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75 roll cage
Posted: Fri May 27, 2005 7:03 pm
by zambon
I found a person to help me make a roll cage for my car. I am wondering if anybody has links to photos of existing cages already installed in cars?
*This does not mean that I will be taking my questionable lightened gearbox to track events*
Posted: Sat May 28, 2005 3:18 pm
by Luis
This is from a Spanish rally car, i´m going to ask him for some schematics, i´m going to start something like that in the summer.
http://www.aunaocio.com/zonaweb/jpaul
On the left menu select "álbum de fotos"
Posted: Mon May 30, 2005 12:13 am
by Maurizio
Posted: Mon May 30, 2005 12:35 am
by Mats
Whatever you do, look at the FIA rules for cages, DO NOT make a cage that can't be classified or you might regret it later.
Posted: Mon May 30, 2005 9:26 am
by Zamani
Zambon,
If you are racing in the US, then get the SCCA rule book. The rules should be applicable to all Alfa club racing events too.
Posted: Mon May 30, 2005 6:09 pm
by zambon
Thanks to everybody for their input. Those are some good links. People on this board are always sitting on top notch links
Please keep the responses coming
James
Posted: Mon May 30, 2005 11:43 pm
by Mats
I actually have a 3D CAD model of a 75 roll cage...
If you want, I can do some renderings for you, it's easy enough to add/remove tubes in the virtual world too.
I can even estimate weight.
Posted: Tue May 31, 2005 12:33 am
by Maurizio
Mats wrote:I actually have a 3D CAD model of a 75 roll cage...
in UG ??? , then me wants.... ( : drool emoticon : )
Posted: Tue May 31, 2005 12:44 am
by Dennis
Me too, Me too!
Posted: Tue May 31, 2005 12:49 am
by Jose_76
Mats, maybe it is in .dwg format? then I'd want it!!
Posted: Tue May 31, 2005 2:40 am
by Mats
Yes, UG.
.dwg is only 2D as far as I know, I could do a drawing but the cage is really only a "sketch NUFO" so it can't really be used for manufacturing. But if you want a sketch with approximate lengths that could be arranged.
I'll have a look and see how presentable it is before I post it.
Might snap some pics of the actual cage I tried to copy, that might be useful to explain it better.
Oh, I found some pics...
Posted: Tue May 31, 2005 3:05 am
by Jose_76
Oops! You're right Mats, dwg is for 2D. Anyway, could you send me the Cad file? ;D
Posted: Tue May 31, 2005 3:07 am
by Maurizio
Looks great, as a base to start from
(next winter ......)
So a UG file would be great
Posted: Tue May 31, 2005 4:58 am
by Mats
I'll complete the cage and then make some prt/igs/step files for you, ok?
Just don't expect me to have it done by tomorrow...
Maurizio: This is from when I was still building on the 75 body (that is now just standing around) It's really only a min-spec cage (not even that since the back half is still not done) that I threw together from measurements from a friends 75 cage.
I did it for a stiffness study; "What happens if I add a tube here" type of thing so the measurements aren't really spot on but rather coarse since I really only want to see better/worse kinda results and weight approximation.
Posted: Tue May 31, 2005 5:23 am
by Maurizio
@mats, the parts wich are not designed yet, are the parts I want to really play around with.
For the back and the front (from the bulkhead) I have some ideas going through my head.
And since your start is parametric I can alter to verified dimensions.
So I'm not blaming you when the pipes don't fit
I have a tube bender laying around. If I get the time....