RCCrawler Forums

RCALLOYS · 02-09-2005, 12:57 PM

Hello All
Well, we've decided to rearrange the transmission. Nothing radical like a new design, just laid it on it's side. This is obviously going to help with center of gravity issues. Must thank JasonInAugusta again on this one, he has been pestering me for a week to lay the tranny on it's side like this

. Anyway, went ahead and did that and also shortened the case height wise once it was in the new location. Took off .437 on the portion that is now the top. The case will be enclosed with some sort of Lexan once I am done taking it apart every 3 hours :-). Made another output shaft that turned out perfect for use with the Revos. Not looking forward to munching those Force pinions down at all. Appears the Revo shafts will have to be shortened to get 'em squeezed in there. Don't be alarmed when you look at the pics. It is getting pretty crammed in there now with a tranny, motor, driveshafts etc. Not to worry, plenty of room between the motor and the rear shaft. Not much but shouldn't be an issue. Maybe over the weekend I'll do the Force pinions and get the shafts set up and installed as they will need to be worked around for steering parts. Steering pieces should be here Thursday as stated previous, Friday will be more steering parts if all goes well. Once steering is done (front and rear), driveshafts installed, and tranny case enclosed it will be off to the electronics department. Currently researching smaller ESC's that are comparable to a Super Rooster. Possibly an LRP but still looking, dunno much about 'em. Will be using either a stock 540 motor, Multi-Plex 600 like my TXT or a 55 turn Integy lathe motor if I can find one! Anyway, few pics up to the truck's current status.

RCALLOYS · 02-11-2005, 03:02 PM

Hello all.
Pieces for my steering arrived Thursday as I had guessed. Started on the front steering set up today. The idea is pretty much complete, just have to invent a slider type steering shaft set up as it cannot be solid. Wanted to get it all mocked up today to see where stuff was going to end up. This way should be able to design some sort of slider shaft or collapsible shaft. Anywho, what has been done here is a remote mounted servo. Couple of precision miniature u-joints (.250 body dia) and .156 "01" rod for steering shaft material. Will be using a modified TXT axle for it's splines to drive a standard servo horn/arm. This idea all works on paper and now that it is somewhat together, it works but have got to have a slider shaft. Servo will be placed where the output of it (horn) will be centered left to right in the chassis. This allows for a straight shot (from servo to axle) and should have full movement of u-joints if required. Anywho, this is the steering set up I've been working on. I am sure many will have doubts of it working but we're almost 95% sure it will. Cannot be sure how efficient will be though. Main concern is torque loss through the u-joints and linear length of steering shaft. Soon as a slider system is invented we'll see how well the entire system works out. For now, few pics (6)

badhoopty · 02-11-2005, 03:09 PM

ummmm, like, wow....

rbgerrish · 02-11-2005, 03:10 PM

Holy Diver! Amazing. The quality is incredible, and you've got some awesome design ideas going there. I cant wait to see how it works!

badhoopty · 02-11-2005, 03:11 PM

and hey, 1/4 scale servos are pretty strong...

Grizzly4x4 · 02-11-2005, 04:46 PM

Good grief!!!

I am in awe Bill.....Nice werk.

Jeeper · 02-11-2005, 05:20 PM

very cool. how much clearance do you have under the center skid?

Frkan · 02-11-2005, 06:11 PM

That is ingenious

WRMorrison · 02-11-2005, 06:17 PM

Bill, you've outdone yourself once again. BRAVO!!!

WRMorrison · 02-11-2005, 06:19 PM

FYI, you now have "subfolders" (chassis, axles, tranny, steering...

)

Highmark · 02-11-2005, 06:42 PM

That stearing system is like 20 degrees of bitchin'

I remeber Thor did a simmiler set-up on his Baja bruiser when he was building it but eventualy went to the servo on the axle set-up later on.

hcfr34 · 02-11-2005, 07:38 PM

Very nice looking setup

JasonInAugusta · 02-11-2005, 07:52 PM

This is the type of crap that happens when Bill and I spend all night on AIM.

