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R&C Pablo GT Class entry


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#51 Hworth08

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Posted 04 October 2013 - 01:43 PM

Pablo,

 

 

 

attachicon.gifRCrace2Kirby.jpg

 

Jim Kirby Team Russkit TQ second race.

 

Unless I'm missing something, there's your basic "1 rail" chassis, and brass tube at that!

 

I'm thinking the pin tube main rails are also the front body mount just above the front axle.

 

 

 

I don't see any other front body mounts so you appear to be correct! I've never seen or heard of that but I'll sure start using it. I always like using one thing to do two.


Don Hollingsworth




#52 Pablo

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Posted 04 October 2013 - 01:51 PM

You guys must have eyes like an eagle, I don't see it.


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#53 SlotStox#53

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Posted 04 October 2013 - 01:52 PM

You guys must have eyes like an eagle, I don't see it.


I don't see it either Pablo , drop arm coming along nicely :)

#54 Jairus

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Posted 04 October 2013 - 02:45 PM

Pins are entering the bent up rails just below the front windshield Mr. P.


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#55 Pablo

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Posted 04 October 2013 - 02:52 PM

Thanks Mr. JW :)  That is what I suspected but wasn't sure.

I doubt I will mimic that.


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#56 Pablo

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Posted 04 October 2013 - 07:35 PM

DSC08905.JPG


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#57 SlotStox#53

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Posted 04 October 2013 - 08:14 PM

Now that's some bracket bulletproofing!



#58 Pablo

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Posted 04 October 2013 - 11:04 PM

DSC08909.JPG


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#59 SlotStox#53

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Posted 04 October 2013 - 11:29 PM

Very nice so far Pablo :good:  That single rod drop arm really looks cool all soldered up on the chassis :D 

Progress on Team Pittmans entry is more in the small details at the moment :laugh2:  still parts gathering! (also looking into parts for an R&C GP car too so taking a lot longer!!)

Where'd you get the jig wheels Pablo?



#60 Pablo

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Posted 05 October 2013 - 07:46 AM

Those are .750 and .813 Briggs Jig wheels. Designed to use a 1/16 plate under the chassis.

As luck would have it, they are perfect size to give me 1/16 on the Rick's jig using 7/8 and 15/16 wheels :dance3:


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#61 SlotStox#53

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Posted 05 October 2013 - 07:55 AM

Now that is a stroke of luck :D can't get any better than that!

#62 Pablo

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Posted 05 October 2013 - 06:54 PM

The mission statement says I can use my imagination, rather than build a replica.

"These are supposed to be PCOD (Period Correct Original Design) cars, not replicas or even re-creations.  You design and build completely from scratch using your knowledge, experience, skill, imagination and vintage parts or currently available functional and/or cosmetic equivalents."

I used my imagination to make a unique drop arm assembly.

The hinges may look big, but they are tubes and don't weigh much.

Up stop is a piece of stealthy small tube under the front axle tube.

A length of .063 rod behind the hinge tubes provide extra strength for frontal wall shots.

I originally planned to add side and cross bracing to the drop arm to preclude twisting, but it turned out plenty strong enough as is.

DSC08916.JPG

DSC08918.JPG


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#63 Steve Okeefe

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Posted 05 October 2013 - 07:48 PM

Works for me!  :good:   Go Pablo!  :laugh2:

 

Expect nothing less from one of our most imaginative builders... :crazy:



#64 Pablo

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Posted 05 October 2013 - 07:53 PM

Ahhh now I can rest easy :sun_bespectacled:


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#65 Jairus

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Posted 05 October 2013 - 07:58 PM

No rest for the wicked....  :diablo:


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#66 SlotStox#53

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Posted 05 October 2013 - 08:01 PM

Works for me!  :good:   Go Pablo!  :laugh2:

 

 

What Steve said ! :D :good: 

 

Really cool piece of original design Pablo !



#67 Pablo

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Posted 05 October 2013 - 09:54 PM

Chassis is done.

DSC08921.JPG


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#68 SlotStox#53

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Posted 05 October 2013 - 10:02 PM

Chassis is done.

attachicon.gifDSC08921.JPG

:shok: Well Pablo that has come out really well! :dance3:  Love it!!!!! The bar had been raised :shok: :dash2: :D

 

Team Pittman better get their act together! :wacko2:



#69 slotbaker

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Posted 06 October 2013 - 02:23 AM

Looks nice Pablo.

Hope you don't mind an observation here.

When you cut the rear axle tube out for the gear, do you think the motor bracket might be a bit weak verticaly in line with the 3 holes?

