RCCrawler Forums

4link4eva · 08-21-2006, 01:00 PM

...another buildup thread. This clod is finished, I'm just typing it up whenever I get the time.

So I'd had an old bullhead since I was little, and I typed in bullhead in Google to see what would come up. Predictably, the results were mostly people selling wall mounted bull heads. Eventually, I discovered that the clodbuster was exactly the same thing as the bullhead, so I typed that in, and guess what website I found. Yup. You've guessed it. Anyway, I was looking at the rigs in the "Rock clod gallery" and I thought to myself, I could one of them, easy... My initial design was a stick, as it looked so damn simple and easy to make. Then I thought about the severe lack of rocks in English fenland. Hmmm... So I settled on a 4link design of some sort, but forgot about it for a while. But a few weeks later I passed a model shop in Cambridge, and wombled in for a look. I spotted a set of rod ends that I thought looked suitable (how wrong I was to be) and bought them, along with some threaded rod. I fabbed up a chassis of sorts, and tried it with the MSC. On the first bit of articulation, the axle flipped and broke all of the links. Bummer.

CreepyCrawler88 · 08-21-2006, 01:19 PM

That looks crazy!! not in a bad way just crazy. Whats the WB on that, looks long!!

well looks cool keep the pics posted!!

4link4eva · 08-21-2006, 02:28 PM

LOL! Just so you know, that's an old design. It had a huge wheelbase and fell apart at the first trundle round the garden.

Anyways, I decided an entirely new design was in order. I pondered on it for a while, and came up with a design not dissimilar to the NN. I ordered a set of Traxxas rod ends, and mounted them on beefy links cut from 1/4" aluminium.

A few days later I was talking to a freind about my project, when I remembered that he used to have a Kyosho tracker. When I asked if he still owned it, he replied "Yeah, you want it?". "Well, I suppose I could take it off your hands", I replied

. I got it home and had a look at the thing. It didn't work, which was down to the MSC. I replaced this with an ESC from a model boat, which left me with 3 servos: 1 from the clods steering, 1 from the clods MSC, and 1 from the trackers MSC. So I ended up with a 3 servo steering setup, 2 on the front, 1 on the back, brought together by 2 y-harnesses.

I then transplanted the trackers oil shocks into the clod springs, and narrowed the tyres. I put the MOPED ESC in a tupperware box, along with the reciever and the majority of the wiring.

Finally, today I fabricated a lid for the chassis, instead of a body. But, I broke a servo horn and one of my crappy bits of soldering. Oh well...

Cheers

4link4eva · 08-22-2006, 02:50 AM

Any comments? Any?

run2jeepn · 08-22-2006, 03:24 AM

Well it's better then the first build. Needs some better tires. The chassis looks good.

andrewmp6 · 08-22-2006, 06:42 AM

tires and maybe change the steering links for stronger ones

scalecrawler · 08-22-2006, 07:00 AM

Looks good, but why do you have to front servos?

4link4eva · 08-22-2006, 08:20 AM

Thanks, I have two front servos because it gives more steering power, without having to buy high-torque servos. Stronger links? Have you seen the size of the main front link?

As there aren't many rocks around here I intend to fit Imex all-ts

Cheers 8-)

Johnson420 · 08-22-2006, 10:30 AM

In the last picture the servo is mounted at an angle, not like the front servo's. Why is that?

4link4eva · 08-22-2006, 11:01 AM

It's mounted at an angle to reduce the angle the links would be at, as the link needed to be mounted at the top of the servo, or else crab steer everywhere.

4link4eva · 08-22-2006, 02:58 PM

BTA steering

:

There are now 2 servos on the back and one on the front, only just finished it so I'll test the setup tommorow, with pics.

Cheers

STANG KILLA SS · 08-22-2006, 03:04 PM

what lower links are those?

Brandon · 08-22-2006, 03:24 PM

2 servos on the rear and one on the front? How does that work, did you need more steering in the rear? Just curious

Second design looks much better btw!

4link4eva · 08-22-2006, 04:06 PM

The suspension links or the steering links? Anyway, they are both made from the same stuff. 1/4" aluminium plate, cut into strips, with Traxxas rod ends.