RCALLOYS · 02-11-2005, 08:09 PM

WHOA, thanks for the replies everyone. Thought this might brighten up the progress of the project a little bit. Happy to hear/see everyone seems to think it is a slick idea. I am anxious to figure out a slider for the steering shaft and get it finished up. If this works out, rear steer will be the same. Rear steer servo will be in a slightly different location though. Gotta order up some rod ends and such to build up the steering links as I do not have any here! Should have enough to hobble it together to check everything out though. Hoping this all goes smoothly because if it does, it is off to the electronics department :-)

WRMorrison: Hee hee, I have subfolders now eh? Nice.....I ended up doing the same thing here for pics and drawings........was getting confused.

JasonInAugusta: Uh huh.......and you thought all these hours on AIM were fer nuffin

twisted84toyota · 02-12-2005, 12:51 AM

Bill you are a genius it looks killer how does it work? will it crank the tires?

i guess now all the GD 600 orders will be for Bill amazing steering box for cranking KONGS

RCALLOYS · 02-12-2005, 07:18 AM

Hello all
Far as this system cranking the tires, it should. From what I understand, servos are rated for torque at the end of a 1 inch servo arm. This requires less torque as the farther away from center, the more leverage there is. Consider my system is on center, it may surprise us. Should know later next week as I have to order one more little piece to complete this. Going to first try my Hi Tec 645 which I believe is rated at 155 in/oz @6V. Was going to use it for the rear and go for a 200 in/oz for front steer. However if being on center provides more torque, it won't require a high dollar servo. Eh, we'll see. Glad everyone is intriqued by the idea.
Now, the GD600 idea to gear the servo down...........actually fiddled with that idea

. Might look into it once everything is together. Of course it would be on a much smaller scale than the GD's.

stlcrawler · 02-12-2005, 09:17 AM

Are you going to use any kind of a bearing at the axle? That long rod should act like a servo saver. So there are uses for stocl TXT-1 drive shafts after all, the u joints.

RCALLOYS · 02-12-2005, 01:30 PM

There will be a bearing of sorts at the axle there for the steer shaft to go through yes. Far as the long rod acting as a servo saver.......I doubt it. Material is precision ground oil hardened drill rod, or "01" as it is called. Highly doubt it will twist

. Also, not using TXT u-joints in this system.....only using the end of the shaft that is splined.
On another note, just ordered the pieces needed to complete this little package. Sux, gotta wait until probably the 18th before anything else can be done as I'll be waiting for those parts. :-(

badtodabone · 02-12-2005, 02:08 PM

awesome i am amazed

I B RACIN · 02-13-2005, 01:44 AM

You still have an arm at the end of the shaft, the servo don't care where it is.

And are you goin to get the upper rod ends on the axle turned the right way?

Very very nice truck.....

I B..

02-09-2005, 12:57 PM	#81
RCALLOYS Quarry Creeper Join Date: Sep 2004 Location: St.Louis, MO. Posts: 369	Mild Update Again. Hello All Well, we've decided to rearrange the transmission. Nothing radical like a new design, just laid it on it's side. This is obviously going to help with center of gravity issues. Must thank JasonInAugusta again on this one, he has been pestering me for a week to lay the tranny on it's side like this . Anyway, went ahead and did that and also shortened the case height wise once it was in the new location. Took off .437 on the portion that is now the top. The case will be enclosed with some sort of Lexan once I am done taking it apart every 3 hours :-). Made another output shaft that turned out perfect for use with the Revos. Not looking forward to munching those Force pinions down at all. Appears the Revo shafts will have to be shortened to get 'em squeezed in there. Don't be alarmed when you look at the pics. It is getting pretty crammed in there now with a tranny, motor, driveshafts etc. Not to worry, plenty of room between the motor and the rear shaft. Not much but shouldn't be an issue. Maybe over the weekend I'll do the Force pinions and get the shafts set up and installed as they will need to be worked around for steering parts. Steering pieces should be here Thursday as stated previous, Friday will be more steering parts if all goes well. Once steering is done (front and rear), driveshafts installed, and tranny case enclosed it will be off to the electronics department. Currently researching smaller ESC's that are comparable to a Super Rooster. Possibly an LRP but still looking, dunno much about 'em. Will be using either a stock 540 motor, Multi-Plex 600 like my TXT or a 55 turn Integy lathe motor if I can find one! Anyway, few pics up to the truck's current status.

