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01-02-2005, 04:19 AM | #2 |
The Wheels Keep Turning Join Date: Jan 2004 Location: Phoenix, Arizona
Posts: 2,831
| Re: How to build a Clodbuster Rock Crawler How to build - Part 3: Construction and assorted notes: This is a work in progress. Make sure to use locktight on any metal to metal hardware like a metal screw going into a metal part or into a metal nut. Nitro or gas powered r/c trucks do not make good crawlers at all for many reasons. Electric motors have allot more "control". You can control the torque and power you apply much more precisely. Electrics have instant reverse. Not all nitros even have reverse systems stock. Nitros free wheel (no brake or engine power) when the throttle on the radio is returned to neutral. This allows the truck to roll which you don't want to do when crawling on inclines. You can lock your differentials (diffs) using jb weld or hot glue. Four Wheel Steering: To make the most capable rock crawler you should setup four wheel steering (4ws - steer the front and rear wheels). You can use a Y servo cable to do this. The y cable is inexpensive ($4-$10) and you can get them at any local hobby shop or online hobby store. But this will give you full time 4ws which is not really that good. The best setup is an independent 4ws system. Setup like this, the front and rear servo are wired seperately into the receiver on different channels. For this you need to have at least a 3 channel radio system. The cheapest method to do this is to modify a tq3 system. You can buy the parts or a complete system from www.thecrawlerstore.com or you can modify your system with the info found here: My Modded TQ3 Update - Added EPA pots You can also use a 3 or more channel radio system. Different radio systems are listed above in part 1 of this article. Mounting servos: Here is some info on how to mount your servos to the clod axles. Aggressor Steering System Aggressor Steering System You should also cut off the 4 little knubs (steering stops) on each knuckle to increase turning radius. I use a pair of wire cutters or knips, but you can use a dremel tool with a cutoff wheel (use safety glasses) or any other means. About the super clodbuster kits: The super clod kit does not come with any type of controller and receiver, servos, batteries, or any wiring that you would use on a clod based crawler. the stock clod can't do much of anything. It's only worth buying for the axles. Making you own links: http://www.rccrawler.com/customlink.htm http://www.rccrawler.com/links2.htm Wiring your motors: http://www.utrcrc.com/utrcrc/tech.html Links to other usefull threads: RCCRAWLER tips, cheap tricks / parts guide. An explanation of the different types of crawlers, 2.2, super, unlimited, shafty, tubers, price considerations, performance, etc. A Detailed Description of the Different Types of Crawlers |
02-11-2005, 02:08 PM | #3 |
Rock Crawler Join Date: Feb 2005 Location: Oxford, MA
Posts: 802
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How about ways to lock the axles. What works, what doesn't. Or do you not lock at all? Koko |
02-11-2005, 03:24 PM | #4 |
Rock Stacker Join Date: Feb 2005 Location: Heber, Utah
Posts: 87
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Use JB weld, hot glue, or a commercial diff locker to lock your diff. It is a must to lock it. Crawling is all about getting the power to the ground.
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04-25-2005, 09:08 AM | #5 | |
I wanna be Dave Join Date: Jan 2004 Location: Flagstaff, AZ
Posts: 2,399
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04-25-2005, 09:08 AM | #6 |
I wanna be Dave Join Date: Jan 2004 Location: Flagstaff, AZ
Posts: 2,399
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ALL YOU NEED TO KNOW ABOUT BEHIND THE AXLE (BTA) STEERING! http://www.rccrawler.com/forum/tamiya-clod-buster/8546-does-behind-axles-limit-artic-post86788.html |
10-20-2005, 10:31 AM | #7 |
Newbie Join Date: Oct 2005 Location: Belgium
Posts: 5
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how do you link the servos for 4ws? or do you need a seperate channel for the rear wheels?
