posts
  • Joined: 16-February 09

Posted 17 October 2020 - 04:24 PM

What I saw, and I don't think it was exclusively on Cox motors, is that some can motor coms had tabs on each segment that you folded over the winding wire to hold it, and others just had lugs that you would have to wrap a turn or two of the wire around then solder over it. 


  • NSwanberg and Rotorranch like this

#6 Isaac S.

Isaac S.

    Mid-Pack Racer

  • Full Member
  • PipPipPip
  • 150 posts
  • Joined: 02-September 20
  • Gender:Male
  • Location:USA

Posted 17 October 2020 - 07:24 PM

Dave, That could be it. Best idea I have heard. Very plausible 


Isaac Santonastaso

#7 Horsepower

Horsepower

    **Numb Thumbs**

  • Full Member
  • PipPipPipPipPipPipPip
  • 4,251 posts
  • Joined: 16-February 06
  • Gender:Male
  • Location:Chicago

Posted 17 October 2020 - 07:58 PM

Maybe the top of the line had Kirkwood comms?


"You do not know these men. You may have looked at them, but you did not see them. They are the wind that blows newspapers down a gutter on a windy night -- and sweeps the gutter clean."

 

Gary Stelter


#8 don.siegel

don.siegel

    Posting Leader

  • Subscriber
  • PipPipPipPipPipPipPip
  • 4,903 posts
  • Joined: 17-February 06
  • Gender:Male
  • Location:Paris, France

Posted 18 October 2020 - 03:33 AM

As far as I know, the fold over tabs were only on the upgraded commutators, like the Tradeship. 

 

But I guess I should take a look at my motors to be sure! 

 

Don 



#9 Dave Crevie

Dave Crevie

    Posting Leader

  • Full Member
  • PipPipPipPipPipPipPip
  • 2,361 posts
  • Joined: 16-February 09

Posted 18 October 2020 - 09:24 AM

I just did (actually, re-did) an Igarashi that had the fold-over tabs. It had the original arm I which I re-wound as a kid. The arm failed because when I folded over the tab, I partially cut through the winding, and during the first loaded test, it burned the rest of the way through. I think it was the first double I tried to do. (age 15)


  • Tom Katsanis likes this

#10 Ramcatlarry

Ramcatlarry

    Posting Leader

  • Subscriber
  • PipPipPipPipPipPipPip
  • 2,733 posts
  • Joined: 08-March 06
  • Gender:Male
  • Location:St Charles, IL 60174

Posted 18 October 2020 - 10:37 AM

Are not modern (American made) commutators all NON-folded tabs?  New arms are either spot welded or silver soldered wraps, I would think.


Larry D. Kelley, MA
retired raceway owner... (for now)
race directing around Chicago-land

 

Diode/Omni repair specialist
USRA 2020 member # 133
IRRA, USSCA , MFTS, MidAmerica Hardbody racer

Host 2006 Formula 2000 & ISRA/USA Nats
Great Lakes Slot Car Club (1/32) member
60+ year pin Racing rail/slot cars in America


#11 Dave Crevie

Dave Crevie

    Posting Leader

  • Full Member
  • PipPipPipPipPipPipPip
  • 2,361 posts
  • Joined: 16-February 09

Posted 18 October 2020 - 12:52 PM

Looking at the arm from a Hawk 7, it diffinitely as the folded over tabs. But how does that relate to motors made 50 years ago?



#12 Ramcatlarry

Ramcatlarry

    Posting Leader

  • Subscriber
  • PipPipPipPipPipPipPip
  • 2,733 posts
  • Joined: 08-March 06
  • Gender:Male
  • Location:St Charles, IL 60174

Posted Yesterday, 01:31 AM

Dave, I agree that the Oriental made arms have not used the same comms that Mura/Koford/Proslot use on their American arms.


Larry D. Kelley, MA
retired raceway owner... (for now)
race directing around Chicago-land

 

Diode/Omni repair specialist
USRA 2020 member # 133
IRRA, USSCA , MFTS, MidAmerica Hardbody racer

Host 2006 Formula 2000 & ISRA/USA Nats
Great Lakes Slot Car Club (1/32) member
60+ year pin Racing rail/slot cars in America


#13 Dallas Racer

Dallas Racer

    Posting Leader

  • Full Member
  • PipPipPipPipPipPipPip
  • 2,469 posts
  • Joined: 03-November 07
  • Gender:Male
  • Location:Dallas, TX

Posted Yesterday, 12:01 PM

Dave, I agree that the Oriental made arms have not used the same comms that Mura/Koford/Proslot use on their American arms.

 

Larry, I said "Oriental" in a conversation years ago and was told that's considered offensive. I didn't know that. And I assume you don't either. I think the correct term to use now would  be Asian.

 

But maybe that only applies to Asian *people*, not Asian products. Heck, I don't know.

 

The Orient is a term for the East, traditionally comprising anything that belongs to the Eastern world, in relation to Europe. It is the antonym of Occident, the Western World. In English, it is largely a metonym for, and coterminous with, the continent of Asia, loosely classified into the Near East, Middle East and Far East: the geographical and ethno-cultural regions now known as West Asia, South Asia, East Asia, and Southeast Asia. Originally, the term Orient was used to designate the Near East, and later its meaning evolved and expanded, designating also the Middle East or the Far East.

The term oriental is often used to describe objects from the Orient. However, given its Eurocentric connotations and shifting, inaccurate definition through the ages, it is widely considered to be an offensive term when used to refer to people of East Asian,[1][2] and South East Asian descent.[3][4]


Phil Smith ® ©






Electric Dreams Online Shop