: A different kind of cage design question
bigdude 07-10-2002, 10:03 AM I'm bored and this pic Tex posted got me thinking (on top of too many episodes of Robot Wars :D). Rollovers becoming commonplace in competition so.....
Has anyone give thought to cage designs that are also desgned for self righting, or promoting the roll to continue past the cage and to the rubber side again? Could be dangerous to encourage a roll to continue but designing a less boxy cage would also make it a lot easier to right an overturned vehicle (possibly be just the two team members). Anyway here's that pic
http://gumbo4x4.com/MNT147.JPG
rodzzilla 07-10-2002, 10:29 AM How about building a sphere?:D That way it rights itself. Wheeling a hampster ball. Just kidding. It is a good thought.
Cliffy [JD] 07-10-2002, 10:29 AM A while back people were talking about fear of rocks or stumps or whatever protruding INTO the cage and injuring the driver.
That's would be my concern with the above cage design being using in Rockcrawling or any variation of this sport. .02:beer:
Good question..............
It's good that your trying to think outside the box:D
Doesn't the single seat buggies come as near to this idea as you could come? Light weight and small one man cage?
(like the toyfamily buggy)*looking for pic*
sceep 07-10-2002, 10:35 AM when i built my cage i did exactly that... the 2 middle spreader bars are 5" taller in the front than the outter 2. Seeing how my jeep rolls on 90% the front hoop/hood i left the stock hoop at factory height, then lowered my front hoop by 5", my middle spreaders run horizontially from the back hoop then bend down to be able to tie into the front. It works great to help it not stay on its lid, lets the roll continue onto its side.
Not the best pic, but the only one i have.
bigdude 07-10-2002, 10:54 AM Originally posted by rodzzilla
How about building a sphere?:D
It is a funny thought but imagine if the hoops we see used long radius elbows instead of short radius. Might be a heck of a lot more fabrication. However, when a roll-over cost you 40 points if you can't get it righted, and if you can you finish the course, the difference could be worth it.
take that pic of Toyfamily's buggy and draw a half circle with the diameter being the outside wheel measurements. the take the overhead hoops and match that arc (even just partially like sceep has done) Would make it a hell of alot easier to roll to the wheels vs. having to goe past some boxy corners.
Somebody photo chop something like that on some rigs :D
Originally posted by bigdude
Somebody photo chop something like that on some rigs :D
Are you suggesting anything similar to this?
Originally posted by bigdude
Somebody photo chop something like that on some rigs :D
Is this what your talking about?
I think the problem with DRM's design would be that the lower portion of the cage would hang up on obstacles. What about a cage that was kind of mushroom-shaped. Imagine it being narrow at the bottom, and wider at the top, with rounded top hoops. Hmmm.....
TEX
bigdude 07-10-2002, 11:24 AM No not a hampster ball :laughing:
Basically just arched crossmembers in the roof area and lowered corners on the cage. Would provide less sharp angles to overcome when flopping, thes less chaces for the vehicle to stop until a tire hit. It would also allow for a good amount of rocking momentum to be achieved when getting ready to try to get it back over on it's wheels.
bigdude 07-10-2002, 11:25 AM Originally posted by TEX
I think the problem with DRM's design would be that the lower portion of the cage would hang up on obstacles. What about a cage that was kind of mushroom-shaped. Imagine it being narrow at the bottom, and wider at the top, with rounded top hoops. Hmmm.....
TEX
Kind of what I'm getting at. Rounded top hoops and lower corners so the don't catch the ground and stop momentum.
gunracer1 07-10-2002, 11:28 AM i have a inline seating buggy we are builing up that i thought real hard about a self righting mec. the best idea i came up with is a 2' to 3' stroke air ram. use your co2 tank and hit it with 300 to 400# psi hell that would throw it right over. cheap, not to heavy and i have the rams now. since pro rocks wont let your spotter touch the rig with out penalty, it seemed like a good idea. use a 2' ram with a swivel mount that would work on either side. pin it in and hit the solinoid from the co2. it would be fun to play with, maybe not very practical. but stilll kind of fun. mike
Only problem with that ram idea is it would take all of about one use of it for it to be outlawed in competition :D
TEX
bigdude 07-10-2002, 11:36 AM Originally posted by gunracer1
i have a inline seating buggy we are builing up that i thought real hard about a self righting mec. the best idea i came up with is a 2' to 3' stroke air ram. use your co2 tank and hit it with 300 to 400# psi hell that would throw it right over. cheap, not to heavy and i have the rams now. since pro rocks wont let your spotter touch the rig with out penalty, it seemed like a good idea. use a 2' ram with a swivel mount that would work on either side. pin it in and hit the solinoid from the co2. it would be fun to play with, maybe not very practical. but stilll kind of fun. mike
You watch Robot Wars too huh :D
Stuff like this is bound to pop up eventually. It will no doubt help you in competition. I mean you've got the rams, borrow somebody's power tank, weld up a bracket ur two and give it a shot. Would be a heck of a lot easier than spinning tires on your side hoping they catch and flip you up. Also better than pointing out. Spotter could anchor you from a strap keeping it from going to far.