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10-20-2005, 10:42 AM | #8 |
I wanna be Dave Join Date: Apr 2005 Location: Vegas
Posts: 7,172
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You can get a Y adapter or you can adapt the third channel with a toggle switch from thecrawlerstore.com. Adapting the third channel will allow you to crab walk or steer opposite at will. |
11-12-2005, 11:30 AM | #9 | |
I wanna be Dave Join Date: Jan 2004 Location: Flagstaff, AZ
Posts: 2,399
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They look stout; they did reinforce the dogbone area on the long side, but in not having that part where in necks down... You're likely going to take away a lot of your steering ability. | |
11-12-2005, 02:46 PM | #10 | |
The Wheels Keep Turning Join Date: Jan 2004 Location: Phoenix, Arizona
Posts: 2,831
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I had to triple check the post date. I just can't believe it!!!!!!!!!!!! WHATS UP MAN! | |
12-10-2005, 11:06 AM | #11 | |
The Wheels Keep Turning Join Date: Jan 2004 Location: Phoenix, Arizona
Posts: 2,831
| Quote:
Welcome to r/c crawling. You can buy a used crawler off of this site or ebay. That's always the cheapest route. If you want all new parts you can either buy a clod kit and sell off the remaining parts you don't use, or just buy a set of clod axles from one of the vendors on here. Then purchase one of the many chassis available or build your own. There are many options. Spend some time looking around the boards, reading and searching. After a while you'll figure out what route you want to take. Welcome to RCC! | |
01-20-2006, 04:23 AM | #12 |
Rock Crawler Join Date: Jan 2006 Location: Colorado Springs
Posts: 606
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Hey RockRevolver, did you ever finish up that number crunching? I'm currently doing the same thing. Here's what I've come up with so far: clodbuster kit 190 towerhobbies integy lathe 55t motors 37 towerhobbies robinson 9tooth pinion 6 towerhobbies tekin rebel2 esc 80 towerhobbies the stick 199 thecrawlerstore adjustable motormounts 30 thecrawlerstore Hpi Bronco body 25 towerhobbies total 567 txt 355 towerhobbies integy lathe 55t motor 18 towerhobbies robinson 9tooth pinion 3 towerhobbies tekin rebel2 esc 80 towerhobbies gd600 13 towerhobbies total 469 clod axles 130 thecrawlerstore integy lathe 55t motors 37 towerhobbies robinson 9tooth pinion 6 towerhobbies tekin rebel2 esc 80 towerhobbies the stick 199 thecrawlerstore adjustable motormounts 30 thecrawlerstore tires 50 towerhobbies rims 17 towerhobbies wheel adapters 45 thecrawlerstore total 594 Oddly enuff its cheaper to buy the clod kit and go from there. I also plan on narrowing the stock clod rims and tires to try and keep costs down at first, the wife is giving me a spending limit, its my b-day and she has never really liked my RC addiction so i'm just grateful that she has even offered to get me something I actually like!!! All kidding aside, I'm really looking forward to getting started in this new(to me anyway) hobby. I also plan on using my JR XS3 Tx. With 4WS, can it be/should it be used as proportional steering just like front only steering or is it better to just have full tilt one way or the other in the rear like with the TQ3 kits that Kevin provides? I'm going with the Stick simply because if I end up not liking it, it will be easy to pass on and if I end up not being able to get enuff crawling, then I got the best from the start, not trying to brown nose! If I've missed anything, please let me know. I've been lurking here for about a month and you guys are doing some amazing stuff. Thanks for all the useful info you guys put out, keep it coming!! Tom |
01-20-2006, 07:39 AM | #13 | |
The Wheels Keep Turning Join Date: Jan 2004 Location: Phoenix, Arizona
Posts: 2,831
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01-31-2006, 01:23 PM | #14 |
Newbie Join Date: Sep 2005 Location: winchester
Posts: 14
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02-26-2006, 04:16 AM | #15 |
Rock Crawler Join Date: Feb 2006 Location: Warner Robins
Posts: 803
| Clodbuster gearing info: Pinion 32 pitch 13 tooth gear ratio 1:30.1 Speed, Stock 15mph / Run Time, about 8 minutes 2000mAH batteryPinion gear ratio: 8T 48.89:1 9T 43.46:1 10T 39.11:1 11T 35.56:1 12T 32.59:1 13T 30.08:1 14T 27.94:1 15T 26.07:1 16T 24.44:1 Figured I'd post it since people ask about it alot! |
03-16-2006, 07:02 PM | #16 |
Newbie Join Date: Mar 2006 Location: Nampa
Posts: 3
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I want to build my own crawler from a clodbuster but there's one thing i don't understand, if the clodbuster has 2 motors, then doesn't it need an esc that is wired for 2 motors? How does this all work? I want to have one battery also.
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03-17-2006, 10:19 PM | #17 | |
I wanna be Dave Join Date: Dec 2005 Location: Happiness is a warm AK.
Posts: 12,563
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http://www.utrcrc.com/tech.html | |
03-18-2006, 07:09 AM | #18 |
The Wheels Keep Turning Join Date: Jan 2004 Location: Phoenix, Arizona
Posts: 2,831
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Wire it up just like the picture. The front motor will have positive to positive, the rear motor will be opposite. So the rear will have the positive wire going to the negative terminal on the motor.
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05-04-2006, 03:31 PM | #19 |
Pebble Pounder Join Date: Jan 2006 Location: Folsom
Posts: 160
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I have a quick newb question. I was wondering how some guys wire up for another battery pack to run the servo's. How does that join up with the ESC and that battery? Is there any other part that is needed other then the extra 6v battery? illustraions or pictures help a lot for me.
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05-04-2006, 04:03 PM | #20 |
The Wheels Keep Turning Join Date: Jan 2004 Location: Phoenix, Arizona
Posts: 2,831
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I know you have to disable (cut or disconnect) one of the power wires coming from the esc. Basically you set it up so the esc only has a signal to it from the receiver. But I can't remember now what wire you need to disable. It's somewhere here on the boards. You may want to ask this in the electronics section. Then you just plug the battery into the battery slot in the receiver.
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