RCCrawler Forums

davcom · 01-31-2007, 07:22 AM

i am just curious is all i like sooooooooooo many others am new to this and have a dominator . i was going to use parts from that to make a crawler,but i see everyone going with solid axle is it because the dogbones wont hold up to the torque. have more ? but just wanted to start with this for now . thank you for you time

Big Mike · 01-31-2007, 07:38 AM

Solid axles are the easiest to:
A- mechanically lock so power is transferred to both wheels full-time
B- incorporate into a chassis design, either stick or link
Don't get me wrong, lots of guys here have made capable crawlers from independant-suspension chassis, it just takes more work usually. One rig that stands out in my memory was a Revo that had essentially been hacked into 3 pieces. The front and rear ends were mated to a stick chassis w/ pivots in the center, and the A-arms were pinned in the full extended position so they could'nt move. The superior breakover ability of a stick chassis combined with the added ground clearance of the pinned A-arm axles vs. a straight solid axle.
Solid axles still have to transfer torque to the wheels via a shaft, like an independant design uses dogbones. Breakage issues are probably equal in either design. Apply more torque than they are designed to handle, and they'll break. You can get stronger aftermarket shafts for most solid axles nowadays, though.

davcom · 01-31-2007, 07:46 AM

ok thank you .. i will keep looking for parts and more parts then . just seems overwhelming to the novice . i guess. i started in nitro and have breathing problems from running the nitro. the fumes i can't take so going electric . this is a whole new ball game for me as i do not know much about them and the different components that will work together . again thank you for your time

TwistedCreations · 01-31-2007, 07:47 AM

solid axles put more force on the opposite axle. When one wheel goes up, it forces the other down. Also, it raises the diff up higher when articulating. Unlike IFS, the diff stays the same, lower or sometimes raise a little bit. So a solid axle allows for more clearance.

andrewmp6 · 01-31-2007, 08:03 AM

same reason most real off road trucks and crawlers use one

davcom · 02-04-2007, 09:19 AM

ok . thankyou now im getting the pic of how it all works .

Thorsteenster · 02-04-2007, 09:36 AM

indy or solid axles lock the same way, they both have the same diff components. its all about forced artic of the opposite wheel. you can make lock the indy into a high centered diff axle and have somthing decent for a solid axle rig.

toyofast · 02-04-2007, 10:03 AM

IFS/IRS has many moving parts to have to repair, fix or replace when damaged. Solid axle has fewer moving parts to worry about. That is one major thing to look at.

Another thing is that most solid axle rigs can be build to have a super low center of gravity. Building a IFS/IRS rig means that your weight is going to be higher and that weight will be moving around a lot more while crawling.

Old One · 02-08-2007, 10:53 PM

I think theres the cool factor w/solids to. They look more like the real deal,

FELIX · 02-15-2007, 12:44 PM

Quote:

Originally Posted by TwistedCreations

solid axles put more force on the opposite axle. When one wheel goes up, it forces the other down. Also, it raises the diff up higher when articulating. Unlike IFS, the diff stays the same, lower or sometimes raise a little bit. So a solid axle allows for more clearance.

What he said

That's why in the 1:1 world you don't see any IFS rock Crawlers.

Rob

jetboat · 02-16-2007, 10:51 AM

bite your tongue Felix, there are 1:1 IFS and IRS crawlers, and they can be made to crawl well, even win comps. I have been wanting to build an rc IFS/IRS rig for a while but like others have said its realy hard to get the same traction and low center of gravit that you get with solid.

RXcrawler · 02-16-2007, 11:17 PM

Because IFS/IRS SUCKS!!!

davcom · 02-23-2007, 08:27 PM

i had attempted to do this crawler with the parts i had from a nitro truck i wanted to use the diffs and hubs because i had rebuilt them and locked them . just figured if i had parts why not use them and then buy what ever else i would need like a frame ..... i had got a stamped electric truck used for the tranny and some of the electronics but only thing that was any good was the tranny and motor. .

now seeings with the two axles you guys suggest to use are gone to be no longer made what do you start with now . any idea's..

ON THE FARM · 02-23-2007, 09:55 PM

what nitro truck are you planning on useing the parts from?

davcom · 02-24-2007, 07:18 PM

the donator truck is a ofna dominator, it still runns but i have one other nirto mbx from ofna so i wanted to turn the dominator parts into a crawler and change to electric for power source. i have a stampede donor truck for parts also i just need to figure out how to make the parts work and what frame to start with.

