RCCrawler Forums

jeepguy · 09-19-2005, 09:24 PM

o.k., i slapped on a standard servo after rewiring it for a 2 wire direct to motor setup to the stock electronics.. it works but it is too fast so i am going to get some resistors to slow it down.. took it out on the rocks & it worked pretty good.. it will be better with slower turning.
only thing i dont have now is straight(lock left or right), but i think with it running slower i can stop it wherever i want to.
it is now high steer using electrical crimp on connectors(soldered on) onto pushrods from an airplane linkage setup. one side threaded on & i had to solder other side//i spaced on 1 side for the draglink to knuckle..

JasonInAugusta · 09-19-2005, 09:47 PM

So you took a proportional servo and you're using it in a non-proportional manner?

Why not wire the stock motor to the motor outputs of the servo control board? ;)

You'd still need to figure out how to get the steering to self-center (if you use stock gears and return spring this wouldn't be an issue) but other than that...I kinda think the motor would want to keep running. A pot on the steering link would fix that.

Of course you'd need a hobby grade radio system to do this, but I think it'd work.

Thought about trying it, but haven't had the time.

jeepguy · 09-20-2005, 08:28 AM

i'm gonna put some resistors on it to slow it down. then it will just stop wherever i let off. so if i stop in center or right or left it will stay there..i eliminated everything electrical in the servo so its wired just like the stock motor was. this way i get rid of all that low crap on front of axle. i set up the servo like you did on yours//(just a little more redneck style)lack of proper parts

jeepguy · 09-20-2005, 08:56 PM

http://img357.imageshack.us/my.php?i...csteer12mn.jpglets see if this works?

white fuzzy stuff on servo is servo tape from when it lived on 1 of my many coragated plastic sign airplanes.
thin aluminum flat plate cut with tin snips..
white fuzzy stuff on wheel is where the electrical connector scrapes a little.

jeepguy · 09-25-2005, 05:41 PM

ok//3-- 10 ohm 1 watt resistors wired in series & it works awsome!!
stock radio with a real servo// it moves slower than stock & does not self center,which is good for a slow crawl//it steers very well and is easy to control//
did a full battery run on this thing with no problems..
i am very happy with it now//i am going to start thinking about a new draglink & tie rod though//beefier.
i really did not think my setup would hold up on the rocks//but i bashed it against rocks a bunch without a problem..
now if i could rewire the dang throttle control???

hoosierdadi · 11-25-2005, 12:55 PM

Can someone explain how this was wired?

My stock nylint has 2 wires to the steering motor, yellow and blue. But the spare servo's I have lying around all have 3 wires, red/white/black.

If I wanted to wire up a proportional servo into the stock electronics, what happens to the third servo wire?

Thanks.

-jpl

RIVERdude69 · 11-25-2005, 01:16 PM

i was wrong:neutral:

Toyminator · 11-25-2005, 01:37 PM

The third wire is the feedback signal that tells TX what position the servo is in. Without it, the servo will no longer be proportional. Not worth the effort involved for no real benefit in my opinion.

hoosierdadi · 11-25-2005, 03:58 PM

Well... I've been waiting 7 weeks now for my replacement from Nylint, so for me it's worth it.

I've got some spare servos already, and I'd figured I'd give it a shot. Besides, if you've never done it, how do you know if it's worth it or not?

I'm guessing the white wire is the feedback wire?

Toyminator · 11-25-2005, 05:43 PM

Quote:

Originally Posted by hoosierdadi

Well... I've been waiting 7 weeks now for my replacement from Nylint, so for me it's worth it.

I've got some spare servos already, and I'd figured I'd give it a shot. Besides, if you've never done it, how do you know if it's worth it or not?

I'm guessing the white wire is the feedback wire?

I have done it. That's how I know it sucks. There's no way to trim the steering, the servos stall everytime they hit the steering limit, and there is no return to center. Servo's are not designed for this and will probably fail fairly quickly in a high torque application like this.

