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The Duffy "HooDoo"


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#1 Duffy

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Posted 11 December 2010 - 11:12 PM

See, here's the deal:

I'm young enough (read: newly returned, and "It's never too late to have a happy childhood") to be pretty darn ignorant, and:
Experienced enough in divers engineering and crafts backgrounds to muck up any modesty I could muster to address the ignorance.
So, I'm basically screwed.
Can't learn from scratch, I'm 45 years too late; and can't start from a place of NOW, because part of me wants to know the why of everything that's going on. Which means--
Can't just build a Retro car.

Ohh, I've tried. Did all the homework I could, talked to a lot of knowledgeable & helpful Old Dudes, & have begun to get a sense of what a chassis is all about. Fine & good, but any time I tried building something per another's example I'd get bogged down--"why's he doing THIS here, I don't see how/why..." And my attempts so far either have been hampered by my not-seeing the intent in whatever example I'm looking at, or (in some cases) the intent has crept somewhat from its origins--a thing the proto builder might have overlooked, and for which I have no perspective at all!

So, it's time to learn. Ergo, the present build, for learning. Later, in the Vanity Shots, I'll give props to the guys who set the design direction for this.

FOR NOW, two things I know: (1) I want to learn what different elements of a chassis do, individually and in concert; and the way to do that is to build a chassis I can try things on--check an idea out, see what it does, swap & compare, run against itself (meaning, two or three of the same original roller); and (2) I need to have something that'll survive my driving and not break while I try it out. Up to now, I've had something break at every race I've run. My sense of stressing-out a structure, at least as I've copied others to date, is way lacking. So, I wanna build a bombproof chassis that I can quickly & conveniently swap in new elements on.

AND I"m writing it all out here, because someone in my present state of hobby might happen along and find something that resonates. The rest of you lot, I hope it entertains.

Okay then.

Sooo, I lit some candles, put Dr. John's "Danse Kalinda Ba Boom" on the box, and Waited For My Rider To Come.
And, from Out Of The Swamp--

D33H1.jpg

THIS emerged: nosepiece .040" sheet with .050" reinforcer. Rick Geo immediately dubbed it the "Hoodoo"--in
response to my naming his a/w nose "Choirboy" last month. Fair enough, and I'll play with that. The guide tongue
in the nosepiece is cut narrow for better coining of the radiused step, and then--

D33H2.jpg

--the reinforcer angle extends further out, like a hood. Here you see what the little tabs in the wheelwells were for,
I've bent 'em over to make heavy-duty plumber hinge "gudgeons" instead of trusting wee little soldered-on bits of
flimsy tubing. Bombproof, remember?

D33H3.jpg

Besides which, as I experiment with "shaky" & "twisty" plumbers, I can root out these holes in any way I wanna
try. If something don't work, I just hammer 'em round again...

The only other fancy thing I did here was the shaker pintubes:

D33H6.jpg

Now, Marty Stanley posted some cool stuff the other day, he just set a little bit of aluminum tube in a handy hole
and used it as a depth stop to solder grommets onto tubes--well, I made two bits of tube, used one to set a
filed-short grommet to length, then slipped the wire you see here around and soldered on another grommet
below. Presto, shaker pintube. I can bend the wire bracket to set whatever height--

D33H8.jpg

--Which I get from my standardized Can-Am body template: just set it up in the jig, fit the pintubes to the holes,
tack in. Now all my bodies can be drilled to match all the chasses.

A quick return to its Element, in company with Don Undead--

D33H9.jpg

--And a little buff, & we're ready to take Vanity Shots. Presenting HOODOO Ver. 2. Like my man Muddy,
I am Holding My Own...

D33Hv1.jpg

In conversation with Matt Bruce and TonyP, I tried to get away from the full-pan (and "Painted With Lead")
tradition I was running, opening up somewhat and concentrating mass in three specific areas instead of
all the way across; should give me the same mass moment with less baggage in between. On a whim,
I figured I'd go Plumber and see where it led me.

Nosepiece .040" & all the rest .050"
Main rail .078"
Plumber & front axle-brace .062"
Full-floating bite bar .055" in .065" sq. tube

D33Hv3.jpg

Here's the front end. Axle brace pulls extra duty as nosepiece stiffener. Here you can also see the slop limiters
on the plumber pintles, the little U-bit stopping the outer end of the wire to keep my 3.125" width constant and
adjustable inner slop bent-in.

D33Hv4.jpg

Rear end will have ball bearings. In this first iteration, I'm spreading out the footprint for the bearing sleeve so I've braced
it pretty heavy. I may bring 'em inboard later, as some guys're talking me that way. This is RGeo's new Retro bracket,
.050" brass with proper corner radii and plenty stiff by itself, & the holes are accurate to Duffy-specs, no small deal.
Like 'em a lot.

This will hit the track next Thursday, with a Puppy Dog inside, and I'll have a chance to run it against Ver. 1 with its TSR D3. That one wanted a .50" square of Lead Paint at the front corners, and with that the car got glued to the track, rear swinging out most predictably. Big, big improvement, & I hope I'll see more with the presumed lessons I've built into this one. More later if it's significant.
Michael J. Heinrich
1950-2016
Requiescat in Pace
 
And I am awaiting
perpetually and forever
a renaissance of wonder




#2 Alchemist

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Posted 11 December 2010 - 11:32 PM

Real nice Duffy! I like it!!!!!!!

