1321 replies to this topic

[hiline2]

The Russkit/K&B style chassis.

[boxerdog]

I just remove the front section of the chassis and maybe the motor brushes, then put the magnet between the plates of the zapper and buzz away!!

[don.siegel]

Here's the Ramcharger assembled, with all decals applied; still not sure if I'm going to add an interior. 

Don 

 

 

 

[Lone Wolf]

Looks great, if you have not done so yet may I suggest a coat of clear over the decals. Half of them would probably be gone when you got the car back

[Gator Bob]

Very cool super clean car, Don.

 

Should go pretty good, looks very lightweight. Maybe space the guide flag so it doesn't run on the fronts ... or just barely touch.

 

 "'Lodex' is in the house" ...  

[Gator Bob]

Joe, please note that great care is taken in handling of the cars. Some really fragile model body cars and trucks were entered last year.

 

Clear over decals looks great and never hurts ... unless it causes the paint to wrinkle   ... I just 'totaled' a finished body paint job yesterday doing that ...  

[don.siegel]

Yep, I was definitely planning a clear coat Joe, but hesitated because 1) I've never actually done that! and 2) what Bob said... on the other hand, the body isn't painted, but hope it doesn't wrinkle the decals! 

 

Don 

[boxerdog]

First, I have a question for Mr. PittMan...Bob, what did you make those great looking lead wires out of??

 

And then, this has been Kemtron Week for me, and I only finished one.Hope y'all like it, and thanks again to John.

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[SlotStox#53]

David do I spy some custom endplates on that Kemtron ? Especially the comm end with the Pittman brushes and possible comm timing adjustment

Very Kool! !

[boxerdog]

Paul, I wish I had more of those. That is the only set I have ever seen, they were part of a Kemtron "kit" and I got them on Ebay somewhere many years ago...so I was determined to try them. I think the brushes are Ram 196-size.  I probably should have used ball bearings, but I didn't. The motor seems very sensitive to timing and is getting gradually broken in, maybe back in the roadster tomorrow if I can fit a suitable gear. 

[SlotStox#53]

Even cooler being actual Kemtron kit, found a few kemtron cast Pittman style endbells for the 36D like the RAM & Simco ones but never those! !

The bottom plate almost looks like the one from either the Mustang or Bronco X503 based motors without the branding/casting marks...

Sure looks one quality motor David, great job

[Pitt Man]

What a cool looking Kemtron, David!

 

I've been using Marklin wire.

 

This wire is used by the model railroading crowd for wiring tracks. Many colors are available

 

I believe this is the same stuff used in the 60's, comes in 33 foot boxes and 24.3 AWG, readily available on eBay and from RR suppliers.

 

 

 

 

[boxerdog]

Thanks, Bob.

[havlicek]

Yikes, that really is a lovely Kemtron!  VERY nice work David!

 

 

 

The motor seems very sensitive to timing and is getting gradually broken in, maybe back in the roadster tomorrow if I can fit a suitable gear. 

 

Yeah, that's what I've seen also.  I imagine that's because each com segment is only 1/5 (72 degrees) of the total.  Are the brushes the same or close to the same size as the originals?  Wider brushes mean more overlap.

 

 

-john

[SlotStox#53]

Much wider brushes John

David's using wide RAM square brushes whereas the originals are narrow cylindrical ones..

[Ramcatlarry]

Too much overlap can lead to stalled starts and overheating.  May need to take a corner off the trailing edge to reduce the problem without reducing the timing - something we have found on the newer FK proslot motors.

[BillB]

Hello to All,

 

Thought it was time for me to get my butt in gear and get ready for the up coming race.

 

Bob, Include my entries into the following classes.

1 - Altered

1 - Gasser

1 - Comp Coupe

1 - Rail

1 or 2 - Unlimited

 

Don, I've had good success using Minwax fast drying Polyurethane clear gloss over decals. Spray on a lite tack coat wait 15 minutes +or- and then spray a wet gloss coat. Of course with anything untested try it on a sample piece first.

 

Bill

[boxerdog]

The motor runs ice-cube cold and has no starting issues, so I doubt that overlap is an issue, it is a pretty large comm. I think John hit it on the head in that the comm dwell is less due to being a 5-pole. I just want to make sure that it is somewhat directional and running in that direction. Also, I always thought that maybe the weakness of the KTM design was the pencil-lead brushes and fragile springs. The brushes would seem to wear fast, carry little current and are a bitch to find when they shoot across the room, However, the motor may be the biggest sleeper ever, particularly on lower voltages.

[SlotStox#53]

Was wondering about trying to customize the brush gear on the Kemtron motors due to the very reasons you mention David But time and parts available mean the H-Power armed Kemtrons will go into competition with the standard bits for the moment , with a view for future mods later on . Can't wait to see what that motor does down the strip

[hiline2]

Anyone needing (wanting) some Kemtrons !!

http://www.ebay.com/...=item4637e6e6cb

[boxerdog]

Anyone needing (wanting) some Kemtrons !!

http://www.ebay.com/...=item4637e6e6cb

...and only a few miles away!  Why don't I ever find this stuff? Maybe if I started hitting garage sales. That looks like a vintage box, too. BTW, here is the endbell "documentation" that I had.

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[SlotStox#53]

Anyone needing (wanting) some Kemtrons !!
http://www.ebay.com/...=item4637e6e6cb

OMG! why don't these mother loads ever turn up when I have enough cash to bid!

Thanks for the Kemtron info sheet David

Searches *Kemtron* on epay religiously from now on !

[hiline2]

Im always  scouring epay, so Ill post more if you want on the oldies !    

[Gator Bob]

First, I have a question for Mr. PittMan...Bob, what did you make those great looking lead wires out of??

 

And then, this has been Kemtron Week for me, and I only finished one.Hope y'all like it, and thanks again to John.

 

 Wow, that is a first for me. I did not know Kemtron made aluminum endplates. Outstanding motor  ...

Hello to All,

 

Thought it was time for me to get my butt in gear and get ready for the up coming race.

 

Bob, Include my entries into the following classes.

1 - Altered

1 - Gasser

1 - Comp Coupe

1 - Rail

1 or 2 - Unlimited

 

Bill

 

That's awesome Bill, glad you're signed up.

Guys have really upped their game this year. You'll have the chance to see and drive some great cars.  

[Gator Bob]

Trying to get some clearance for the brush arms ....

Lots more cutting and fitting still to do, OMG ...these are harder to build than a brass/wire Retro scratch chassis.

Normally I put the motor IN the chassis not half of the chassis in the motor ...