If your servo's are Futaba's, then yes the white wire is the feedback signal.

jeepguy · 11-26-2005, 08:24 AM

ok,

1.take your stock servo apart
2.disconnect all wiring inside servo but leave a tail on your servo motor(wire)toss servo lead!!into garbage can, or save for whatever.
3. purchase 3- 10 ohm resistors(a 30 ohm should work but all i could find were 10 ohmers)
4. hook it up so you can see which way the wires need to connect(you now only have 2 from servo & 2 from nylint)
5.once you have figured which way to wire it(only 2 choices here) solder one side together, then wire in the resistors in SERIES(end to end,so they are like sausage links) & solder other lead together..
6. bolt on servo
7. make final adjustment
8. wheel

the steering will stop when you let off the control, my wrangle doesnt return to center when i let go of the steering wheel so why does it matter if this thing does??
i have plenty of turning power with mine.
& if you want it to have tons of power & turn really fast then only use 2 resistors!!

i dont think it would work well if its not wired directly to the motor, i am assumining that toyminator wired to the servo leads & not the motor(i could be wrong) you have to bypass all the electronics in the servo for this to work.
i ran man HARD & LONG with no servo damage, & it works great!!

Turboduck01 · 12-26-2005, 05:17 PM

any chance of some pictures going with this possibly? I'm talking about the three wires for a stock servo and getting it to function with 2 wires... im lost. maybe more detail for noobs like me? : )

WFlaw45 · 12-26-2005, 05:36 PM

do they make 2 wire servos?

jeepguy · 12-26-2005, 05:50 PM

open up the servo & the servo motor has 2 wires attached to it.

you iliminate all wiring except for the 2 wires attached directly to the servo motor.
it will be wired just like the nylint steering motor was.

motor in servo attached directly to one wire from nylint. the other swide of motor attached to 3 resistors in series to other wire from nylint.
it is very simple, you just need to open up the servo & rip out the electronic board & 3 wire harness.
let me know if you need more info!!

Turboduck01 · 12-26-2005, 09:40 PM

jeepguy, thanks a lot for the reply! I think that clarified things greatly! thank you

WFlaw45 · 12-27-2005, 03:18 AM

another question, what did you use for your "hiem joints"

jeepguy · 12-27-2005, 08:55 AM

for the rod ends i used electrical crimp on connectors & rc airplane pushrod.
one end screwed on & the other end i had to crimp & solder.
you might be able to use the stock tie rod & just build a draglink from servo to one knuckle.

jeepguy · 01-08-2006, 09:19 PM

it also looks like some servo motors are connected directly to the board.

so you will need to figure out where they connect & solder the 2 leads from yur nylint there(thanx bowtie)
i would recommend cutting the leads from motor to rest of board maybe also. but it might not even make any difference since it is parallel with the new leads.

BOWTIE · 01-08-2006, 09:37 PM

i'll post this pic here aswell

i still have mine this way with no problems.

jeepguy · 01-08-2006, 11:13 PM

thanx, i was gonna try & hijack that pic!! but i hadnt got to play battlefield 2 for 2 weeks cause i was workin all the time.so i did that & drank beer instead!!

looks like it works fine that way.
sll my servos that i tore apart were way old.

09-19-2005, 09:24 PM	#1
jeepguy Quarry Creeper Join Date: Aug 2005 Location: crescent city Posts: 304	servo & stock radio o.k., i slapped on a standard servo after rewiring it for a 2 wire direct to motor setup to the stock electronics.. it works but it is too fast so i am going to get some resistors to slow it down.. took it out on the rocks & it worked pretty good.. it will be better with slower turning. only thing i dont have now is straight(lock left or right), but i think with it running slower i can stop it wherever i want to. it is now high steer using electrical crimp on connectors(soldered on) onto pushrods from an airplane linkage setup. one side threaded on & i had to solder other side//i spaced on 1 side for the draglink to knuckle.. Last edited by jeepguy; 09-20-2005 at 02:34 PM.