Ernie
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#3 Mopar Rob

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Posted 11 December 2010 - 11:37 PM

Did 15 year old Duffy cut that nose piece out with a coping saw or did older Duffy machine that out after work?

Anyway interesting piece.


I really like universal pin mount system. Not sure if you ever have posted that before?
Rob Hanson

Shops at Mid-America Raceway and uses R-Geo Products
 

Rob was right!


#4 Duffy

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Posted 11 December 2010 - 11:46 PM

Did 15 year old Duffy cut that nose piece out with a coping saw or did older Duffy machine that out after work?

HAH!! 60-yr-old Duffy roughed it out on a bandsaw and filed the pertinent surfaces to size, as his Geeky Inner Duff complained loudly.
--Particularly about having a decent Datum-Dedicated jig to tweak measurements off of as I filed!!

D33H4.jpg

May try to stay Forever Young, maybe, but hopefully not forever foolish.

I really like universal pin mount system. Not sure if you ever have posted that before?

Yah, some appeared in Marty Stanley's thread. Marty opened up a way to make this fussy drudgery easy, and I thank him.

Duf
Michael J. Heinrich
1950-2016
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#5 Pablo

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Posted 12 December 2010 - 12:06 AM

Sweet :D
I love the shakey shakey pin tube mounts, overbuilt and proud of it :)

Thanks for the pic of the bulldog clip holding the device that ensures the thingamabobs are flush on the sides;
that frees up one hand..... nice ! ;)

I think you are on the right track.. The HOODOO scares the crap out of me :scare:
Paul Wolcott

#6 Duffy

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Posted 12 December 2010 - 12:36 AM

Oh, yah. When I was givin' it up to the guys who stagemommed me with this concept, I didn't mention Pablo, who unselfishly hammered on me nonstop for 72 hours to NOT OVERTHINK THE DAMMED THING. Thank you, Paul.
Michael J. Heinrich
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#7 Pablo

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Posted 12 December 2010 - 01:58 AM

Be sure and let me know if the front clearance turns out to be perfect after the wheels are installed.
:shok: No cheating by multiple Hudy trimmings; I want you to tell me they come right out of the bottle and clear a perfect .020 ;)
Paul Wolcott

#8 Marty Stanley

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Posted 12 December 2010 - 03:05 AM

Duffy,

My friend, you are more than welcome! Hey, it was sitting right in front of me and all of a sudden I went from rounded shoulders to a flat forehead and just wanted to share the idea! As you are more then aware, sometimes the most obvious tends to stay very obscure!

Now, you made this statement, "May try to stay Forever Young, maybe, but hopefully not forever foolish." I'm not sure how you intend to perform the latter, but I hope we both continue to perform the former, forever!

I had tried those 'little springy thingys' awhile back and really didn't like them. Oh they worked adequately, but there were some issues during the mounting of the body I just did not care for. I have pretty much settled on a new way of doing that. Since you liked the other tip, here is a photo of my new moving body mounts.


Posted Image


Basically it is a piece of .032 wire inserted into a normal .014 walled piece of 1/16 brass tubing that is soldered to the main rails of the chassis. The body mount passes through a piece of 5/32 tubing that is soldered to the outer pan. That limits the movement. You simply make the bend in the .032 wire, solder the body mount to that and it's nice, light, cimple and easy to make. There is a piece of .015 wire going back to the bite bar to control the rate that the body mount moves.


Pablo,

You said, "I think you are on the right track.. The HOODOO scares the crap out of me :scare:"

Once it's been tested and Duffy finds out that it works as well as we both think it will, we can both say - simultaniously if applicable - "Duffy, You Do that VooDoo that makes Hoo Doo work so well!"

BTW, do you know they make a .006 wall thick 1/16 tubing that .047 wire fits right in to? I think you might want to possibly take a look at that concept for some chassis?
Marty Stanley
1/24/48-2/18/16
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#9 Don Weaver

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Posted 12 December 2010 - 08:58 AM

Marty,

I tried some of that "thin wall" tubing awhile back for floppys and found that it would actually "tear" if involved in a crash (which was common for me!).

Don Weaver

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#10 Joe Mig

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Posted 12 December 2010 - 09:41 AM

Cool Hoodoo you built there Duffy.
Did you put any angle 2 to 5 to degree of upward rake? I just don't see it in the pix.
Joseph Migliaccio. Karma it's a wonderful thing.

"Drive it like you're in it!!!"

"If everything feels under control... you are not going fast enough!"

Some people are like Slinkies... they're really good for nothing... but they still bring a smile to your face when you push them down a flight of stairs.