If you've already got the cylinder then you owe it to the PBB to be the first guy to try it. Damn that would be sweet. Combine that with a rounded top so you always end up on your side (never your lid) you'd be set.
bigdude 07-10-2002, 11:38 AM Originally posted by TEX
Only problem with that ram idea is it would take all of about one use of it for it to be outlawed in competition :D
TEX
Why is that? No one touching the vehicle, no spinning tires? I don't get it.
Doesn't seem much more nuts than doing a side burnout to right yourself and whipping the vehicle around all crazy (which I love along with everybody else, also perfectly legal)
badassjeepguy 07-10-2002, 11:41 AM hahahaha, this has crossed my mind...... basically build a cage like the shell of a vw beetle.......... someday i just may do this... if not for nothin else but fun... :D
Originally posted by bigdude
Why is that? No one touching the vehicle, no spinning tires? I don't get it.
Doesn't seem much more nuts than doing a side burnout to right yourself and whipping the vehicle around all crazy (which I love along with everybody else, also perfectly legal)
Not really a safety issue, more like the rear-steer thing is what I'm thinking. Just the nature of competition, if you try something really wacky, and it works, people will bitch & the officials will look cross-eyed at ya ;)
TEX
bigdude 07-10-2002, 11:44 AM Originally posted by badassjeepguy
basically build a cage like the shell of a vw beetle
Similar to what I was getting at. good example there BAJG
badassjeepguy 07-10-2002, 11:46 AM Originally posted by bigdude
Similar to what I was getting at. good example there BAJG
at least im good for something :D :flipoff2:
badassjeepguy 07-10-2002, 11:48 AM not only would it be easier to right....... there may be actually less impact on a roll due to less resistance in the roll, therefore mybe less damage and less injury?
bigdude 07-10-2002, 11:48 AM Originally posted by TEX
more like the rear-steer thing is what I'm thinking. Just the nature of competition, if you try something really wacky, and it works, people will bitch & the officials will look cross-eyed at ya ;)
TEX
Sounds like it would fit the unlimited class though. Just like forced articulation and rear steer.
Shit factor forced articulation into this also. Push the bitch over on its rounded cage :D Pull in the wheels closest to the ground with the forced articulation. Fire up the Cylinder..... POW Get you sh!t straight and finish the course.
Even add a little wheel to the end of the cylinder piston so you can leave it extended and drive along like training wheels :D
Somebody sponsor me on this build-up already :flipoff2:
bigdude 07-10-2002, 11:53 AM Originally posted by badassjeepguy
not only would it be easier to right....... there may be actually less impact on a roll due to less resistance in the roll, therefore mybe less damage and less injury?
I agree there also. The cage slamming the ground usually does cause an abrupt end to a roll. If it could keep going until it hits rubber it may be a lighter impact. In a roll where the vehicle is going to be going over multiple times I definitely think the cage damage would be lessened. Also the tendency to let the roll continue would really not factor into these cases because if the vehicle wants to go over multiple times, it will no matter what the cage design.
badassjeepguy 07-10-2002, 11:54 AM lol ive also thought of that....... actually build out riggers with wheels..... if you go to or do flop just hit that outrigger and keep on goin.... :D
nobody20 07-10-2002, 11:58 AM Sceep, what are you using for netting?
Welby 07-10-2002, 11:58 AM Originally posted by bigdude
Also the tendency to let the roll continue would really not factor into these cases because if the vehicle wants to go over multiple times, it will no matter what the cage design.
Yeah but any chance of the cage helping to slow down the roll would be gone, so instead of 2 or 3 rolls, it'll keep picking up speed and you'll have 20 :D Wheeeeeeeeeeeeeeeeee !!!!
bigdude 07-10-2002, 12:05 PM Originally posted by Welby
Yeah but any chance of the cage helping to slow down the roll would be gone, so instead of 2 or 3 rolls, it'll keep picking up speed and you'll have 20 :D Wheeeeeeeeeeeeeeeeee !!!!
I haven't seen many competition areas where more than 2-3 rolls won't get you to a flat area that momentum is dispersed upon. You will also still have the flat plane between the wheels to "slow down" the roll.
Don't you have some Armor-All to spray or something bolt-on man:flipoff2:
Welby 07-10-2002, 12:16 PM Originally posted by bigdude
I haven't seen many competition areas where more than 2-3 rolls won't get you to a flat area that momentum is dispersed upon.
I thought about that after I posted :shrug:
BTW :flipoff2: :flipoff2:
badassjeepguy 07-10-2002, 12:16 PM Originally posted by bigdude
Don't you have some Armor-All to spray or something bolt-on man:flipoff2:
daaayummmm SMACK............. :flipoff2:
StinkBug 07-10-2002, 12:28 PM Originally posted by badassjeepguy
hahahaha, this has crossed my mind...... basically build a cage like the shell of a vw beetle.......... someday i just may do this... if not for nothin else but fun... :D
Hmmmmm I like this idea. I been wanting to build a light, single seat comp type buggy, and my girl has been wanting a 4x4 bug. Maybe i'll just find a place to roll some tube to get the line of the roof right. then build the buggy and bolt some cut up bug panels on it. Hell yeah.
Dallas
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