09-20-2005, 08:56 PM	#4
jeepguy Quarry Creeper Join Date: Aug 2005 Location: crescent city Posts: 304	http://img357.imageshack.us/my.php?i...csteer12mn.jpglets see if this works? white fuzzy stuff on servo is servo tape from when it lived on 1 of my many coragated plastic sign airplanes. thin aluminum flat plate cut with tin snips.. white fuzzy stuff on wheel is where the electrical connector scrapes a little. Last edited by jeepguy; 09-20-2005 at 09:09 PM.

11-25-2005, 01:16 PM	#7
RIVERdude69 Pebble Pounder Join Date: Jul 2005 Location: florida Posts: 156	i was wrong:neutral: Last edited by RIVERdude69; 11-25-2005 at 01:51 PM.

12-26-2005, 05:50 PM	#14
jeepguy Quarry Creeper Join Date: Aug 2005 Location: crescent city Posts: 304	open up the servo & the servo motor has 2 wires attached to it. you iliminate all wiring except for the 2 wires attached directly to the servo motor. it will be wired just like the nylint steering motor was. motor in servo attached directly to one wire from nylint. the other swide of motor attached to 3 resistors in series to other wire from nylint. it is very simple, you just need to open up the servo & rip out the electronic board & 3 wire harness. let me know if you need more info!! Last edited by jeepguy; 12-26-2005 at 05:55 PM.

09-19-2005, 09:47 PM	#2
JasonInAugusta 06 Super National Champ Join Date: Jun 2004 Location: Stark Industries Bar and Grill Posts: 11,361	So you took a proportional servo and you're using it in a non-proportional manner? Why not wire the stock motor to the motor outputs of the servo control board? ;) You'd still need to figure out how to get the steering to self-center (if you use stock gears and return spring this wouldn't be an issue) but other than that...I kinda think the motor would want to keep running. A pot on the steering link would fix that. Of course you'd need a hobby grade radio system to do this, but I think it'd work. Thought about trying it, but haven't had the time.

09-20-2005, 08:28 AM	#3
jeepguy Quarry Creeper Join Date: Aug 2005 Location: crescent city Posts: 304	i'm gonna put some resistors on it to slow it down. then it will just stop wherever i let off. so if i stop in center or right or left it will stay there..i eliminated everything electrical in the servo so its wired just like the stock motor was. this way i get rid of all that low crap on front of axle. i set up the servo like you did on yours//(just a little more redneck style)lack of proper parts

09-25-2005, 05:41 PM	#5
jeepguy Quarry Creeper Join Date: Aug 2005 Location: crescent city Posts: 304	ok//3-- 10 ohm 1 watt resistors wired in series & it works awsome!! stock radio with a real servo// it moves slower than stock & does not self center,which is good for a slow crawl//it steers very well and is easy to control// did a full battery run on this thing with no problems.. i am very happy with it now//i am going to start thinking about a new draglink & tie rod though//beefier. i really did not think my setup would hold up on the rocks//but i bashed it against rocks a bunch without a problem.. now if i could rewire the dang throttle control???

11-25-2005, 12:55 PM	#6
hoosierdadi Newbie Join Date: May 2005 Location: Mile Square Posts: 5	Can someone explain how this was wired? My stock nylint has 2 wires to the steering motor, yellow and blue. But the spare servo's I have lying around all have 3 wires, red/white/black. If I wanted to wire up a proportional servo into the stock electronics, what happens to the third servo wire? Thanks. -jpl

11-25-2005, 01:37 PM	#8
Toyminator Newbie Join Date: Aug 2005 Location: Anchorage Posts: 9	The third wire is the feedback signal that tells TX what position the servo is in. Without it, the servo will no longer be proportional. Not worth the effort involved for no real benefit in my opinion.