#11 Duffy

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Posted 12 December 2010 - 11:43 AM


Be sure and let me know if the front clearance turns out to be perfect after the wheels are installed. No cheating by multiple Hudy trimmings; I want you to tell me they come right out of the bottle and clear a perfect .020


Not telling you any of the sort, O Tonsorial Minimalist Goombah. My usual JK fronts, got four of 'em here--run .7795" to .7810" for an extra .015" clearance And this neet new pair I just got, dunno the brand but they're hard as rock--WO! .7575" on one, .7650" on the other. Ummm--thanks for the reminder, Pablo, I wouldn't've thought of it. Now I'll never forget it.

See, that's why I want to do this kind of thread; not because I think I'm clever enough to reinvent a 40-year-old wheel, but because I'm arguably astute enough to want to discuss the engineering and good practice that I and we may find important, including all those little essential points I and we may forget to mention until we see it pop up. Good for me right now, maybe good for someone else who'll read this at some point where he hasn't yet established habits firmly enough that he forgets he's doin 'em naturally. And this just may be the most run-on paragraph I've ever written.

Here's another one:

Did you put any angle 2 to 5 to degree of upward rake? I just don't see it in the pix.



Good call, and if you're wasting what remains of your sharp eyesight scrutinizin' my stuff, you have less of a life than I do!


No, the coining tool is just flat-turned discs, you can see it in the second pic. I just figured I'd put it in at assembly. (How would I build that cant into the tool?) Part of the problem is, the 10-32 screw in the R-Geo bracket wouldn't fit in a canted hole, my clearances are too tight. I'll bend it in now, which is its own ball of snakes but I don't see a better way. I'm hoping my hoody coined overbuild is more durable--if it's hard to bend the cant in, it may not go out as easily. The prototype used a simple z-bend in .050" stock and I was tweaking it all day...I know I know, learn to not-crash and the problem's solved.

Oh, and that pic brings up another point, from earlier:

Did 15 year old Duffy cut that nose piece out with a coping saw or did older Duffy machine that out after work?

15-yr-old Inner Duffy grudgingly admits my sawing job is sufficiently sloppy--see the nearside plate looking crooked? It ain't just parallax distortion!

I scribed up four of these nosepieces to cut out; considered stacking and machining, considered all those setups grabbed in precious lunchbreak time at the shop, and just went "Wait...why?..."

See, there's a tradeoff here. Some processes, the amount of setup and planning needed to achieve a level of accuracy you're trying for--naww, saw file & measure and in the space of a cup of coffee you're on to the next thing, all in the comfort of your home.

I don't know where the line for that is for everybody. I know I've erred on both sides of it myself plenty times.

Duffy
Michael J. Heinrich
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#12 Tex

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Posted 12 December 2010 - 12:40 PM

Nice chassis, Duff. The last thoughts you posted are very telling. We can spend a lot of time, I mean a LOT of time, trying to engineer the PERFECT chassis in our mind, doing and redoing and remembering this trick and don't forget THAT trick, or..... just start building and let it happen. You may not get everything done on one chassis; that way, we get to build another to try out those things left undone on the first. But in the end, you have a couple of chassis' built instead of just perfect ideas stuck in your head(paralysis by analysis); you have something to PLAY with while you think of new mountains to climb. Gotta have some fun for the 12-year old, ya know?
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#13 Marty Stanley

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Posted 12 December 2010 - 01:29 PM

Marty,

I tried some of that "thin wall" tubing awhile back for floppys and found that it would actually "tear" if involved in a crash (which was common for me!).

Don Weaver



Don,

I try NOT to use that tubing, for the reason you stated, on pans that can make contact with the wall. When I build one of the outer / inner pan chassis, I always use that tubing for the inner pans as they are protected by the outer pans during unfortunate incidents!

Pablo likes to build main rails out of .062 wire inside of .093 square tubing. I was suggesting he try some .006 1/16 tubing with .047 wire soldered inside for his main rails. I have a chassis in my mind this morning - I'm starting to come up with ideas for chassis now in my sleep - that will use that technique.

BTW, I still have my 'Official SERRA Brenda's Sausage Biscuit Plate" sitting right on my build area. Alas and alack, it is empty and void of those succulent little sausage creations that your wife makes. It's time for another trip to Abbeville. Probably soon as I get clearance to travel and so anything from the doc.
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#14 Joe Mig

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Posted 12 December 2010 - 02:46 PM

Good call, and if you're wasting what remains of your sharp eyesight scrutinizin' my stuff, you have less of a life than I do![/size][/font]


No scrutiny here I was just trying bring something to your attention.
Joseph Migliaccio. Karma it's a wonderful thing.

"Drive it like you're in it!!!"

"If everything feels under control... you are not going fast enough!"

Some people are like Slinkies... they're really good for nothing... but they still bring a smile to your face when you push them down a flight of stairs.

#15 Duffy

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Posted 12 December 2010 - 03:28 PM

No scrutiny here I was just trying bring something to your attention.

And I was having fun with you. Start to finish.



Michael J. Heinrich
1950-2016
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#16 Joe Mig

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Posted 12 December 2010 - 03:55 PM

And I was having fun with you. Start to finish.

Fun is what it is all about. :D
Joseph Migliaccio. Karma it's a wonderful thing.

"Drive it like you're in it!!!"

"If everything feels under control... you are not going fast enough!"