The 2 servos in the back are there purely for more steering torque, and are joined by a y-harness. It would work with one, but better with 2.

Cheers 8-)

Brandon · 08-22-2006, 04:07 PM

haha I see, you must have a stronger servo in the front then. Sounds cool. Are you running a reciever pack to power all those servos?

4link4eva · 08-22-2006, 04:18 PM

No, I just get less power to the front at the moment. I'd like a more powerful servo in the front though, but alas, not enough money. As for the reciever pack, not at the moment but I probably will do as my runtimes are starting to suck.

Cheers 8-)

4link4eva · 08-22-2006, 04:21 PM

As for a high torque servo, what do you think of this?

CoreyK · 08-22-2006, 04:56 PM

For a clod, you need something with more like 180oz+ of torque, that only has 132oz

murdock · 08-23-2006, 03:04 PM

its coming along, what body are you going to use?

4link4eva · 08-23-2006, 03:46 PM

Hmmm.. I don't know. I might just leave it as it is, with just a lid.

08-21-2006, 01:00 PM	#1
4link4eva RCC Addict Join Date: May 2006 Location: In England, looking for the threadlock... Posts: 1,150	Yup, you've guessed it... ...another buildup thread. This clod is finished, I'm just typing it up whenever I get the time. So I'd had an old bullhead since I was little, and I typed in bullhead in Google to see what would come up. Predictably, the results were mostly people selling wall mounted bull heads. Eventually, I discovered that the clodbuster was exactly the same thing as the bullhead, so I typed that in, and guess what website I found. Yup. You've guessed it. Anyway, I was looking at the rigs in the "Rock clod gallery" and I thought to myself, I could one of them, easy... My initial design was a stick, as it looked so damn simple and easy to make. Then I thought about the severe lack of rocks in English fenland. Hmmm... So I settled on a 4link design of some sort, but forgot about it for a while. But a few weeks later I passed a model shop in Cambridge, and wombled in for a look. I spotted a set of rod ends that I thought looked suitable (how wrong I was to be) and bought them, along with some threaded rod. I fabbed up a chassis of sorts, and tried it with the MSC. On the first bit of articulation, the axle flipped and broke all of the links. Bummer.

08-22-2006, 02:58 PM	#11
4link4eva RCC Addict Join Date: May 2006 Location: In England, looking for the threadlock... Posts: 1,150	Update: BTA steering : There are now 2 servos on the back and one on the front, only just finished it so I'll test the setup tommorow, with pics. Cheers

08-21-2006, 01:19 PM	#2
CreepyCrawler88 Quarry Creeper Join Date: Nov 2005 Location: Valencia Posts: 367	That looks crazy!! not in a bad way just crazy. Whats the WB on that, looks long!! well looks cool keep the pics posted!!

08-21-2006, 02:28 PM	#3
4link4eva RCC Addict Join Date: May 2006 Location: In England, looking for the threadlock... Posts: 1,150	LOL! Just so you know, that's an old design. It had a huge wheelbase and fell apart at the first trundle round the garden. Anyways, I decided an entirely new design was in order. I pondered on it for a while, and came up with a design not dissimilar to the NN. I ordered a set of Traxxas rod ends, and mounted them on beefy links cut from 1/4" aluminium. A few days later I was talking to a freind about my project, when I remembered that he used to have a Kyosho tracker. When I asked if he still owned it, he replied "Yeah, you want it?". "Well, I suppose I could take it off your hands", I replied . I got it home and had a look at the thing. It didn't work, which was down to the MSC. I replaced this with an ESC from a model boat, which left me with 3 servos: 1 from the clods steering, 1 from the clods MSC, and 1 from the trackers MSC. So I ended up with a 3 servo steering setup, 2 on the front, 1 on the back, brought together by 2 y-harnesses. I then transplanted the trackers oil shocks into the clod springs, and narrowed the tyres. I put the MOPED ESC in a tupperware box, along with the reciever and the majority of the wiring. Finally, today I fabricated a lid for the chassis, instead of a body. But, I broke a servo horn and one of my crappy bits of soldering. Oh well... Cheers

08-22-2006, 02:50 AM	#4
4link4eva RCC Addict Join Date: May 2006 Location: In England, looking for the threadlock... Posts: 1,150	Any comments? Any?

