crawler done the urban way - Pirate4x4.Com : 4x4 and Off-Road Forum

urbanmuddboger · 01-07-2009, 09:54 PM

well mabye not "badass" but it crawls like no other crawler i have owned(this is the first)

specs
axial ax-10
novak 55t
novak crawler ESC
axial ar-1 reciver
axial servo
aluminum stnc skid plate
bent links all around
mirroed tranny
weighted wheels 7 oz each in the front and 4 in back plus super sweet BL rings
home built link plates for ESC and reciver
and a secret weapon

urbanmuddboger · 01-07-2009, 09:58 PM

you can see the secret weapon in this pic its a pen tube slid over the steering links to act as a roller

Grind · 01-08-2009, 08:08 AM

Do you have stiffer coils on one side of the chassis? it looks like there coil'd tighter on the passenger side. Torque twist elimination?

urbanmuddboger · 01-08-2009, 10:22 AM

it is the same stifness i just cut the coil and streched it out for tourqe lean

it works alright
but i think the mirrored tranny helps the most

BIGJOEDUCKSLAYER · 01-08-2009, 10:29 AM

A little tuning and you would have a great crawler. Any reason your front shocks are on upside down?

urbanmuddboger · 01-08-2009, 04:13 PM

to put the weight of the oil at the lowest point?

idk i thought they looked mo betta this way

Grind · 01-08-2009, 10:42 PM

Mirrored tranny? is that another term for flipped or something?

urbanmuddboger · 01-09-2009, 12:38 AM

yes its fliped (motor on the other side )
but the gears are still in the back
you have to pull the tranny apart and switch the in put shaft (were the spur gear goes)
its pretty stright forward

Grind · 01-09-2009, 08:01 AM

That's cool, never heard of that being done before. I have an R2 dig trans though. Don't think that would work right. Or maybe?

sparky2 · 01-09-2009, 05:15 PM

I'm really new to this rc crawler stuff. How would mirroring the tranny help? You are still twisting a drive shaft to transmit power. The action of turning that shaft will have its effects on the chassis no matter where you spin it from.

I must be missing something. How does it alleviate some of the twist?

A lower ratio in the diff - now that could eliminate some of the strain required to spin the shaft eliminating some of the twist. Too bad they're not available.

You've got a bad ass rig there. I have the RR as well and I've only made it to the fabbing up some decent links stage. Where did you get that belly pan?

RCCjetboat · 01-09-2009, 05:48 PM

flipping the trans will put the weight of the motor toward the front of the center line. This helps in steep climbs. Running the shocks upside down is common but, stock axials will leak horribly though.

Drop that battery down off the top, there are several trays available to replace the front servo mount and hold your battery. It will be the single best thing you can do to improve the truck.

You have a great start, keep crawling!

urbanmuddboger · 01-09-2009, 07:49 PM

Quote:

Originally Posted by sparky2

I'm really new to this rc crawler stuff. How would mirroring the tranny help? You are still twisting a drive shaft to transmit power. The action of turning that shaft will have its effects on the chassis no matter where you spin it from.

I must be missing something. How does it alleviate some of the twist?

A lower ratio in the diff - now that could eliminate some of the strain required to spin the shaft eliminating some of the twist. Too bad they're not available.

You've got a bad ass rig there. I have the RR as well and I've only made it to the fabbing up some decent links stage. Where did you get that belly pan?

i got the belly pan at a local hobby shop but if you go to
http://www3.towerhobbies.com/cgi-bin...AdvancedSearch
there is also a ton of shit at rccrawler.com

edit RCjetboat hit the nail on the head i transfers the weight of the motor to the side that needs it

urbanmuddboger · 02-11-2009, 12:06 AM

i did a little more to it today i will post up tomarrow
i figured out how to get better steering angle out of the stock "drive cups"
and some more stuff

01-07-2009, 09:54 PM	#1 (permalink)
urbanmuddboger Registered User Join Date: Nov 2007 Member # 102365 Location: cottonwood ca Posts: 1,171	crawler done the urban way well mabye not "badass" but it crawls like no other crawler i have owned(this is the first) specs axial ax-10 novak 55t novak crawler ESC axial ar-1 reciver axial servo aluminum stnc skid plate bent links all around mirroed tranny weighted wheels 7 oz each in the front and 4 in back plus super sweet BL rings home built link plates for ESC and reciver and a secret weapon __________________ MOLON LABE

01-07-2009, 09:58 PM	#2 (permalink)
urbanmuddboger Registered User Join Date: Nov 2007 Member # 102365 Location: cottonwood ca Posts: 1,171	you can see the secret weapon in this pic its a pen tube slid over the steering links to act as a roller __________________ MOLON LABE Last edited by urbanmuddboger; 01-07-2009 at 09:59 PM.