Some people are like Slinkies... they're really good for nothing... but they still bring a smile to your face when you push them down a flight of stairs.

#17 Pablo

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Posted 12 December 2010 - 07:30 PM

Pablo likes to build main rails out of .062 wire inside of .093 square tubing

Wrong. And it ain't that simple.

Also, for anybody who may be curious, I was trying to convince the Duffmaster of setting up the front axle assembly in a manner where one would be able to PRECISELY set, and be able to adjust, the EXACT front clearance of the chassis. It is extremely difficult to secure the axle beforehand and have the clearance end up perfect. But of course somehow his method worked so I cannot fault it. :)
Paul Wolcott

#18 Duffy

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Posted 12 December 2010 - 07:48 PM

Wrong. And it ain't that simple.

I officially invite, encourage, and sanction hijacks, creep and drift in MY thread. Go for it.

Also, for anybody who may be curious, I was trying to convince the Duffmaster of setting up the front axle assembly in a manner where one would be able to PRECISELY set, and be able to adjust, the EXACT front clearance of the chassis. It is extremely difficult to secure the axle beforehand and have the clearance end up perfect. But of course somehow his method worked so I cannot fault it.


Don't be quite so quick, Glosstop, I just used jig wheels for optimum axle setup and trusted the store-boughten tyres to do the rest. You've reminded me big-time that this mightn't be the case.

In the first iteration of HOODOO I went apespit with my wire-bending, looping both the uprights off the main rail and the font brace over the top of the axle for "maximum solder area"--the front brace was a topological conundrum that would make a Texas Longhorn blush, I swear. Well, TonyP and Pablo both gently apprised me of the time I'd have if I should ever have to make adjustments here...and I listened.

Being the micromanager of dimensions I [claim to be], my axles supply my optimum clearance; the rest is up to the tyres, and that's up to my grinding.

Duffy



Michael J. Heinrich
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#19 Rick Moore

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Posted 12 December 2010 - 11:14 PM

Duffy

Since Marty, Tony & Pablo have offered you their ideas, and you're actually listening to these guys, I figure you might be crazy enough to listen to me too! :laugh2:

On the matter of front axle mounting, there's more than one way to skin a (animal reference omitted at request of SPCA), I've got my own system of making two wire axle uprights that span the chassis fore and aft of the axle; here's a pic:

1305C-P4e-1.jpg

They are superstructure, not components of the chassis frame. Yes, there are four bends in each of them (Tony's head is probably getting that migraine thing again…), but they're not that hard to make and all I use is needlenose pliers and a vise. They're angled for better stability and strength. The axle just drops in between them at the desired height, and is soldered along the width of the uprights. Makes replacing a bent front axle (or even the uprights if things got really really bad) quick and easy should the need ever arise.

Rick (aka CMF3) ;)

#20 Pablo

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Posted 12 December 2010 - 11:35 PM

More than one way to skin a stray cat ? Yes.
Is it strong ? Yes.
Is it simple ? Yes.
Is it easy to adjust the clearance precisely ? Yes.
Could you have a complete spare axle/wheel assembly ready to go and change it out quickly ? Yes.
Will it bend before it breaks ? Yes.
If it breaks, will it ruin other components ? No.

Rick, together maybe we can convince him :D In his current neapolitan state of mind, he cares not about a couple thou here or there. In time he may :shok: Then it would be "Katy-bar-the-door", Duffy is eating Chinese with his micrometer again :D :on_the_quiet2: :paint2: :bb: :ph34r:

BTW, Rick, Duf said we could drift, so:
I may bring my chihuahua to the next Viper Pit race, so bring a muzzle for killer, I mean Joey :P :lol:
They may have to cage the cats.
Paul Wolcott

#21 Noose

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Posted 13 December 2010 - 09:37 PM

Duffy,
Technical mumbo jumbo aside. Nice job dude.;)

Joe "Noose" Neumeister
Sometimes known as a serial despoiler of the clear purity of virgin Lexan bodies. Lexan is my canvas!
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#22 Pablo

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Posted 14 December 2010 - 03:39 AM

HOOOOOODOOOOOOOOO :diablo: :paint2:

post-1540-127361420393.jpg
Paul Wolcott

#23 Duffy

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Posted 06 January 2011 - 06:51 PM

HOOOOOODOOOOOOOOO :diablo: :paint2:

Occasionally, I doo.

A bump-up, partly, and first shakedown impressions:

Got this chassis out on the track a little this weekend; didn't have time to resolve guide-height to SAL's King track--I got my wish, made that tongue so strong I can't even bend it on purpose!!--but a few minutes doing laps reveals no glaring challenges. Car seems to run just like HD1, only hotter with the Puppy Dog in it. I'll get over next week and work more with it. Happy so far.

And now, a crisis. I put it here because this thread's already going, because it's MY thread anyway & I'll do as I damm please with it, and because I'm Duffy that's why.

Which in a way IS the crisis:

A friend sorta dropped on me today, "You know--in Racing, it's considered bad luck to knowingly take another racer's nickname.
"Just, y' know, FYI...
"...I mean, since you're still in the process of becoming fast, I just thought there might be REASON..."