01-31-2007, 07:22 AM	#1
davcom Newbie Join Date: Apr 2006 Location: Vestal Posts: 48	what is the reason for a solid axle i am just curious is all i like sooooooooooo many others am new to this and have a dominator . i was going to use parts from that to make a crawler,but i see everyone going with solid axle is it because the dogbones wont hold up to the torque. have more ? but just wanted to start with this for now . thank you for you time

01-31-2007, 07:38 AM	#2
Big Mike I wanna be Dave Join Date: Oct 2006 Location: Martinsburg WV Posts: 2,781	Solid axles are the easiest to: A- mechanically lock so power is transferred to both wheels full-time B- incorporate into a chassis design, either stick or link Don't get me wrong, lots of guys here have made capable crawlers from independant-suspension chassis, it just takes more work usually. One rig that stands out in my memory was a Revo that had essentially been hacked into 3 pieces. The front and rear ends were mated to a stick chassis w/ pivots in the center, and the A-arms were pinned in the full extended position so they could'nt move. The superior breakover ability of a stick chassis combined with the added ground clearance of the pinned A-arm axles vs. a straight solid axle. Solid axles still have to transfer torque to the wheels via a shaft, like an independant design uses dogbones. Breakage issues are probably equal in either design. Apply more torque than they are designed to handle, and they'll break. You can get stronger aftermarket shafts for most solid axles nowadays, though. Last edited by Big Mike; 01-31-2007 at 07:46 AM.

01-31-2007, 07:46 AM	#3
davcom Newbie Join Date: Apr 2006 Location: Vestal Posts: 48	ok thank you .. i will keep looking for parts and more parts then . just seems overwhelming to the novice . i guess. i started in nitro and have breathing problems from running the nitro. the fumes i can't take so going electric . this is a whole new ball game for me as i do not know much about them and the different components that will work together . again thank you for your time

01-31-2007, 07:47 AM	#4
TwistedCreations Colt Python/SR9c Join Date: Feb 2004 Location: out in the shop, reloading ammo! Posts: 8,626	solid axles put more force on the opposite axle. When one wheel goes up, it forces the other down. Also, it raises the diff up higher when articulating. Unlike IFS, the diff stays the same, lower or sometimes raise a little bit. So a solid axle allows for more clearance.

01-31-2007, 08:03 AM	#5
andrewmp6 Rock Crawler Join Date: Apr 2006 Location: louisville Posts: 814	same reason most real off road trucks and crawlers use one

02-04-2007, 09:19 AM	#6
davcom Newbie Join Date: Apr 2006 Location: Vestal Posts: 48	ok . thankyou now im getting the pic of how it all works .

02-04-2007, 09:36 AM	#7
Thorsteenster I wanna be Dave Join Date: May 2006 Location: Arlington, VA Posts: 3,377	indy or solid axles lock the same way, they both have the same diff components. its all about forced artic of the opposite wheel. you can make lock the indy into a high centered diff axle and have somthing decent for a solid axle rig.

02-04-2007, 10:03 AM	#8
toyofast I wanna be Dave Join Date: Feb 2004 Location: Columbia Gorge Posts: 5,512	IFS/IRS has many moving parts to have to repair, fix or replace when damaged. Solid axle has fewer moving parts to worry about. That is one major thing to look at. Another thing is that most solid axle rigs can be build to have a super low center of gravity. Building a IFS/IRS rig means that your weight is going to be higher and that weight will be moving around a lot more while crawling.

02-08-2007, 10:53 PM	#9
Old One Newbie Join Date: Feb 2007 Location: Tulsa Posts: 22	I think theres the cool factor w/solids to. They look more like the real deal,

02-16-2007, 10:51 AM	#11
jetboat I wanna be Dave Join Date: Dec 2005 Location: Tax Nation Posts: 2,289	bite your tongue Felix, there are 1:1 IFS and IRS crawlers, and they can be made to crawl well, even win comps. I have been wanting to build an rc IFS/IRS rig for a while but like others have said its realy hard to get the same traction and low center of gravit that you get with solid.

02-16-2007, 11:17 PM	#12
RXcrawler Moderator Join Date: Apr 2004 Location: In my head Posts: 2,744	Because IFS/IRS SUCKS!!!

02-23-2007, 08:27 PM	#13
davcom Newbie Join Date: Apr 2006 Location: Vestal Posts: 48	i had attempted to do this crawler with the parts i had from a nitro truck i wanted to use the diffs and hubs because i had rebuilt them and locked them . just figured if i had parts why not use them and then buy what ever else i would need like a frame ..... i had got a stamped electric truck used for the tranny and some of the electronics but only thing that was any good was the tranny and motor. . now seeings with the two axles you guys suggest to use are gone to be no longer made what do you start with now . any idea's..

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02-23-2007, 09:55 PM	#14
ON THE FARM Quarry Creeper Join Date: Aug 2006 Location: NORTH TEXAS Posts: 202	what nitro truck are you planning on useing the parts from?

02-24-2007, 07:18 PM	#15
davcom Newbie Join Date: Apr 2006 Location: Vestal Posts: 48	the donator truck is a ofna dominator, it still runns but i have one other nirto mbx from ofna so i wanted to turn the dominator parts into a crawler and change to electric for power source. i have a stampede donor truck for parts also i just need to figure out how to make the parts work and what frame to start with.

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