08-22-2006, 03:24 AM	#5
run2jeepn I wanna be Dave Join Date: Sep 2005 Location: USA Posts: 11,196	Well it's better then the first build. Needs some better tires. The chassis looks good.

08-22-2006, 06:42 AM	#6
andrewmp6 Rock Crawler Join Date: Apr 2006 Location: louisville Posts: 814	tires and maybe change the steering links for stronger ones

08-22-2006, 07:00 AM	#7
scalecrawler Quarry Creeper Join Date: Jul 2006 Location: Snover, MI Posts: 301	Looks good, but why do you have to front servos?

08-22-2006, 08:20 AM	#8
4link4eva RCC Addict Join Date: May 2006 Location: In England, looking for the threadlock... Posts: 1,150	Thanks, I have two front servos because it gives more steering power, without having to buy high-torque servos. Stronger links? Have you seen the size of the main front link? As there aren't many rocks around here I intend to fit Imex all-ts Cheers 8-)

08-22-2006, 10:30 AM	#9
Johnson420 Quarry Creeper Join Date: Oct 2005 Location: SoCal Posts: 493	In the last picture the servo is mounted at an angle, not like the front servo's. Why is that?

08-22-2006, 11:01 AM	#10
4link4eva RCC Addict Join Date: May 2006 Location: In England, looking for the threadlock... Posts: 1,150	It's mounted at an angle to reduce the angle the links would be at, as the link needed to be mounted at the top of the servo, or else crab steer everywhere.

08-22-2006, 03:04 PM	#12
STANG KILLA SS ~THE SCALE SHOP~ Join Date: Apr 2006 Location: KILLEEN TX Posts: 10,056	what lower links are those?

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08-22-2006, 03:24 PM	#13
Brandon Im Brandon Join Date: Feb 2005 Location: Colfax, CA Posts: 8,156	2 servos on the rear and one on the front? How does that work, did you need more steering in the rear? Just curious Second design looks much better btw!

08-22-2006, 04:06 PM	#14
4link4eva RCC Addict Join Date: May 2006 Location: In England, looking for the threadlock... Posts: 1,150	The suspension links or the steering links? Anyway, they are both made from the same stuff. 1/4" aluminium plate, cut into strips, with Traxxas rod ends. The 2 servos in the back are there purely for more steering torque, and are joined by a y-harness. It would work with one, but better with 2. Cheers 8-)

08-22-2006, 04:07 PM	#15
Brandon Im Brandon Join Date: Feb 2005 Location: Colfax, CA Posts: 8,156	haha I see, you must have a stronger servo in the front then. Sounds cool. Are you running a reciever pack to power all those servos?

08-22-2006, 04:18 PM	#16
4link4eva RCC Addict Join Date: May 2006 Location: In England, looking for the threadlock... Posts: 1,150	No, I just get less power to the front at the moment. I'd like a more powerful servo in the front though, but alas, not enough money. As for the reciever pack, not at the moment but I probably will do as my runtimes are starting to suck. Cheers 8-)

08-22-2006, 04:21 PM	#17
4link4eva RCC Addict Join Date: May 2006 Location: In England, looking for the threadlock... Posts: 1,150	As for a high torque servo, what do you think of this?

08-22-2006, 04:56 PM	#18
CoreyK Rock Crawler Join Date: May 2005 Location: In front of my comp Posts: 836	For a clod, you need something with more like 180oz+ of torque, that only has 132oz

08-23-2006, 03:04 PM	#19
murdock Rock Crawler Join Date: Feb 2006 Location: jacksonville beach Posts: 848	its coming along, what body are you going to use?

08-23-2006, 03:46 PM	#20
4link4eva RCC Addict Join Date: May 2006 Location: In England, looking for the threadlock... Posts: 1,150	Hmmm.. I don't know. I might just leave it as it is, with just a lid.

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