Ah. I did not know that.
--Soo, I may be struggling under a Karmic cloud here? My famous lack of skill, my well-earned Track Cred as Grenade On Wheels may have a Cause, and a Curse? BAD LUCK? Is this even possible? (Can I have an Excuse, besides I'm-just-a-pi$$poor-driver??)

But, still, what can I do about it?
See, first, I came home and tried to find confirmation that "Duffy" is really a Nickname. (It turns out, Is. Frank "Duffy" Livingstone. Darn.)
Then, I thought about playing The Semantics Game. (Well, the key is "knowingly" as in, I didn't adopt the nickname knowing it would bring me bad luck! --No? Okay, no. Darn, again.)
Well, hmmmm.

AH! I got it:
It's not really that Duffy.
Nope, sounds like but no. Uh-uh, no similarities here. Pay no attention to that polkadot helmet behind the curtain. Because--
--because I took the name from one of my musical heroes, late-Medieval / early-Renaissance hotshot Guillame DUFAY.
No, really. Great guy, Dufay, played a lot of his stuff back when I could play. So, naturally, in my waning years I vainly co-opt his name to remind me of the excellence I contiinue to strive for. And it ain't no NICKNAME, Jack, that's a durn SURNAME.
And, everybody knows they hadn't standardized spelling in the Renaissance, right? (e.g. "Shakespeare, Shake-Speare, Shaxper, Rattle-Speare, Bacon...")
Ergo:
DUFFY.
Pronounced. Duh-FIE. Or, well, however. We haven't standardized pronunciation in modern-day Brooklyn. Say it, y' know, As You Like It.

Works for me. Okay?

Duf


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#24 Marty Stanley

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Posted 06 January 2011 - 07:08 PM

We haven't standardized pronunciation in modern-day Brooklyn. Say it, y' know, As You Like It.



Duffy,

I never knew that Brooklyn ever had a standardized pronuciation! Aside from the day that the Dodgers left Brooklyn for life on the left coast in a ravine, I've never heard anything from Brooklyn, other then phrases like "Youse Guys". Okay, so most names are prefaced with terms like "Yo", like in "Yo Tony" or "Yo Joe" or the more famous, "Yo Vinny" - that usually gets the majority of the people gathered anywhere in Brooklyn to turn and ask "Wha?" About the only other name with as much popularity in the world is "Bob". I remember one time when I worked in an office with 3 guys with the name of "Bob". I found it quite easy to get any of them, all I yelled was "Bob" and they all came running.

Now on nicknames . . . . I had heard that you were being called "Roadblock" at one time by your fellow racers. I have no idea what they meant by that!

Rather then bending, you might want to try the more effective washers between the guide tongue and the guide flag!
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#25 Duffy

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Posted 06 January 2011 - 09:43 PM

I never knew that Brooklyn ever had a standardized pronunciation!

Nope. But now, "Yo [ Kaz, Ahmed, Jesus, Kareem, Bruce ]" will get you just about the same result. It's a Polyglot Hipster Mecca these days, B'klyn is.

Now on nicknames . . . . I had heard that you were being called "Roadblock" at one time by your fellow racers. I have no idea what they meant by that!

Yes you do. Thanks; but you do.
Yup, I'm the freekin' Slots Kaopectate, I am.

Rather then bending, you might want to try the more effective washers between the guide tongue and the guide flag!

Yah, but in this case it's the opposite, I didn't coin deep enough and I need juuuust a little more. Soon.

Dew-Fie
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#26 Duffy

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Posted 09 January 2011 - 03:08 PM

Not really in the HOODOO lineage, but--


Duffy36WEEDOO.jpg


My second Retro32 chassis. I'm trying to get something going out here on the Right Coast, and a few demos
may help things along. You see the Warmack pedigree here--tho't I had bits but no, had to improvise. JK
bracket filed down for .74" min. tyres, the rest stock-on-hand, including a surprisingly pleasant session
cutting out the sidepans and losing nary a Dremel disc. 42g as it sits.

Full-floating bite rear bite bar was a "seems like a good idea" thing, based on an app RGeo suggests by
holes in his new brackets. I bet I'll want to tie the pans together better for more fore-aft control. One move at a time.

--AND it's over here on this thread for the (inevitable) name: it's a small car, sooo--WEEDOO!! (Hoo else?)

Duffy
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#27 Duffy

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Posted 16 January 2011 - 10:13 PM

Rob's all smug because he's buildin' today while we're all scrappin' and wringin' our han's...
But I wuz buildin' too! And fixin' my airbrush and turnin' tyres and and and...


I woulda had this at the track, along with my race-ready HooDoo 2, but for getting embroiled in a
domestic squabble. No matter, gives me a chance to do a righteous Lola T-600 for
draperies.

Duffy36WEEDOO2.jpg

Set up with .75" rears and .65" fronts, which Warmack & I agree is about as small as looks good
on these little cars & the heck with Rules; those're Roger Schmitt's Ruffs on the back,faced to
.63" wide, and Sonic Retro Fronts forward. Geared 9/28 for now, and I could go a little taller with the
smaller tyres & still be in range with the motor. See how it runs like this.