:huh:

I realise the motor bracket corners are very strong, but there is only a single wall thickness above and below the screws. I suppose if you were to use large washers, or a clamp plates under the head of the screws, that would reinforce the bracket with the motor.


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#70 Pablo

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Posted 06 October 2013 - 07:24 AM

I don't mind at all, that's why I post, so y'all can catch me when I make mistakes. :)

In this case, however, I do not agree. The way I have it braced makes the face very strong.

DSC08932.JPG


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#71 Hworth08

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Posted 06 October 2013 - 09:14 AM

Looks real nice, very typical of what was run in '65 and '66. Not the glamor and showmanship of later frames but straight forward and workman like. And pure!
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#72 slotbaker

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Posted 06 October 2013 - 03:12 PM

OK, fair enough. :good:

 

As the world famous scratch builder says... Onward..

:)


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#73 Pablo

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Posted 06 October 2013 - 05:52 PM

DSC08940.JPG

DSC08942.JPG

DSC08947.JPG

DSC08952.JPG


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#74 dc-65x

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Posted 06 October 2013 - 05:58 PM

She's a beauty Pablo and that Mississippi water is really giving it some "shinny goodness".

 

How are you doing the 90 degree bends on your frame rails? They look really clean.


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#75 Bill from NH

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Posted 06 October 2013 - 06:02 PM

Looks like a winner in my eyes! You definitely hit the spirit of the period. She's a beauty, Pablo. :to_become_senile:


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My wife says I don't pay enough attention to her, or something like that.  :unknw:


#76 Pablo

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Posted 06 October 2013 - 06:07 PM

Thanks Guys :D

No fancy wire benders here, just pliers, a hammer, and a screwdriver :D

DSC08962.JPG


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#77 dc-65x

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Posted 06 October 2013 - 06:12 PM

Hang on to those pliers Pablo! Your bends seem smoother and more gradual that what I get with pliers.


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#78 SlotStox#53

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Posted 06 October 2013 - 06:35 PM

Ooooo shiny :D

Top stuff Pablo !

#79 Tex

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Posted 06 October 2013 - 06:44 PM

Why'd you put the body-mounting pin-tubing inside the other tubing.... just to give yourself a little more body to work with?


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#80 Pablo

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Posted 06 October 2013 - 06:51 PM

Correct Tex.

Plus, a bigger tube has a bigger contact patch on top of the rails, therefore a bigger solder connection, therefore more strength.


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#81 Pablo

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Posted 06 October 2013 - 07:01 PM

No rule against using modern tools, Eh ? :)

Don't BAN me :P

DSC08964.JPG


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#82 Pablo

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Posted 06 October 2013 - 09:13 PM

Delrin crown feels and sounds like crap. I may have to change it.

Everything else turned out fine.

DSC08968.JPG

 

 


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#83 SlotStox#53

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Posted 06 October 2013 - 09:39 PM

Looks like a winner to me Pablo :good:

Are you going to use a Cox gear instead of that delrin one?

Chassis really seems to be well balanced ,can just imagine it zooming round the banked turns at an R&C event! :D

Gonna be one sweet Chappy when ya done :)

#84 Pablo

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Posted 06 October 2013 - 09:43 PM

The Delrin has to go, Paul. The pitch is not correct.


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#85 SlotStox#53

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Posted 06 October 2013 - 10:08 PM

Gotcha, time to consult with your pit crew for the right one :D

#86 Hworth08

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Posted 07 October 2013 - 01:44 AM

Not sure but the gear looks awful white and could be a Strombecker that weren't much punkin.


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#87 James Wendel

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Posted 07 October 2013 - 02:33 AM

punkin ?  :blink:

 

I had to Google that one and I came up with this:

 

For those not in the know, "not much punkin" is a Southern (?) way to say that something did not amount to much, was not up to standards or was generally not very good. Also can be used when someone is lacking in energy.

http://pvp.forumopol...?postid=2314114

 

I notice that Don is from Tennessee.  It may be a regional thing. :)


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#88 Champion 507

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Posted 07 October 2013 - 02:57 AM

Pablo,

 

The motor was my birthday gift to you about the same time you got the 507 a few years back.

 

It is an Atlas can painted gold, a black Cox nascar motor endbell and a Deathstar arm that was unwound, punched the shaft through to make an endbell drive (hi Bob) and wound with 60 turns of #30. Then it was professionally balanced and trued by Jim Hahn, noted slot car motor expert. IIRC it also has Tradeship magnets in it. The lead wires are Plafit.


