David Jenkins
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| posted on 2/5/02 at 10:35 AM |
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The other other list
Has anyone noticed that a row seems to be brewing on the locost_theory list?
It's a spaceframe vs. ladder chassis argument, and it's getting quite heated!
David
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bob
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| posted on 2/5/02 at 11:12 AM |
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I was right then,every time there is a holiday there is an argument.
The sun is out and the lasses make plans for the bank hol w/end,but the lads all want to go too Stoneleigh = STRESS 
It happened at xmas and half term as well,i may not be right but its not a bad theory eh!
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David Jenkins
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| posted on 2/5/02 at 11:26 AM |
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Except this one's brewing on the theory list for a change (normally a haven of rational discussion  )
It's still just a technical argument... but the day is young...
David
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interestedparty
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| posted on 2/5/02 at 12:16 PM |
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I'd like to have a look at that discussion, how do I do that? I thought ladder chassis was only used in cobra replicas and buses
John
As some day it may happen that a victim must be found,
I've got a little list-- I've got a little list
Of society offenders who might well be underground,
And who never would be missed-- who never would be missed!
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Dunc
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| posted on 2/5/02 at 01:43 PM |
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Why would you want to make your car out of ladders anyway? Is it a Fire Engine? Are you going to use it for your window cleaning business? Go
Spaceframe, that way the kids can use it as a climbing frame when your not using it. Ooops, I can feel the frown coming and the lips thinning, could I
be in for a ChrisG style net attack from the infamous internet tosser for daring to add a bit of humour?
But seriously, what are your views? I would say it depended on the application and layout of the chassis then do what any sane person would do and
analyse the stresses in both and overall weight then make a decision rather than close my mind to one or even both of the possibilities. Both have
there merits and drawbacks.
Christ I'm bored here, I need to get out more, never mind nearly clocking off time.
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stephen_gusterson
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| posted on 2/5/02 at 07:13 PM |
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You mean there is a riot going on in the other list and Im not in it? I must be losing my touch.
Sure its not one of those anti globalisation ladder chassi type arguments?
atb
Steve
Who will be going to his first EVER kit show at stoneleigh.
I am over 70% thjor my build and never been to a show
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stephen_gusterson
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| posted on 2/5/02 at 07:26 PM |
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Chris,
I'm curious did you simulate/run a vibration analysis also?
If you did, how do the structural resonate frequencies compare?
I assume the space frame would have a higher Fs.
CBS
The above is just a snipped of the thread of which you speak.
If I read any more I would have to slash my wrists.
And to think, I just bought a pile of steel and went and built the thing without doing a finite stress analysis.
I feel such a fool.
I must cut my car into tiny peices and have it taken to the scrap yard right away.
How could I have been so stupid.
Or is it just TECHNOBOLLOCKS!!!!!!!
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Dunc
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| posted on 2/5/02 at 09:24 PM |
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Tut tut Stephen, you mean you have completed 70% of your chassis and you haven't done any FEA on your basic chassis? I guess your not planning on
taking your car up to Mach 3 then where there's a possibilty that the chassis might shake itself to peices if one of the bolts on your propshaft is
0.000013g too heavy.
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Dunc
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| posted on 2/5/02 at 09:27 PM |
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Oh no! I'm worried now, maybe I should do one of those structural frequency thingys on the shelf I just put up in the living room just in case it's
the wrong kind of shape. 
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Dunc
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| posted on 2/5/02 at 09:29 PM |
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Hey where's the metal hippy anyway? not heard from him in a while. He's one of those Mechanoid students is he not, must be exam time. We could all
use his special skills at student prices to go round hitting our spaceframes with a hammer and listen to the ringing it makes.
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chrisg
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| posted on 2/5/02 at 09:47 PM |
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Hmmmmmmmmmmmm......
I'm still on the theory list, I wonder if I should...............no perhaps not!!
Cheers
Chris
Note to all: I really don't know when to leave well alone. I tried to get clever with the mods, then when they gave me a lifeline to see the
error of my ways, I tried to incite more trouble via u2u. So now I'm banned, never to return again. They should have done it years ago!
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MarkD
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| posted on 2/5/02 at 11:49 PM |
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I've had a set of ladders resting on top of the cut up escort shell in my garage for the last 2 weeks - does this count as a ladder chassis? (It's
been an hard night at work
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Metal Hippy™
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| posted on 3/5/02 at 07:14 PM |
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It's ok Dunc, I'm still in circulation.
Regarding me going round and hitting things with hammers for accoustic analysis etc you can fu*k that.
As I came to the conclusion a long time ago that mechanical engineering is actually a huge pile of nutsack you won't catch me doing anything more
with it than I have to....
Cheese.
Rich.
President of the Non-conformist Locost Builders Club. E-mail for details...
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Alan B
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| posted on 15/5/02 at 02:45 PM |
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quote:
I came to the conclusion a long time ago that mechanical engineering is actually a huge pile of nutsack
I disagree, it's just inappropriate application that's a load of nutsack 
A bit of theory is OK (yes, I'm on that list), but there comes a time when you have to just get up off your ass and actually do something 
That time, I suspect, is a long way off for some of the theorists 
The arguement went something like: "A really good ladder frame can be better than a shite spaceframe" Er..of course it is!, like a really good horse
and cart is better than a broken down car.
Ah well back to the drawing board, sorry workshop
Alan B
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