The funny plumbing you see abutting the bracket, that's a rear stop for the pans: I had slotted the port
in the bracket that the floating bite bar passes through, so it would give me fore-aft movement in the
pans; but I didn't consider the whole assembly could skew twice that amount of slop! More I thought,
the more I wanted to deal with that, so this was my solution. Forward stops're the hinge tube slamming
up against the nosepiece.

I'll get it out to the track this week.

Lovin' these cute teeny cars! I want to get me some suitable spur-gear matchups and make an
anglewinder or two. I gots me some nice McLarens to wrap around 'em...

Duffy
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#28 68Caddy

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Posted 16 January 2011 - 10:19 PM

Duffy have to say I don't know what you are talking about, but it sure looks good. ;)
Is it a 1:32 ride?


Nesta
- Gabriel
Nesta Szabo

In this bright future you can't forget your past.
BMW (Bob Marley and the Wailers)

United we stand and divided we fall, the Legends are complete.
I'm racing the best here at BP but Father time is much better then all of us united.
Not a snob in this hobby, after all it will be gone, if we keep on going like we do, and I have nothing to prove so I keep on posting because I have nothing to gain.
It's our duty to remember the past so we can have a future.

Pistol Pete you will always be in my memory.

#29 Duffy

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Posted 17 January 2011 - 05:40 AM

Yah, built to D3 Retro32 rules as I wrote in the post directly above that last. I'm trying to get the local guys interested, and one way is to hand 'em some cars and watch the smiles go around. And I'm having fun building. Therapeutic.

Duffy
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#30 ShootinSparks

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Posted 19 January 2011 - 02:27 PM

How about a little musical interlude in the hoodoo spirit... Creedence... y'all know which song I'm talkin' 'bout...

Now when I was just a little boy
Standin' to my Daddy's knee
My Poppa said son don't let the man get you
Do what he done to me
'Cause he'll get you
'Cause he'll get you now.

I can remember the fourth of July
Runnin' through the backwood bare.
And I can still hear my old hound dog barkin'
Chasin' down a hoodoo there
Chasin' down a hoodoo there.

Born on the bayou
Born on the bayou
Born on the bayou

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#31 Duffy

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Posted 19 January 2011 - 06:32 PM

Thanks for that. I actually was on the bill with Creedence, a couple years before this, when I was with the Johnny Mars band.

For MY chassis, though, the lyric's a little different:

The pan gonna tremble, gear gonna strip
The wall is gonna come to harm
And all it'll take to chase this HooDoo down
is a little Puppy Dog with a Chinese arm

Born on the Bayou
Born on the Bayou
Born on the Bayou

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#32 Duffy

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Posted 22 January 2011 - 09:16 PM

Okay, while my Frens're all having fun at Slots-A-Lot with Retro East, here I am all lonely and cold & coughing
my wasted youth out like Mimi in her garret, only I don't sing as good.

But, thanks God, I can build. A litle wire & tube, some holdin' contrapt'ns, and--bassoon!*--a Retro32
anglewinder crawls out of the swamp and shakes off its Primordial Flux.

Duffy37WEEMAY1.jpg

I had a wonderful afternoon bending wire! Who says these a/w chassis are hard? The key for me was to set
up my jig with motor and rear assembly so I could bend&fit until I had everything lying the way I want. This
required a Z-clamp for my motor, overbent just enough to provide some tension and snugness on the can.

Duffy37WEEMAY2.jpg

Once I'd shoved the motor around a little and decided how wide I might get my rear tyres (.56" using Roger
Schmitt's "Ruffs" whose hubs are recessed an extra .05" to clear the spur boss) I could stack up my rear carrier
and notch it out. R-Geo sells these little screw collars, ostensibly for spacing out axles in your running set-up,
but they're real handy for locking everything down here.

Now I can bend & fit & tweak to my heart's content, starting from the rear upright and moving forward one bend
at a time. It also gave me a chance to think ahead on what I was gonna do up forward, and how I'd hang my
pans and such. --Still thinking, by the way, but Robin'll be home soon and I got other plans for the rest of this evening.


Duffy37WEEMAY3.jpg

Once everything laid down nice, I could tack the uprights and a spot or two at front of the half-rails, then free the
clamps and soak the rest.
The motor'll tack along the inners of the two rails, but I see no upper braces in pics of current R32 a/w practice:
do you guys really find they''re not needed?

What fun. More tomorrow.
Duffy

*--well, I know how tired you guys are of "and--viola!..." Besides, I'm a woodwind guy.
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#33 Duffy

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Posted 24 January 2011 - 06:36 PM

Jeez, I hope we get enough posts up here that we move on and we can stop looking at that idiot at the
top of page 2.


As I said elsewhere, I've put Pro Paint bodies on some of my cars,because they look so beautiful there
on the track and frankly inspire me to run better. I think. Recently I got Noose to do me a Duffy Livery--
once I get my Hot Chassis dialed in, the new shells are gettin' draped over the tops and I'm running in
style. At the same time, though, I've been gearing up to paint my own rides.

