RCCrawler Forums

monsterjeepn · 12-01-2005, 08:52 PM

Quote:

Originally Posted by chafey

air compresses, hydraulics dont

well guys this is the problem here... if you get too much torque on the cylinders, they will just be forced to move... however with the two way VARIABLE valve that JIA found, you could minimize this affect... and the more pressure u can force into those cylinders, the more resistant it would be to being forced... im very interested to see if you could actually make this work (not that i would do it myself, i jus wanna see if it can be done well). keep this one updated

JakeTheAlligatorMan · 12-01-2005, 08:53 PM

Maybe you could gut one of these baby's?

monsterjeepn · 12-01-2005, 09:02 PM

Quote:

Originally Posted by JakeTheAlligatorMan

Maybe you could gut one of these baby's?

LOL those things are great but they run out fairly quick... ive never checked how much pressure they hold, but im sure it cant be too much... plus they are fairly bulky...

Well i went and read up on those variable SPEED valves... all it says it variable SPEED ... it doesnt say anything about stopping the cylinder in any position u want... so i dont know if this would be an equivilent to proportional steering....

AdamF · 12-01-2005, 09:14 PM

Whats the point in all this if you have to run a HUGE tank in order to run it for more than a few turns?

A show truck I guess?

wheeler · 12-01-2005, 10:41 PM

you could try using a CO2 tank from a paintball gun those last for a while, but you'd have to find one small enough.

slugzracing · 12-01-2005, 11:30 PM

Quote:

Originally Posted by microgoat

Why didn't i think of this earlier? Not only does it eliminate the bulky air tank, but it's smaller, lighter, and easy to carry a plentiful supply of air on board. A much better solution than the onboard compressor, and overall much cooler, too.

Use .22 blanks, the kind used in nail guns. Load 'em up on a belt-fed system. The only downside is you'd have to pick 'em all up after every run.

And if you run a Chevrolet body on it you get the added realism of backfires!

bill_jr · 12-01-2005, 11:34 PM

Why not just run 100 feet of 3/8 air hose to a 80 gallon 3 phase rotary compressor? I guarantee you won't run out of air then. The hose hanging out the back may cause truck to flip over though.

Slowpony · 12-02-2005, 07:55 AM

This is an interesting thread, but is your goal functional steering or the WOW factor? I've been looking for a worm drive servo to use on my crawler. No it's not fast but neither is my crawler. But it would turn any size of tire. Anyone seen a worn drive servo in a reasonable size?

Oh, sorry for the hi-jack.
'Pony

shortbusjeep · 12-02-2005, 10:03 AM

Quote:

Originally Posted by syco133

Hope to not hijack here but can these cylinders be used as air shocks or like nitrogen shocks on a real buggy for adjusability so you could lower or raise the suspension at will I know it can be done I was just wondering if these cylinders will work.

what type of cylenders would you need then? to get droop and compression with it? thanks

87JeepWrangler · 12-02-2005, 01:27 PM

i saw CO2 cylinders suggested twice. whats the verdict on those? i know my my 20 lb CO2 tank on my 1:1 crawler lasts FOREVER, and i fill 38" tires almost every trip out.

monsterjeepn · 12-02-2005, 05:38 PM

Quote:

Originally Posted by 87JeepWrangler

i saw CO2 cylinders suggested twice. whats the verdict on those?

Whats my verdict on these??? hmmm i dont think you could get one light enuff to even consider using on an RC crawler... the lightest CO2 tank ive come across was still like 5 pounds... maybe you could jus integrate the "tank" into something already on the crawler? like use the tube frame, like seal it and use that... or maybe u could make a special frame out of something a lil bigger... iunno jus thinkin out loud...

wheeler · 12-02-2005, 05:52 PM

i found a CO2 tank for a paintball gun in both 9oz and 14oz, they don't seem that big and atleast 400shots so it should last for a little while at least

monsterjeepn · 12-04-2005, 06:25 PM

Quote:

Originally Posted by wheeler

i found a CO2 tank for a paintball gun in both 9oz and 14oz, they don't seem that big and atleast 400shots so it should last for a little while at least

well yeah they would last a long *** time, the only thing is that they are so damn heavy its just unreasonable

. i mean heck, if u want a really heavy, high CG crawler then go for it

... lol my point is, you just cant get a CO2 tank light enuff to even consider for a setup like this

ILoveRCRockCrawlin · 12-04-2005, 06:38 PM

actually the air tanks for the planes, which im using, is the same size as the smaller size tanks for paintball guns. 100psi tho.

shortbusjeep · 12-04-2005, 06:46 PM

have you ever seen pneumatic landing gear work, the ones ive seen are like bam, all the way out and quick. not really what you would want as a steering.

