339 replies to this topic

[havlicek]

Thanks, John.

I just posted in another thread but I also have some old Mura arms laying around that I'm thinking to salvage parts from and I was going to dissect them. But I'd hate to waste them if it's little more then a crap shoot.

 

Well, the way I always looked at it, if they weren't wound by someone that would make them desirable, why not try to see what's involved?  Otherwise, they're just "sinkers" or paperweights.

 

 

What is the OD of these spacers?

 

I get an OD of .095/.096 or 2.45MM Mike.  They can be had in different lengths besides 5mm.

 

Sorry if this has been asked/answered before but couldn't find it.

Regarding triple winds... what is the formula or corresponding wire size? I know the double wind is three sizes bigger as in a double #27 = single #24.

Got a spool of Mura silver triple wire that I'm going to use and wanted to make sure beforehand. Also got a RAM seven-pole arm I'm gonna have a stab at, too.

 

I forget Paul.  There was a spurt of multiple winds I did some months back, and the info is probably buried in there???  I'd usually be worried about using old magnet wire, but if it's for fun...why not!?  As for a wind..."as much as you can smush on there"!

[brucefl]

John what do you think about this product?

Wanna try it?

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[brucefl]

Test pilot this f35s needs testing.

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[havlicek]

Interesting stuff Bruce.  I don't know that 1100 degree magnet wire is necessary, even for the hottest open winds, but that's a heckuva "insurance policy", because any com and powder coat would fail long before that.  Heck, aluminum melts at a lower temp!  I wonder how thick the insulation coating is.  Seems like the insulation would be really only a thing for the big wire stuff...#25 etc., and that wire is already really thick.

[havlicek]

Looking briefly at the tech specs Bruce, the wire is guaranteed not to crack on a form 7X the diameter of the wire.  This could make it inappropriate for slot car armatures, since the wire needs to make sharp, basically 90 degree turns over the corners of the stack.  This is especially so on the first layer, although those corners "soften" a bit on succeeding layers.  When you consider even #27 wire, a corner or form of some sort that is 7x the diameter of the wire would be relatively huge.  Of course, if the wire cracks when passing over the corners, that would be a short...not with the stack, but with the next layers or the wire on the same layer and either side.  I don't know if the stuff can do what modern enameled wire does on an armature stack.

[brucefl]

Well I sent an email with the use we'll see what they say.if they send samples I'll send you some even if you just want a wall hanger.

[brucefl]

John I sent you a pm about a couple products you might be interested in,one of the items is a special order being made for me and if you want they'll make one for you too,the other is a product I want to test it's also interesting but may not work.

Just because the first item may only be available to a couple of people,I won't speak in specifics,if the company decides to make it,available I'll let everybody know,I'm pushing them because these are items everyone who winds would want,and it at a great price.

[SlotStox#53]

Hmmm, cryptic.. I possibly see a new crank and arm clamps in the slot car future?

[brucefl]

Other than the legate winding device,what else is out there to buy.

A few years back I bought a manual winding machine which was quite elaborate,it was a crank,a winding odometer,a spool holder,tensioner,in a square configuration all mounted on a square platform,it was amazing,I lost it,and I'd like to get another one,anybody have a clue as to what it was,who made it or anything similar and where to get it,that's the only way I can explain it I hope it's good enough for someone to help me find another one,thanks guys.

[brucefl]

Sorry slot it was about a great offer for 240c temp magnet wire on small spools in a 6 size kit,the manufacturer is willing to start manufacturing these kits which is a way for whoever wants to wind and inexpensively.

Plus a super high temp epoxy I'm comparing qualities to the 650f temp epoxy we currently use.

But I am searching for my old winding machine,if anybody knows by my discription where to find it?

[nzoomed]

Just browsing this thread, is there a table of motor winds available here?

I was sure I saw something posted here a while back, but cant find it. Would be handy to have it pinned.

I want the data for what was considered a hotter wind for a motor of the mabuchi era.

I see winds mentioned as #28 and #30, etc was that to do with the wire gauge? What about the number of turns?

[swodem]

Contact John Havlicek for info on old motors


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[nzoomed]

Contact John Havlicek for info on old motors


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OK, I will DM him

[Bill from NH]

John has been on Facebook a couple years since he left here.

[Mark Onofri]

Courtesy of Zippie. I've got more but I'm not sure what phone carcass there in.

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