Most of my equipment dates from my IPMS days, so I recently upgraded to a wonderfully gusty Galaxy
compressor (thanks for the tip Noose)--and now I find my vintage Thayer & Chandler airbrush is on its
last legs. I did some serious maintenance last week and found at least one functional ankle, so as a
warmup exercise I painted THIS:

WEEDOOt-600.jpg


This is Tamiya "Burnt Metal" fogged along the sharp lines, followed by a dark-dark gray overall. The masking's
Bob Diveley's liquid mask and O Lord do I wish I'd trimmed it better, but it's an exercise, right?--I'll cover the
sloppies on the outside with a cheat line...

Well, the airbrush is working okay. the next one'll be nicer.

Now to unsack the Teeny Brushes and start renewing my uneasy acquaintance with my grumpy neighbor Mr. Lettering.

Listen, guys, part of what I do here is to invite observations & comments on what I'm doing. I am by no means
In Control of my craft nor my reasoning behind what I do, and I do not think of myself as any sort of Innovator or
Authority: I'm feeling my way through all the aspects of my hobby, and I'm looking to draw out opinions from others;
and not just for me, as this sort of discussion might be stumbled over by some future Slots Guy with even less of a
Life than we have; and he may pick up something. Or run screaming to Facebook Farming or something sensible.

Duffy

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#34 GearBear

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Posted 24 January 2011 - 07:28 PM

Duffster, you mean I have a tool you don't!:blink::laugh2::rolleyes:

Get yourself one of these and you can make your own paint masks! Now, if I could just get some time to sit down at the 'puter to draw up some nice masks, I'd be set. :shok::blink:
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#35 Marty Stanley

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Posted 24 January 2011 - 07:49 PM

Duffy,

Hey my friend, it's looking very, very good. I'm liking what I'm seeing.

So you are taking the plunge into the 1/32 scratchbuilt stuff as well? Both Rick Moore and I have built a couple o 1/32 chassis and they are a ball. We kinda sorta did a 'paraphrase' of the D32 rules. Made it a lot easier to build.

Those 1/32 cars look awesome with .810 wide tires stuffed under a 2.5 inch wide body. I did an inline chassis, Rick did an anglewinder with the wide tires. Not only slick, but quite sick as well. They were a blast to run on "The Colossus of Riverview" and if you ever decide to make a trip south to enjoy the balmy weather, we'll head on down there and just enjoy ourselves running our little toy cars on that big old track!

Keep up the work - it's all looking good.
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#36 Duffy

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Posted 24 January 2011 - 08:07 PM

Duffster, you mean I have a tool you don't!

Every quarter not for laundry money goes into a jar for this.



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#37 Duffy

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Posted 24 January 2011 - 08:10 PM

So you are taking the plunge into the 1/32 scratchbuilt stuff as well?

I've been hesitating to split off a new thread--but maybe it's time to start "WEEDOO" and "WEEMAY"...


Maybe tomorrow. If I'm still sick.



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#38 Mopar Rob

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Posted 24 January 2011 - 09:58 PM

WEEDOOt-600.jpg



Duffy:

Why are you mounting the Batmobile and not some retro body?
Rob Hanson

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Rob was right!


#39 Marty Stanley

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Posted 24 January 2011 - 11:17 PM

I've been hesitating to split off a new thread--but maybe it's time to start "WEEDOO" and "WEEMAY"...


Maybe tomorrow. If I'm still sick.



Duffy,

Perhaps you can do one like the tone of that old, old cigarette commercial where they had the camera rolling as they drove though towns around the USA asking the crowds to "Show us your Lark!" I often wonder what they got shown when they went through "The Bowery"?

Maybe we can see if there is any interest in 1/32 retro, other then out on the west coast.

I mean even if there is none, I still don't see that as a reason to not build a 1/32 retro car.

Keep up that HooDoo that you do so well!
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#40 Duffy

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Posted 25 January 2011 - 05:47 AM

Duffy: Why are you mounting the Batmobile and not some retro body?

Har--
Would've been more effective if I'd kept the rear cheeks. There just wasn't room if the body flexes.

IS12CRapp.jpg


This one's for the inline roller from earlier; the little a/w chassis, I'll wrap a proper Ti-22 over.

I may try to split the 1/32 stuff off into its own DOO tonight if the meds kick in.

Duffy



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#41 tonyp

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Posted 25 January 2011 - 07:38 AM

Duffy, I had a caravan with those same stripes up the side except the base color was black instead of burnt metal. Nice. No package yet, maybe todayH.

"And if my thought-dreams could be seen they'd probably put my head in a guillotine. But it's alright, Ma, it's life, and life only." - Dylan

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#42 Duffy

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Posted 25 January 2011 - 05:31 PM

No package yet, maybe today.

Worried now.



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#43 Marty Stanley

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Posted 25 January 2011 - 07:01 PM

Worried now.



Yep, that rye bread does not do well after a couple of days!
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#44 Duffy

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Posted 25 January 2011 - 08:05 PM

Once I forgot my wife's birthday. Remembered a day late. Called the "Day-Old Bakery" and tried to make an order. They did not understand.
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#45 Marty Stanley

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Posted 25 January 2011 - 09:11 PM

Have you ever noticed that married men only forget their wives birthdays . . . . ONCE!

