Roll Cage
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From: Daryl Walford on 3 Sep 2008 02:57 Atheist Chaplain wrote: > "Ted" <Tedb(a)aol.com> wrote in message > news:48be1e4c$0$63365$c30e37c6(a)lon-reader.news.telstra.net... >> "Casper" <casper(a)home.capalaba.qld.au> wrote in message >> news:48be0be3$0$31800$afc38c87(a)news.optusnet.com.au... >>> "Ted" <Tedb(a)aol.com> wrote in message >>> news:48be04ad$0$63371$c30e37c6(a)lon-reader.news.telstra.net... >>>> Has anyone made ther own chassis/roll cage? any advice or tips? >>>> I can tig weld, but dont have a bender or notcher yet. >>>> >>> I don't mean to be a party pooper - but you know it's not legal to make >>> your own? >>> >> It's for off road use >> > > all the more reason to get a professional to do it. > In all honesty its easy to bend a bit of steel and weld it up so that it > looks pretty, its entirely another to make a strong roll cage, there are > bits in a GOOD roll cage that are under a great deal of tension, and others > that are under compression, and picking the right metals to use in what part > is a science in itself. > AFAIK the specs for the correct material can be found on the CAMS web site or in the CAMS manual. I know plenty of people who have built their own roll cages and had them approved by CAMS, there shouldn't be a problem doing it yourself if you use the correct materials and design. Daryl
From: Scotty on 3 Sep 2008 03:11 "Ted" <Tedb(a)aol.com> wrote in message news:48be04ad$0$63371$c30e37c6(a)lon-reader.news.telstra.net... : Has anyone made ther own chassis/roll cage? any advice or tips? : I can tig weld, but dont have a bender or notcher yet. : : Ive had a couple made for me and I have seen first hand the results of a professionaly made cage and a home made cage. Id take the Professionally made one anyday, the home job that I saw gave way when the car rolled, should there have been a passenger sitting oppisite the driver then they would be dead, the cage gave way and the side intrusion bar weld didnt hold and speared through the passenger seat. This was in a Datto Ute. The car was a mess and the driver was bloody lucky to be alive thats for sure. Dont risk it unless your design is good and your a very good welder. Up to you but Id happily ride in most cars with a Homologated cage in it.
From: sgam on 3 Sep 2008 03:29 On Sep 3, 1:29 pm, "Ted" <T...(a)aol.com> wrote: > Has anyone made ther own chassis/roll cage? any advice or tips? > I can tig weld, but dont have a bender or notcher yet. Follow the other guys advice (esp. Athol) on this - one thing I'll add, however, is depending on what you're intending to do with the car, just be sure that the regulations for your intended race class allow the cage to be extended to the suspension mounts, or not, and how far etc. A bit of research could save a lot of headache! Cheers, Steve (an extra brace diagonally across the bottom of the shell (perhaps incorporating tailshaft loop?) could radically increase rigidity)
From: Knobdoodle on 3 Sep 2008 09:05 "Casper" <casper(a)home.capalaba.qld.au> wrote in message news:48be0be3$0$31800$afc38c87(a)news.optusnet.com.au... > > "Ted" <Tedb(a)aol.com> wrote in message > news:48be04ad$0$63371$c30e37c6(a)lon-reader.news.telstra.net... >> Has anyone made ther own chassis/roll cage? any advice or tips? >> I can tig weld, but dont have a bender or notcher yet. >> > > I don't mean to be a party pooper - but you know it's not legal to make > your own? There's a law about whether you can have a few bits of pipe in your car?!!? -- Knob
From: RainbowWarrior on 3 Sep 2008 12:39 "Atheist Chaplain" <abused(a)cia.gov> wrote in message news:g9l7l1$f53$1(a)aioe.org... > "Ted" <Tedb(a)aol.com> wrote in message > news:48be1e4c$0$63365$c30e37c6(a)lon-reader.news.telstra.net... >> >> "Casper" <casper(a)home.capalaba.qld.au> wrote in message >> news:48be0be3$0$31800$afc38c87(a)news.optusnet.com.au... >>> >>> "Ted" <Tedb(a)aol.com> wrote in message >>> news:48be04ad$0$63371$c30e37c6(a)lon-reader.news.telstra.net... >>>> Has anyone made ther own chassis/roll cage? any advice or tips? >>>> I can tig weld, but dont have a bender or notcher yet. >>> >>> I don't mean to be a party pooper - but you know it's not legal to make >>> your own? >> >> It's for off road use > > all the more reason to get a professional to do it. > In all honesty its easy to bend a bit of steel and weld it up so that it > looks pretty, its entirely another to make a strong roll cage, there are > bits in a GOOD roll cage that are under a great deal of tension, and > others that are under compression, and picking the right metals to use in > what part is a science in itself. Depends, without denying a properly engineered cage is a good thing, a lot of offroad use rollcages are for lowspeed fallover / rollovers not 200kph, a "heavy duty external roofrack" can do the trick nicely for many if built by someone with decent mechanical knowledge.
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