02-11-2005, 03:02 PM	#82
RCALLOYS Quarry Creeper Join Date: Sep 2004 Location: St.Louis, MO. Posts: 369	Steering Parts Hello all. Pieces for my steering arrived Thursday as I had guessed. Started on the front steering set up today. The idea is pretty much complete, just have to invent a slider type steering shaft set up as it cannot be solid. Wanted to get it all mocked up today to see where stuff was going to end up. This way should be able to design some sort of slider shaft or collapsible shaft. Anywho, what has been done here is a remote mounted servo. Couple of precision miniature u-joints (.250 body dia) and .156 "01" rod for steering shaft material. Will be using a modified TXT axle for it's splines to drive a standard servo horn/arm. This idea all works on paper and now that it is somewhat together, it works but have got to have a slider shaft. Servo will be placed where the output of it (horn) will be centered left to right in the chassis. This allows for a straight shot (from servo to axle) and should have full movement of u-joints if required. Anywho, this is the steering set up I've been working on. I am sure many will have doubts of it working but we're almost 95% sure it will. Cannot be sure how efficient will be though. Main concern is torque loss through the u-joints and linear length of steering shaft. Soon as a slider system is invented we'll see how well the entire system works out. For now, few pics (6)

02-12-2005, 07:18 AM	#96
RCALLOYS Quarry Creeper Join Date: Sep 2004 Location: St.Louis, MO. Posts: 369	Hello all Far as this system cranking the tires, it should. From what I understand, servos are rated for torque at the end of a 1 inch servo arm. This requires less torque as the farther away from center, the more leverage there is. Consider my system is on center, it may surprise us. Should know later next week as I have to order one more little piece to complete this. Going to first try my Hi Tec 645 which I believe is rated at 155 in/oz @6V. Was going to use it for the rear and go for a 200 in/oz for front steer. However if being on center provides more torque, it won't require a high dollar servo. Eh, we'll see. Glad everyone is intriqued by the idea. Now, the GD600 idea to gear the servo down...........actually fiddled with that idea . Might look into it once everything is together. Of course it would be on a much smaller scale than the GD's. Last edited by RCALLOYS; 02-15-2005 at 09:55 PM.

02-11-2005, 03:09 PM	#83
badhoopty Moderator Join Date: Jan 2004 Location: chicago Posts: 2,814	ummmm, like, wow....

02-11-2005, 03:10 PM	#84
rbgerrish I wanna be Dave Join Date: Mar 2004 Location: The Haunted Forest Posts: 3,586	Holy Diver! Amazing. The quality is incredible, and you've got some awesome design ideas going there. I cant wait to see how it works!

02-11-2005, 03:11 PM	#85
badhoopty Moderator Join Date: Jan 2004 Location: chicago Posts: 2,814	and hey, 1/4 scale servos are pretty strong...

02-11-2005, 04:46 PM	#86
Grizzly4x4 PapaGriz Yo Join Date: Apr 2004 Location: In the garage building the wife a crawler Posts: 13,137	Good grief!!! I am in awe Bill.....Nice werk.

02-11-2005, 05:20 PM	#87
Jeeper Rock Stacker Join Date: Aug 2004 Location: wasatch front Posts: 77	very cool. how much clearance do you have under the center skid?