11-25-2005, 03:58 PM	#9
hoosierdadi Newbie Join Date: May 2005 Location: Mile Square Posts: 5	Well... I've been waiting 7 weeks now for my replacement from Nylint, so for me it's worth it. I've got some spare servos already, and I'd figured I'd give it a shot. Besides, if you've never done it, how do you know if it's worth it or not? I'm guessing the white wire is the feedback wire?

11-26-2005, 08:24 AM	#11
jeepguy Quarry Creeper Join Date: Aug 2005 Location: crescent city Posts: 304	ok, 1.take your stock servo apart 2.disconnect all wiring inside servo but leave a tail on your servo motor(wire)toss servo lead!!into garbage can, or save for whatever. 3. purchase 3- 10 ohm resistors(a 30 ohm should work but all i could find were 10 ohmers) 4. hook it up so you can see which way the wires need to connect(you now only have 2 from servo & 2 from nylint) 5.once you have figured which way to wire it(only 2 choices here) solder one side together, then wire in the resistors in SERIES(end to end,so they are like sausage links) & solder other lead together.. 6. bolt on servo 7. make final adjustment 8. wheel the steering will stop when you let off the control, my wrangle doesnt return to center when i let go of the steering wheel so why does it matter if this thing does?? i have plenty of turning power with mine. & if you want it to have tons of power & turn really fast then only use 2 resistors!! i dont think it would work well if its not wired directly to the motor, i am assumining that toyminator wired to the servo leads & not the motor(i could be wrong) you have to bypass all the electronics in the servo for this to work. i ran man HARD & LONG with no servo damage, & it works great!!

12-26-2005, 05:17 PM	#12
Turboduck01 Rock Stacker Join Date: Sep 2005 Location: Ridgecrest Posts: 92	any chance of some pictures going with this possibly? I'm talking about the three wires for a stock servo and getting it to function with 2 wires... im lost. maybe more detail for noobs like me? : )

12-26-2005, 05:36 PM	#13
WFlaw45 Newbie Join Date: Nov 2005 Location: chapel hil Posts: 28	do they make 2 wire servos?

12-26-2005, 09:40 PM	#15
Turboduck01 Rock Stacker Join Date: Sep 2005 Location: Ridgecrest Posts: 92	jeepguy, thanks a lot for the reply! I think that clarified things greatly! thank you

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12-27-2005, 03:18 AM	#16
WFlaw45 Newbie Join Date: Nov 2005 Location: chapel hil Posts: 28	another question, what did you use for your "hiem joints"

12-27-2005, 08:55 AM	#17
jeepguy Quarry Creeper Join Date: Aug 2005 Location: crescent city Posts: 304	for the rod ends i used electrical crimp on connectors & rc airplane pushrod. one end screwed on & the other end i had to crimp & solder. you might be able to use the stock tie rod & just build a draglink from servo to one knuckle.

01-08-2006, 09:19 PM	#18
jeepguy Quarry Creeper Join Date: Aug 2005 Location: crescent city Posts: 304	it also looks like some servo motors are connected directly to the board. so you will need to figure out where they connect & solder the 2 leads from yur nylint there(thanx bowtie) i would recommend cutting the leads from motor to rest of board maybe also. but it might not even make any difference since it is parallel with the new leads.

01-08-2006, 09:37 PM	#19
BOWTIE Ultimate RC Decals Join Date: Aug 2005 Location: San Antonio Posts: 3,761	i'll post this pic here aswell i still have mine this way with no problems.

01-08-2006, 11:13 PM	#20
jeepguy Quarry Creeper Join Date: Aug 2005 Location: crescent city Posts: 304	thanx, i was gonna try & hijack that pic!! but i hadnt got to play battlefield 2 for 2 weeks cause i was workin all the time.so i did that & drank beer instead!! looks like it works fine that way. sll my servos that i tore apart were way old.

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