RCCrawler Forums

onefstsnake · 09-06-2005, 09:37 PM

JB Weld...

Mnster · 09-07-2005, 12:17 AM

Yeah we would but these are my brothers wheels and tires we just kinda borrowed for the run. But now that I have the 40 series Moab tires waiting to be installed on my Clod. I'm sure that it won't be long till Soya buys some Moabs.

onefstsnake · 09-07-2005, 12:28 AM

Im probably just gunna use some stock Savage Tires and wheels.

I wanna get the thing built before I start buying tires...

superman0604 · 10-14-2005, 11:10 PM

Sorry for digging up an old thread. I am building a crawler based on yours and was wondering if I could get some close ups of the point where your middle links meet. Also if you would like to inlcude any other photos you think would help with the building of my first crawler.

By the way great crawler.

Mnster · 10-15-2005, 12:34 AM

Here is some pics

superman0604 · 10-15-2005, 10:26 AM

How long is the top of you chassis?

Mnster · 10-15-2005, 10:33 PM

8 1/8

ILoveRCRockCrawlin · 10-15-2005, 11:15 PM

wow thats nice

superman0604 · 10-16-2005, 01:10 AM

One last question and I should be set to go. How exactly are your shocks mounted to the links? I have heard of people using cable clamps but it looks like you are using something different.

Mnster · 10-16-2005, 07:03 PM

1/4 cable clamps and 1/4 set screw collars on each side of the clamp to lock it in place.

kliff · 02-19-2006, 07:33 AM

Hey Mnster, just so's you'll know, that 3X3 chassis has inspired the beginning of another build....I'l be starting mine shortly.

BTW....the 1/4" lock collars are no problem to find....but the "cable clamps ?" I haven't found yet, McMaster Carr? Is there possibly another nomenclature they are known by ?:?

Mnster · 02-19-2006, 10:23 AM

Look in any local hardware store in the electrical department. You'll find what you need.

http://www.acehardware.com/product/i...archId=1304463

kliff · 02-20-2006, 06:04 AM

Thanks Mnster, got some on the way from Cole82

Trucks Women & Beer · 02-21-2006, 10:37 AM

First off, great work on your crawler project here. Nothing like biulding your own from scratch is there? I have a similar car that I've built out of spare parts in the last month but have run into a snag.

Do you have problems with the torque of the drive lines twisting your truck? My My 4 link setup torque rolls so bad it "crabs" and roll steers when I apply power. I have to keep the front wheels turned all the time just to drive forward!

I have checked all the link lengths and my trig more than once, the chasis is straight and the camber of the wheels is good. I'm running a home made chasis, links, and suspention; a 55 turn lathe motor, 72/18 drive, and both the diffs are locked. I'd appreciate any advice you can give me.

RCHunter · 02-21-2006, 10:57 AM

Sorry to snipe but sounds like your truck is too high. If you can, lower it and stiffen your shocks. Add 50 to 60 wt oil.

Mnster · 02-21-2006, 01:36 PM

Yes Soya and I have this same issue as well. Lowering the truck did help a lot with the balance, torque twist, and rollovers. However, the chassis still has large amounts of torque twist when climbing large hills. I would think the reasons for the torque twist would be the high center of gravity, the link mounted shocks, and the huge weight of the truck. The 15" wheel base just is not enough anymore. Now that most of the people we rock crawl with run about 17" it needs a little updating. However, Soya and I didn't really build the truck to rock crawl at a comp level. Soya uses his truck as a mud truck, puddle jumper, general bashing machine. Which is why we have most of the stuff mounted high on the truck.

Trucks Women & Beer · 02-21-2006, 06:20 PM

Thanks for the feedback. I tried using suspention limiting straps today made from fishing leaders. Helps some but I think further tweaking of the springs will hopefully help cure the problem.

As far as wheel base, my truck has an 18 inch wheel base, it sounds too long, but it is a 5.75 scale 104 inch wheel base and 39 inch tires using standard monster truck tires. When I get the bugs worked out, I'll post some pictures. Thanks again guys.