01-08-2009, 10:22 AM	#4 (permalink)
urbanmuddboger Registered User Join Date: Nov 2007 Member # 102365 Location: cottonwood ca Posts: 1,171	it is the same stifness i just cut the coil and streched it out for tourqe lean it works alright but i think the mirrored tranny helps the most __________________ MOLON LABE

01-08-2009, 04:13 PM	#6 (permalink)
urbanmuddboger Registered User Join Date: Nov 2007 Member # 102365 Location: cottonwood ca Posts: 1,171	to put the weight of the oil at the lowest point? idk i thought they looked mo betta this way __________________ MOLON LABE

01-09-2009, 12:38 AM	#8 (permalink)
urbanmuddboger Registered User Join Date: Nov 2007 Member # 102365 Location: cottonwood ca Posts: 1,171	yes its fliped (motor on the other side ) but the gears are still in the back you have to pull the tranny apart and switch the in put shaft (were the spur gear goes) its pretty stright forward __________________ MOLON LABE

01-08-2009, 08:08 AM	#3 (permalink)
Grind Just ask'er out! Join Date: Feb 2007 Member # 86289 Location: Bakersfield, CA (SW) Posts: 974	Do you have stiffer coils on one side of the chassis? it looks like there coil'd tighter on the passenger side. Torque twist elimination?

01-08-2009, 10:29 AM	#5 (permalink)
BIGJOEDUCKSLAYER Registered User Join Date: Jan 2007 Member # 85796 Location: SACRAMENTO Posts: 628	A little tuning and you would have a great crawler. Any reason your front shocks are on upside down?

01-08-2009, 10:42 PM	#7 (permalink)
Grind Just ask'er out! Join Date: Feb 2007 Member # 86289 Location: Bakersfield, CA (SW) Posts: 974	Mirrored tranny? is that another term for flipped or something?

01-09-2009, 08:01 AM	#9 (permalink)
Grind Just ask'er out! Join Date: Feb 2007 Member # 86289 Location: Bakersfield, CA (SW) Posts: 974	That's cool, never heard of that being done before. I have an R2 dig trans though. Don't think that would work right. Or maybe?

01-09-2009, 05:15 PM	#10 (permalink)
sparky2 Registered User Join Date: Aug 2003 Member # 22060 Location: Oklahoma Posts: 128	I'm really new to this rc crawler stuff. How would mirroring the tranny help? You are still twisting a drive shaft to transmit power. The action of turning that shaft will have its effects on the chassis no matter where you spin it from. I must be missing something. How does it alleviate some of the twist? A lower ratio in the diff - now that could eliminate some of the strain required to spin the shaft eliminating some of the twist. Too bad they're not available. You've got a bad ass rig there. I have the RR as well and I've only made it to the fabbing up some decent links stage. Where did you get that belly pan?

01-09-2009, 05:48 PM	#11 (permalink)
RCCjetboat Registered User Join Date: May 2008 Member # 113332 Location: Romeoville IL Posts: 127	flipping the trans will put the weight of the motor toward the front of the center line. This helps in steep climbs. Running the shocks upside down is common but, stock axials will leak horribly though. Drop that battery down off the top, there are several trays available to replace the front servo mount and hold your battery. It will be the single best thing you can do to improve the truck. You have a great start, keep crawling!

02-11-2009, 12:06 AM	#13 (permalink)
urbanmuddboger Registered User Join Date: Nov 2007 Member # 102365 Location: cottonwood ca Posts: 1,171	i did a little more to it today i will post up tomarrow i figured out how to get better steering angle out of the stock "drive cups" and some more stuff __________________ MOLON LABE

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