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#89 Pablo

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Posted 07 October 2013 - 07:30 AM

The mystery unfolds ! Thanks Doug ! :D  She runs real sweet !!


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#90 Hworth08

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Posted 07 October 2013 - 09:09 AM

punkin ?  :blink:

 

I had to Google that one and I came up with this:

 

For those not in the know, "not much punkin" is a Southern (?) way to say that something did not amount to much, was not up to standards or was generally not very good. Also can be used when someone is lacking in energy.

http://pvp.forumopol...?postid=2314114

 

I notice that Don is from Tennessee.  It may be a regional thing. :)

 

 

Hi James,

 

Back when we were truck pulling all over the country we could entertain folks by just talking.

 

I'm not too well thought of here just because I live in the northern part of the county! In fact if I lived a couple hundred yard farther north I would live in Kentucky.

 

And I talk different than I write. :)


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#91 Pablo

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Posted 07 October 2013 - 09:22 AM

Don, you must be living right - all your tips and observations seem to be batting 1,000

I'll bet that gear IS a doggone Strombecker. The teeth are sharp and it meshes like poop.

Just like a Cobra spur.


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#92 SlotStox#53

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Posted 07 October 2013 - 09:35 AM

Wow Pablo, no wonder that motor looks & sounds SWEET!! One cool setup you did there Doug :D

perfect on the wind/turns & look, gonna have to watch out for the rapid Chappy :shok: :D

#93 Hworth08

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Posted 07 October 2013 - 05:00 PM

Don, you must be living right - all your tips and observations seem to be batting 1,000

I'll bet that gear IS a doggone Strombecker.

 

Naw, nothing special. I've just made a lot of mistakes in my slot life! :laugh2:


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#94 mdiv

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Posted 07 October 2013 - 07:31 PM

Looking good Paul!


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#95 Pablo

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Posted 09 October 2013 - 08:56 PM

Thanks Mikey :D

Strombecker crown found a good new home in the round file :laugh2:

A new Cox ribbed 33T works great.  Drive train test sounds really good and strong, Doug :good:

DSC08969.JPG

DSC08976.JPG

Now, where did I put that doggone harpoon ? :crazy:


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#96 Jairus

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Posted 09 October 2013 - 09:17 PM

Nice machine Paul.
Have you tried it on a track yet?  I can't wait to get mine tested and see how difficult they really are to drive.

 

Got a chassis weight yet?


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#97 Pablo

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Posted 09 October 2013 - 09:33 PM

A track ? What is that ? :laugh2:  My nearest (club) track is 9 hours round trip. Only open on the first Saturday of the month. Which means I get to test about once every 6 months.

I did not weigh the chassis itself, but I can tell you the 100% completed car will weigh approx. 102 grams.

Keep in mind this is a small car , WB is only 3 3/4.

Balance point is right in front of the motor.

In other words, about 50/50


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#98 SlotStox#53

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Posted 09 October 2013 - 10:28 PM

Glad you found the appropriate receptical for that other gear :laugh2: 

 

Car is sitting pretty on that block , good balance point ya got there  :good:

 

Harpoon away !



#99 Hworth08

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Posted 09 October 2013 - 10:51 PM

Real nice and period! Boy it would be fun to get 12 to 15 of these old bruisers together again!

To be correct about the white gear, I was putting away some parts yesterday and noticed a small bag of white gears. Checking, they were Tradeship. Not important to this car, just for history.
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#100 Steve Okeefe

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Posted 10 October 2013 - 07:54 AM

Don and Pablo,

 

Did they look like these:

 

Tradeship Delrin Crown.jpg

 

(Not all the gears in the photo are 35 tooth)  Nice looking vintage gears with only one problem; they don'r mesh well with any common 48 pitch pinions.  :frown:

 

Tradeship's brass spurs:

 

Tradeship 733 48t Superlite.jpg

 

...have the same problem.  So, I measured the OD, made an attempt at deducing the pitch circle, and divided by the number of teeth.  My consistent result over several different attempts on several different gears (different numbers of teeth) is that they are roughly 51 pitch.

 

Pitches are usually defined in even numbers (12, 24, 48, 64, 72, 96, etc.) and 51 is obviously an odd number.  I worked out that number in the inch system, not metric, so it could be compared to other slot car gears.  Given that Tradeship products come from the "Orient", the correct (even numbered) pitch may well be in the metric system.

 

At any rate, there is one way we might be able to make these work properly; use Tradeship 51 pitch pinions.  :wacko2:

 

Better still, save the Tradeship gears for the really esoteric builds and switch to Cox gears for the R&C cars.  :good:







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