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Internal Cage
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Author:  worldo [ Tue Aug 30, 2011 7:23 am ]
Post subject:  Internal Cage

hey quick question and yeah i searched first.

is 1 1/4 tube to small to build an internal cage out of?

i dont plan on doing anything stupid to use it but will be mounting uhf & rear speakers on.

the pipe bender i borrowed of bogga only goes to 1 1/4 thats why i would like to use this size.

cheers ricky

Author:  Fatzook [ Tue Aug 30, 2011 7:40 am ]
Post subject:  Re: Internal Cage

Yes. Too small. MOst commonly used is 1.75" or 32NB. CAMS, ANDRA, CCDA etc allow a few different sized tubes to be used, but it would be a very minimal part of the cage that is allowed to use 1.25" tube. All main sections of the cage will be 1.75" or larger.

Having said that, I have seen a few cages with 32NB B-pillar and rear section, and 25NB (1.25") front section to aid with clearance around the dash etc.

Author:  Zook_Fan [ Tue Aug 30, 2011 8:06 am ]
Post subject:  Re: Internal Cage

Buy a good 1 3/4 die for it and make it all out of that if you only want to use one size. Better off with overkill than under when it comes to safety

Author:  worldo [ Tue Aug 30, 2011 8:23 am ]
Post subject:  Re: Internal Cage

So if I use the 1 1/4 beside dash then notch it at top and use 1 3/4 for the rest.

Author:  Zook_Fan [ Tue Aug 30, 2011 8:28 am ]
Post subject:  Re: Internal Cage

Personally I'd use 1 3/4 for all of it and bigger for the main hoop but if you have to choose just one for everything in the bigger sizes go 1 3/4. It fits down between the dash and the door, just dints the door a little bit and it is tight to close the first few times. You get use to it quick.

Author:  Fatzook [ Tue Aug 30, 2011 10:23 am ]
Post subject:  Re: Internal Cage

^^^^ I agree.

Author:  royce [ Tue Aug 30, 2011 10:32 am ]
Post subject:  Re: Internal Cage

Are you sure its a 1.25" tube die or an 1.25" pipe die?

if its a pipe die the OD of the stuff is really 42.4mm

Author:  Fatzook [ Tue Aug 30, 2011 11:02 am ]
Post subject:  Re: Internal Cage

royce wrote:
Are you sure its a 1.25" tube die or an 1.25" pipe die?

if its a pipe die the OD of the stuff is really 42.4mm


Are you suggesting he has a 32NB die? I wasn't aware that the DIES were sized by internal bore ( as pipe is) :?

Author:  worldo [ Tue Aug 30, 2011 11:09 am ]
Post subject:  Re: Internal Cage

Just checked bendsr its a plumbers mate bender for bending gas steam and plumbing pipes. And the only number on it are 1/2 up to 1 1/4 I think bit dark out there

Does this help?

Author:  Fatzook [ Tue Aug 30, 2011 11:12 am ]
Post subject:  Re: Internal Cage

worldo wrote:
Just checked bendsr its a plumbers mate bender for bending gas steam and plumbing pipes. And the only number on it are 1/2 up to 1 1/4 I think bit dark out there

Does this help?


For bending water pipe then. Can you measure across the opening of the die and get a rough size?

Author:  worldo [ Tue Aug 30, 2011 11:19 am ]
Post subject:  Re: Internal Cage

inside lip to inside lip is bout 42mm on the biggest one. Still dont know what this all means im going to use 1 3/4 tube for the cage.

Author:  Fatzook [ Tue Aug 30, 2011 11:20 am ]
Post subject:  Re: Internal Cage

worldo wrote:
inside lip to inside lip is bout 42mm on the biggest one. Still dont know what this all means im going to use 1 3/4 tube for the cage.


It is as Royce said then. Thats roughly 1.75" OD. So use that die. But you will need to buy pipe, not tube!

Author:  worldo [ Tue Aug 30, 2011 11:21 am ]
Post subject:  Re: Internal Cage

Ok sweet thanks heaps.

Author:  royce [ Wed Aug 31, 2011 4:22 am ]
Post subject:  Re: Internal Cage

Fatzook wrote:
royce wrote:
Are you sure its a 1.25" tube die or an 1.25" pipe die?

if its a pipe die the OD of the stuff is really 42.4mm


Are you suggesting he has a 32NB die? I wasn't aware that the DIES were sized by internal bore ( as pipe is) :?


Dies are marked to suit the material, so a die for 1 1/4" / 32nb pipe will say that rather than 42.4mm OD which will confuse all the meathead waterpipe fitters around :)

Worldo like Fatty said, make sure you have pipe not tube as the fit in the die is critical, might I suggest you go to a Metaland and ask for OZTUBE (confusing I know) Circular Hollow Section in 32nb Medium wall. This will get you an Australian product designed for structural applications and not too dear

Author:  Fatzook [ Wed Aug 31, 2011 4:35 am ]
Post subject:  Re: Internal Cage

royce wrote:
might I suggest you go to a Metaland and ask for OZTUBE (confusing I know) Circular Hollow Section in 32nb Medium wall. This will get you an Australian product designed for structural applications and not too dear


X2. Really nice product. I use this to make my 80 series tube sliders. It bends very nicely :wink:

Author:  tanshi [ Wed Aug 31, 2011 4:37 am ]
Post subject:  Re: Internal Cage

yep, we used it for Dads 6 point a month or two ago.

much nicer than so other black steel we used previously

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