Basic demensions of Max IV roll cage...

[Rusty-Gunn]

Hi. I would like to learn the basic demensions of the Max IV roll cage. Width, height and length.
I think schedule 40 might be okay to use? Black iron pipe? Other suggestions?
Thanks.

[thebuggyman1]

D.O.M. tubing will always be stronger than pipe. The wall thickness on pipe will be around .120" and is not precise. I used .095 DOM tubing for this one [IMG][/IMG]

And I used .083 DOM for the Attex [IMG][/IMG]

If you go too thin on the wall, it can dent and lose it's strength, Too thick and it weighs too much.
The larger the spans, the stronger the tube should be ( bigger dia.,thicker wall).
Diagonal bracing adds ALOT of strength, but can also be in the way for maint. etc.

[Rusty-Gunn]

Thank you for the info. My nephew said today he will help me weld up a proper
rol cage this summer. He has his welding equipment in storage.
BTW Akranger72 (Eric) sold me his Max IV. I will post about it soon..

[jpswift1]

Thank you for the info. My nephew said today he will help me weld up a proper
rol cage this summer. He has his welding equipment in storage.
BTW Akranger72 (Eric) sold me his Max IV. I will post about it soon..

Schedule 40 is what the factory Recreatives cage is and it holds up fine in a rollover. I've seen it in action.

[Rusty-Gunn]

Otay. 40 it is. What I need is basic demensions like hoe high the uprights go.
How wide at the top. How long front to back. This sort of thing. I want to make
a roll cage simular to the factory cage. Thanks.

[phabib]

I'm keeping an eye on this topic because I want to build one too.

[thebuggyman1]

In my opinion, the factory cage is not tall enough to protect an adult male in the rear seat.....probably meant for kids.

[whistlepig1]

You could probably find a good picture in the gallery and just scale the figures you need since you know the length and width of your machine already. I would recommend using at least .120 walled tubing with a full body band for a base.
Although you could get away with using pipe. What type of bender do you have. Dies for pipe are different than tubing dies.

[thebuggyman1]

Rusty, nobody is jumping in here with measurements because it's just not that simple. The bends are less than 90 degrees (more like 80) so there is no way to measure the top.
We could give you a height, but like I stated before, it's not high enough in the rear anyway. You could do better with your own design.
Here's a pretty decent picture from the gallery.
[IMG][/IMG]

[Rusty-Gunn]

Thanks fdor the responces. A new friend who bought our Avenger this past summer
says he has pipe bender stuff, and my nephew Adam is a welder (but his equipment is put away).
Given this, I figure it won't be too differcult to make a roll cage. Copy the pics is a good
idea. The height can be modified to protect tall people I suppose. I'm 5'3" the wife and inch more
and the kids several more. Easy enough.

[wed4life]

Someone on this board sent the specs to me a few years back. I will see if I can find them and post.
At work right now.
David

[Dozerlarry]

Hey Buggyman-thanks for using mine as an example! Rusty I'll be messing with mine tomorrow so I'll make some measurements and post them for you. I'm thinking like Buggyman though, they'll only be useful as a guide to get you started. I'd actually build one a little different if I didn't have one already installed. I'm 5'10" and this one works for me.

[Rusty-Gunn]

Thanks. I'm open to any suggestions.

[Dozerlarry]

OK Rusty here goes, hopefully this won't be too confusing to you but with the pic Buggyman posted I think you'll get the idea. First off, the OD of my structure was 1 5/8 inches. I'm going to call the front and rear bars loops and the inner bars connectors. The whole roll cage was held to the tub by a smaller tube welded to the angle bolted to the tub and secured with 2 bolts at each joint. The inner connectors were connected to the front and rear loops in the same fashion. The angle bolted to the tub was 2x2x1/8 inches. As near as I can tell it looks like all bends are on a 6" radius. The distance from the center of the front loop to the center of the rear loop where they bolt to the tub angle is 56 1/4 inches. The front loop from the tub angle to the beginning of the corner bend is 31 1/2 inches. The back loop from the tub angle to the beginning of the corner bend is 35 1/2 inches. There is 27" between the rollouts of the top bends on the front and rear loops. In other words, the top width. The front loop is vertical. The rear loop is angled towards the front of the Max app. 27 degrees.
All 4 sides of the cage are angled inward app. 25 degrees. The top of the front loop is 37 1/2 inches above the tub mounting angle. The top of the rear loop is 42 1/2 inches above the tub mounting angle. The distance from the center of the front loop to the center of the rear loop is 44 3/4 inches. The connecting bars have about an 1 1/2 upward bend about 20 1/2 inches back from the center of the front loop.
Now for the disclaimer.............I measured all this as accurately as I could, it may or may not measure out like this on yours. I also don't know if this is even a factory cage so use caution and if I can help you any further just shoot me a line. I also mentioned earlier I'd change this if I built it. I'd make the rear loop vertical where I could hang a cargo box on it easier. Probably wouldn't look as good though. Good luck with it!

[Rusty-Gunn]

Thank you for the info. It will be a big help to get things near what the roll cage
looks like.