Trucks Women & Beer · 02-23-2006, 11:47 AM

I have an update on the torque roll issue!!
First off, I took RC Hunter's advice and lowered the truck. My lower links are sitting at around 10 to 15 degrees above horizontal. I'm using standard T-Maxx shocks and the red springs.
The truck torque rolls to the left so I use a much heavier spring on the left rear to help stabilize the roll.
I added a little fuel line to the push rod of the shock to prevent the internals from bottoming out and blowing the shock. The truck basically sits on the fuel line when the shocks are fully compressed (which is most of the time).
I'm using 5 inch fishing leaders as travel limiting straps to keep the front end from over extending and allowing my chasis raise up (raise the center of gravity) and flip the truck. The fishing leaders test at (I think) 40 pounds. This seems to help the most in hill/rock climbing.
The rear of the truck suspention travels unihibited.
The chasis weight fallows the stable front suspention whereas the rear provides for most for the articulation.

Each setup is different, but I think this will help out anyone with driveline / torque roll issues.

cook · 02-23-2006, 09:34 PM

what size tube is that???

kliff · 02-24-2006, 05:34 AM

Main chassis tube is 3" x 3"..... .125(1/8th)" thick

Quote:

Originally Posted by cook

what size tube is that???

02-19-2006, 07:33 AM	#71
kliff Rock Stacker Join Date: Feb 2006 Location: Grovetown Posts: 59	Hey Mnster, just so's you'll know, that 3X3 chassis has inspired the beginning of another build....I'l be starting mine shortly. BTW....the 1/4" lock collars are no problem to find....but the "cable clamps ?" I haven't found yet, McMaster Carr? Is there possibly another nomenclature they are known by ?:? Last edited by kliff; 02-19-2006 at 08:04 AM.

02-19-2006, 10:23 AM	#72
Mnster MWRCA'er Join Date: Apr 2004 Location: Machesney Park IL Posts: 3,995	Look in any local hardware store in the electrical department. You'll find what you need. http://www.acehardware.com/product/i...archId=1304463 Last edited by Mnster; 02-19-2006 at 10:28 AM.

02-21-2006, 10:37 AM	#74
Trucks Women & Beer Newbie Join Date: Feb 2006 Location: Albuquerque Posts: 20	Torque Roll Issues First off, great work on your crawler project here. Nothing like biulding your own from scratch is there? I have a similar car that I've built out of spare parts in the last month but have run into a snag. Do you have problems with the torque of the drive lines twisting your truck? My My 4 link setup torque rolls so bad it "crabs" and roll steers when I apply power. I have to keep the front wheels turned all the time just to drive forward! I have checked all the link lengths and my trig more than once, the chasis is straight and the camber of the wheels is good. I'm running a home made chasis, links, and suspention; a 55 turn lathe motor, 72/18 drive, and both the diffs are locked. I'd appreciate any advice you can give me.

02-21-2006, 01:36 PM	#76
Mnster MWRCA'er Join Date: Apr 2004 Location: Machesney Park IL Posts: 3,995	Yes Soya and I have this same issue as well. Lowering the truck did help a lot with the balance, torque twist, and rollovers. However, the chassis still has large amounts of torque twist when climbing large hills. I would think the reasons for the torque twist would be the high center of gravity, the link mounted shocks, and the huge weight of the truck. The 15" wheel base just is not enough anymore. Now that most of the people we rock crawl with run about 17" it needs a little updating. However, Soya and I didn't really build the truck to rock crawl at a comp level. Soya uses his truck as a mud truck, puddle jumper, general bashing machine. Which is why we have most of the stuff mounted high on the truck. Last edited by Mnster; 02-21-2006 at 01:53 PM.