02-11-2005, 06:11 PM	#88
Frkan Quarry Creeper Join Date: Jan 2005 Location: Crafty mexicans and your glass candy... Posts: 216	That is ingenious

02-11-2005, 06:17 PM	#89
WRMorrison Rock Crawler Join Date: Dec 2004 Location: Land of the Free, because of the Brave Posts: 891	Bill, you've outdone yourself once again. BRAVO!!!

02-11-2005, 06:19 PM	#90
WRMorrison Rock Crawler Join Date: Dec 2004 Location: Land of the Free, because of the Brave Posts: 891	FYI, you now have "subfolders" (chassis, axles, tranny, steering... )

02-11-2005, 06:42 PM	#91
Highmark I wanna be Dave Join Date: Jan 2004 Location: Austin Texas Posts: 3,866	That stearing system is like 20 degrees of bitchin' I remeber Thor did a simmiler set-up on his Baja bruiser when he was building it but eventualy went to the servo on the axle set-up later on.

02-11-2005, 07:38 PM	#92
hcfr34 Quarry Creeper Join Date: Dec 2004 Location: Tampa, Fl Posts: 226	Very nice looking setup

Sponsored Links

02-11-2005, 07:52 PM	#93
JasonInAugusta 06 Super National Champ Join Date: Jun 2004 Location: Stark Industries Bar and Grill Posts: 11,361	This is the type of crap that happens when Bill and I spend all night on AIM.

02-11-2005, 08:09 PM	#94
RCALLOYS Quarry Creeper Join Date: Sep 2004 Location: St.Louis, MO. Posts: 369	WHOA, thanks for the replies everyone. Thought this might brighten up the progress of the project a little bit. Happy to hear/see everyone seems to think it is a slick idea. I am anxious to figure out a slider for the steering shaft and get it finished up. If this works out, rear steer will be the same. Rear steer servo will be in a slightly different location though. Gotta order up some rod ends and such to build up the steering links as I do not have any here! Should have enough to hobble it together to check everything out though. Hoping this all goes smoothly because if it does, it is off to the electronics department :-) WRMorrison: Hee hee, I have subfolders now eh? Nice.....I ended up doing the same thing here for pics and drawings........was getting confused. JasonInAugusta: Uh huh.......and you thought all these hours on AIM were fer nuffin

02-12-2005, 12:51 AM	#95
twisted84toyota Quarry Creeper Join Date: Nov 2004 Location: Frayed ends of sanity Posts: 400	Bill you are a genius it looks killer how does it work? will it crank the tires? i guess now all the GD 600 orders will be for Bill amazing steering box for cranking KONGS

02-12-2005, 09:17 AM	#97
stlcrawler Rock Stacker Join Date: Jan 2005 Location: Saint Louis MO Posts: 58	Are you going to use any kind of a bearing at the axle? That long rod should act like a servo saver. So there are uses for stocl TXT-1 drive shafts after all, the u joints.

02-12-2005, 01:30 PM	#98
RCALLOYS Quarry Creeper Join Date: Sep 2004 Location: St.Louis, MO. Posts: 369	There will be a bearing of sorts at the axle there for the steer shaft to go through yes. Far as the long rod acting as a servo saver.......I doubt it. Material is precision ground oil hardened drill rod, or "01" as it is called. Highly doubt it will twist . Also, not using TXT u-joints in this system.....only using the end of the shaft that is splined. On another note, just ordered the pieces needed to complete this little package. Sux, gotta wait until probably the 18th before anything else can be done as I'll be waiting for those parts. :-(

02-12-2005, 02:08 PM	#99
badtodabone bendforthebone Join Date: Feb 2004 Location: Jamul Posts: 680	awesome i am amazed

02-13-2005, 01:44 AM	#100
I B RACIN Quarry Creeper Join Date: Feb 2005 Location: Lake Tapps, Washington Posts: 225	You still have an arm at the end of the shaft, the servo don't care where it is. And are you goin to get the upper rod ends on the axle turned the right way? Very very nice truck..... I B..

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