Perhaps that is the only chance we are allowed to miss it. In 1979 we were moving from our rental house to our current house. It just so happened on my wife's birthday. From about 7 AM to well after dark I was moving furniture, appliances, clothing and all sorts of other stuff.

After we had everything moved in a single day, with 2 kids to watch after, I had just laid down to fall blissfully asleep when my wife started singing . . . . "Happy Birthday to me".

Needless to say, I knew I was caught and caught bad! There was no squeeking out of that situation. Yes, it was costly and trust me I knew that I had used up my one and only one 'gimmee'.

I do like the 'day old bread' concept though.

Kind of reminds me about when a good friend of mine wanted to buy a boat. His wife told him they could only afford a 'used' one, so don't look at the new ones. A couple of weeks later they decided to buy a new couch for the living room. Of course I suggested that he inform his wife that she shoule be looking at a 'used' couch. He wouldn't even tell her of my suggestion! Wimp!
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#46 Prof. Fate

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Posted 26 January 2011 - 01:13 PM

Hi

My wife, the love of my life, was not a crier. She did not suffer in silence! So, once, stupidly, I agreed with the family to hold a surprise party. Needed a 100 mile drive and she started with a storm cloud over her head and got worse. Finally, she threw a hissy fit, demanded I pull off at the next exit, made a big production of buying a twinkie a the convenience store.....and singing "happy birthday to me".

And was chagrined at reaching the destination and finding a party and mounts of chocolate cake.

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#47 Duffy

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Posted 27 February 2011 - 08:00 PM

Update.

I've been whittling the motion off HooDoo 2, and just feeling better and better about it. Now, I've been putting up copious laps at the same
time, so maybe I'm getting more dialed in myself too--but the Hot Guys who are keeping tabs on me tell me the car is at least no less reliable
as I pull the wiggle out. Finally got so I stuffed shims right up to the chocks. Pretty good.

So, having some time to mess around, I've decided to approach from the other direction, and build a basic torsion chassis for comparison.
Yes, I've heard they do & don't work under this&that circumstance, but--well, Google "George Plimpton." Sometimes the education's more
entertaining than the established truism.

Duffy42 Oxcart1a.jpg

So, I spat obscene epithets at my Stock Rack and no solid pan flew off the shelf and slapped me, so I took wire & brass and bent & soldered
in the way you see here. My first exposure to the phrase "Torsion Rod" was from the Chrysler advertisements in Popular Science, ca.~1958,
& so I figured I'd do what I recalled from those pics.

Duffy42 Oxcart1b.jpg

R-Geo bracket. Main rail's .078" and the rest's 1/16" including all brass plate. Bone-dry chassis was, I believe, 55gr.

Duffy42 Oxcart1c.jpg

Here's a Proof Shot for Pablo, as I time in my front axle. The stackup of wires in front reflects my insecurity--I resisted putting a second strap
across the guide-tongue plate, trusting the transverse axle gachinkus to keep the front end from splitting like an antelope skull in a hard impact.

Duffy42 Oxcart1d.jpg

The rear stop takes advantage of the holes Rick drills in his bracket for something resembling this purpose: it's a grommet-in-grommet ball
joint arrangement. The big grommet is sanded down in length to go flush with the inside of the bracket and soldered in there, and then the rear
stop wires got snaked in & fixed in place, finally the small grommet soldered to the wires. You see inside the bracket on the far side, where the
wire loops around to fetch up against the ear of the bracket. I get a touch of up/down shake, no sidewise, and then there's springy slop from the
ball joint. If that don't work out, we limit it with a bite bar.

If I am lucky, I will start playing this week with this, concurrent with the plumber chassis. Get some practical experience & knowledge also, if I'm
even luckier.

Duffy
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And I am awaiting
perpetually and forever
a renaissance of wonder

#48 Pablo

Pablo

    Builder

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Posted 27 February 2011 - 09:11 PM

Well executed, Michael. Proofed, Duffied, and Timed.
The stars and planets have aligned favorably tonight.
Engineering/Mechanics, meet Art and Style.

You have reached full Duffy level six, Sir. Now, take the third elevator to the left, and upon exiting, stand by for Duffy level twelve.

HooDoo !!!!!!!!!
Paul Wolcott

#49 Bill from NH

Bill from NH

    Age scrubs away speed!

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Posted 27 February 2011 - 09:12 PM

Duffy, I like that leadwire holder made from what looks to be .032 piano wire. :) :)

Bill Fernald
 

How old should a highway be before you tell it, that it has been adopted?


#50 Duffy

Duffy

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Posted 27 February 2011 - 09:56 PM

Well executed, Michael. Proofed, Duffied, and Timed. The stars and planets have aligned favorably tonight. Engineering/Mechanics, meet Art and Style. You have reached full Duffy level six, Sir. Now, take the third elevator to the left, and upon exiting, stand by for Duffy level twelve. HooDoo !!!!!!!!!

Um..
Ahhh......
Errr.............
....................Is that a------GOOD thing?...



Michael J. Heinrich
1950-2016
Requiescat in Pace
 
And I am awaiting
perpetually and forever
a renaissance of wonder





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