02-23-2006, 11:47 AM	#78
Trucks Women & Beer Newbie Join Date: Feb 2006 Location: Albuquerque Posts: 20	Torque roll Fixed for now I have an update on the torque roll issue!! First off, I took *RC Hunter's* advice and lowered the truck. My lower links are sitting at around 10 to 15 degrees above horizontal. I'm using standard T-Maxx shocks and the red springs. The truck torque rolls to the left so I use a much heavier spring on the left rear to help stabilize the roll. I added a little fuel line to the push rod of the shock to prevent the internals from bottoming out and blowing the shock. The truck basically sits on the fuel line when the shocks are fully compressed (which is most of the time). I'm using 5 inch fishing leaders as travel limiting straps to keep the front end from over extending and allowing my chasis raise up (raise the center of gravity) and flip the truck. The fishing leaders test at (I think) 40 pounds. This seems to help the most in hill/rock climbing. The rear of the truck suspention travels unihibited. The chasis weight fallows the stable front suspention whereas the rear provides for most for the articulation. Each setup is different, but I think this will help out anyone with driveline / torque roll issues.

09-06-2005, 09:37 PM	#61
onefstsnake Quarry Creeper Join Date: Aug 2005 Location: Northern Va Posts: 244	JB Weld...

09-07-2005, 12:17 AM	#62
Mnster MWRCA'er Join Date: Apr 2004 Location: Machesney Park IL Posts: 3,995	Yeah we would but these are my brothers wheels and tires we just kinda borrowed for the run. But now that I have the 40 series Moab tires waiting to be installed on my Clod. I'm sure that it won't be long till Soya buys some Moabs.

09-07-2005, 12:28 AM	#63
onefstsnake Quarry Creeper Join Date: Aug 2005 Location: Northern Va Posts: 244	Im probably just gunna use some stock Savage Tires and wheels. I wanna get the thing built before I start buying tires...

10-14-2005, 11:10 PM	#64
superman0604 Newbie Join Date: Sep 2005 Location: Boyd (By fort worth) Posts: 24	Sorry for digging up an old thread. I am building a crawler based on yours and was wondering if I could get some close ups of the point where your middle links meet. Also if you would like to inlcude any other photos you think would help with the building of my first crawler. By the way great crawler.

10-15-2005, 12:34 AM	#65
Mnster MWRCA'er Join Date: Apr 2004 Location: Machesney Park IL Posts: 3,995	Here is some pics

10-15-2005, 10:26 AM	#66
superman0604 Newbie Join Date: Sep 2005 Location: Boyd (By fort worth) Posts: 24	How long is the top of you chassis?

10-15-2005, 10:33 PM	#67
Mnster MWRCA'er Join Date: Apr 2004 Location: Machesney Park IL Posts: 3,995	8 1/8

10-15-2005, 11:15 PM	#68
ILoveRCRockCrawlin RCC Addict Join Date: Dec 2004 Location: Central NY Posts: 1,980	wow thats nice

10-16-2005, 01:10 AM	#69
superman0604 Newbie Join Date: Sep 2005 Location: Boyd (By fort worth) Posts: 24	One last question and I should be set to go. How exactly are your shocks mounted to the links? I have heard of people using cable clamps but it looks like you are using something different.

10-16-2005, 07:03 PM	#70
Mnster MWRCA'er Join Date: Apr 2004 Location: Machesney Park IL Posts: 3,995	1/4 cable clamps and 1/4 set screw collars on each side of the clamp to lock it in place.

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02-20-2006, 06:04 AM	#73
kliff Rock Stacker Join Date: Feb 2006 Location: Grovetown Posts: 59	Thanks Mnster, got some on the way from Cole82

02-21-2006, 10:57 AM	#75
RCHunter Quarry Creeper Join Date: Mar 2005 Location: Florida Posts: 216	Sorry to snipe but sounds like your truck is too high. If you can, lower it and stiffen your shocks. Add 50 to 60 wt oil.

02-21-2006, 06:20 PM	#77
Trucks Women & Beer Newbie Join Date: Feb 2006 Location: Albuquerque Posts: 20	Thanks for the feedback. I tried using suspention limiting straps today made from fishing leaders. Helps some but I think further tweaking of the springs will hopefully help cure the problem. As far as wheel base, my truck has an 18 inch wheel base, it sounds too long, but it is a 5.75 scale 104 inch wheel base and 39 inch tires using standard monster truck tires. When I get the bugs worked out, I'll post some pictures. Thanks again guys.

02-23-2006, 09:34 PM	#79
cook Newbie Join Date: Feb 2006 Location: wichita Posts: 19	what size tube is that???

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