ILoveRCRockCrawlin · 12-04-2005, 06:47 PM

you can control the speed

monsterjeepn · 12-04-2005, 06:51 PM

Quote:

Originally Posted by ILoveRCRockCrawlin

you can control the speed

with what? r u talkin bout the variable control valves? cuz if u are, those are adjusted by a knob that has to be twisted by hand... and that still doesnt mean its goin to be proportional, that jus means it will take longer to go from stop to stop

ILoveRCRockCrawlin · 12-04-2005, 06:55 PM

yes i know. i have all the stuff except for the right size piston and ive been screwing around with it.

JasonInAugusta · 12-04-2005, 07:05 PM

Regardless, the tanks don't have a large enough volume of air to run the system for any length of time.

ILoveRCRockCrawlin · 12-04-2005, 07:14 PM

fine screw it i wont do it then. why do i even bother sharing ideas with all of you.

12-01-2005, 08:53 PM	#42
JakeTheAlligatorMan Rock Crawler Join Date: Jan 2005 Location: and OR. if . . . . Gone Fishin :p :b :p Posts: 501	Maybe you could gut one of these baby's?

12-01-2005, 09:14 PM	#44
AdamF RCC Addict Join Date: Apr 2004 Location: Cincinnati Ohio Posts: 1,673	Whats the point in all this if you have to run a HUGE tank in order to run it for more than a few turns? A show truck I guess?

12-01-2005, 10:41 PM	#45
wheeler Pebble Pounder Join Date: Apr 2004 Location: Calgary Canada Posts: 138	you could try using a CO2 tank from a paintball gun those last for a while, but you'd have to find one small enough.

12-01-2005, 11:34 PM	#47
bill_jr Newbie Join Date: Jan 2005 Location: Up my fiances' butt Posts: 26	Why not just run 100 feet of 3/8 air hose to a 80 gallon 3 phase rotary compressor? I guarantee you won't run out of air then. The hose hanging out the back may cause truck to flip over though.

12-02-2005, 07:55 AM	#48
Slowpony Pebble Pounder Join Date: Feb 2004 Location: Born in a crossfire hurricane Posts: 102	This is an interesting thread, but is your goal functional steering or the WOW factor? I've been looking for a worm drive servo to use on my crawler. No it's not fast but neither is my crawler. But it would turn any size of tire. Anyone seen a worn drive servo in a reasonable size? Oh, sorry for the hi-jack. 'Pony

12-02-2005, 01:27 PM	#50
87JeepWrangler Rock Stacker Join Date: Dec 2004 Posts: 54	i saw CO2 cylinders suggested twice. whats the verdict on those? i know my my 20 lb CO2 tank on my 1:1 crawler lasts FOREVER, and i fill 38" tires almost every trip out.

12-02-2005, 05:52 PM	#52
wheeler Pebble Pounder Join Date: Apr 2004 Location: Calgary Canada Posts: 138	i found a CO2 tank for a paintball gun in both 9oz and 14oz, they don't seem that big and atleast 400shots so it should last for a little while at least

12-04-2005, 06:38 PM	#54
ILoveRCRockCrawlin RCC Addict Join Date: Dec 2004 Location: Central NY Posts: 1,980	actually the air tanks for the planes, which im using, is the same size as the smaller size tanks for paintball guns. 100psi tho.

12-04-2005, 06:46 PM	#55
shortbusjeep Quarry Creeper Join Date: Feb 2005 Location: Yuma Posts: 285	have you ever seen pneumatic landing gear work, the ones ive seen are like bam, all the way out and quick. not really what you would want as a steering.

12-04-2005, 06:47 PM	#56
ILoveRCRockCrawlin RCC Addict Join Date: Dec 2004 Location: Central NY Posts: 1,980	you can control the speed

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12-04-2005, 06:55 PM	#58
ILoveRCRockCrawlin RCC Addict Join Date: Dec 2004 Location: Central NY Posts: 1,980	yes i know. i have all the stuff except for the right size piston and ive been screwing around with it.

12-04-2005, 07:05 PM	#59
JasonInAugusta 06 Super National Champ Join Date: Jun 2004 Location: Stark Industries Bar and Grill Posts: 11,361	Regardless, the tanks don't have a large enough volume of air to run the system for any length of time.

12-04-2005, 07:14 PM	#60
ILoveRCRockCrawlin RCC Addict Join Date: Dec 2004 Location: Central NY Posts: 1,980	fine screw it i wont do it then. why do i even bother sharing ideas with all of you.

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