> Actually, while modeling it, it struck me that it was not obvious at all
> how this contruction could produce any sort of real catapult-movement.
The ropes around the pivot act as a torsional spring. The handles at
the back are to force the catch off the hook.

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The original full scale image is at
http://xbox.advancedmn.com/images/media/Catapult.jpg
The stored energy comes from stretching a rope spring on the axle when the 
boom is racheted down.
DLM

"RusHHouR" <gee### [at] mailnu> wrote in message 
news:web.4504417b6d4b72ce47d3ae5e0@news.povray.org...
> Well, I have no experience of mesh either. But maybe it's time to give it 
> a
> go. Height_field seems to be out of the question after all...
>
> Kenneth, I do not think this exact model ever was a real weapon. The
> original image is (I think) taken from some X-box game's conceptuals.
> Actually, while modeling it, it struck me that it was not obvious at all
> how this contruction could produce any sort of real catapult-movement.
>
> But still, I love that image.
>
> Thanks for all the compliments on the work so far! :D
>
>
>

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"Tim Attwood" <tim### [at] comcastnet> schreef in bericht 
news:45046439$1@news.povray.org...
>> Actually, while modeling it, it struck me that it was not obvious at all
>> how this contruction could produce any sort of real catapult-movement.
> The ropes around the pivot act as a torsional spring. The handles at
> the back are to force the catch off the hook.
>
Yes, and for those who have seen Scrapheap on TV, know that it is not so 
obvious to build a working one :-)

Thomas

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"RusHHouR" <gee### [at] mailnu> wrote:
> Below are the original image of the catapult that Im trying to clone,
> and the progress so far. I wish I could say the top one was mine, but it is
> of course not.
>
> Anyways, Im looking at the metal details now, and the two lion heads roaring
> in the front pussles me... I tried using a height_field from a adjusted
> googled image... but, well, it's not that great as you can see.
>
> Any ideas on how to create a lion head like that?
> Or any teqniques on transforming "real" images to usable height_fields?
>
> Kaplonk!
>
> //RH

Hello.

Maybe you can get inspired by a standard pov sample file:
scenes/advanced/ionic5.

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Attachments:
Download 'ionic5.jpg' (80 KB)

Preview of image 'ionic5.jpg'

Sean btw that throne is a great piece, I forgot to say!
And thanks Tim and dlm for enlightening me on the tecnique used in this
model.
On the issue of building a real catapult sort of thing, I remember at least
one man who has reached success:

http://www.i-am-bored.com/bored_link.cfm?link_id=18075
Cows beware! ;D

And wow, Bruno, thanks a lot!
I really should take the time to deeper explore the POV folders before
venturing out into the dark.
I think I am already very inspired by that scene!

I wonder what else I might find...

//RH

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"RusHHouR" <gee### [at] mailnu> wrote:
> Well, I have no experience of mesh either. But maybe it's time to give it a
> go. Height_field seems to be out of the question after all...
>

IIRC There is a lion model in Poser. From which you could use the head. I

recently. I used a paw as a foot for a stand quite a while ago.

Stephen

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web.450555a66d4b72ce47d3ae5e0@news.povray.org...
> Sean btw that throne is a great piece, I forgot to say!
> And thanks Tim and dlm for enlightening me on the tecnique used in this
> model.
> On the issue of building a real catapult sort of thing, I remember at
least
> one man who has reached success:
>
> http://www.i-am-bored.com/bored_link.cfm?link_id=18075
> Cows beware! ;D
He should have thrown one just to try :p

LOL after I saw the piano explode in fire, I expected to hear the car play a
chord :-p
It looks like what we called "Couillard" in middle age France
http://medieval.mrugala.net/Armes%20de%20siege/Couillard.htm
Don't ask me why it is called couillard . I'll just say that  our "couilles"
are like your bullocks (but bigger of course ;-)

Marc

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web.450563876d4b72cef1cb1e660@news.povray.org...
> "RusHHouR" <gee### [at] mailnu> wrote:
> > Well, I have no experience of mesh either. But maybe it's time to give
it a
> > go. Height_field seems to be out of the question after all...
> >
>
> IIRC There is a lion model in Poser. From which you could use the head. I
> don't know if it is present in the free version that was advertised
> recently.

Yes it is

Marc

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"Marc" <jac### [at] wanadoofr> wrote:

> web.450563876d4b72cef1cb1e660@news.povray.org...
> > "RusHHouR" <gee### [at] mailnu> wrote:
> > > Well, I have no experience of mesh either. But maybe it's time to give
> it a
> > > go. Height_field seems to be out of the question after all...
> > >
> >
> > IIRC There is a lion model in Poser. From which you could use the head. I
> > don't know if it is present in the free version that was advertised
> > recently.
>
> Yes it is
>
> Marc

Thanks Mark
In that case RusHHouR, you might be able to export only the head or delete
the body in Poseray. Assuming you downloaded it.

Stephen

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On Mon, 11 Sep 2006 08:41:52 +0200, "Thomas de Groot"
<t.d### [at] internlnet> wrote:

>
>"Tim Attwood" <tim### [at] comcastnet> schreef in bericht 
>news:45046439$1@news.povray.org...
>>> Actually, while modeling it, it struck me that it was not obvious at all
>>> how this contruction could produce any sort of real catapult-movement.
>> The ropes around the pivot act as a torsional spring. The handles at
>> the back are to force the catch off the hook.
>>
>Yes, and for those who have seen Scrapheap on TV, know that it is not so 
>obvious to build a working one :-)
>
>Thomas 
>
You are right and I cannot imagine that throwing arm surviving the
sudden stop when it hits the massive top beam .

Not a practical design at all

John

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