RCCrawler Forums

xtremraptor · 01-04-2006, 03:30 AM

this thread ROCKS!!!8-)

with all the pics and diagrams i was able to easily do my own conversion.

THANX everyone

xtremraptor · 01-04-2006, 03:32 AM

last two

Frakk · 01-04-2006, 09:07 AM

why did you put the switch on the top?

xtremraptor · 01-04-2006, 05:17 PM

i drive the wheel with my left hand (duh...i know) and would straddle that switch in between the thumb and forefinger. i thought it would be easy to just hit the switch with a little twist of the wrist. i may have to move it if the action isn't as smooth as i think it will be.

i also thought of moving it down the side in front of the wheel. that way i could just flip it with the fingers i'm not using on the wheel.

ILoveRCRockCrawlin · 01-14-2006, 06:10 PM

I got a few questions. First off; will 1k pots work? I went out and bout 2 for doing the indi steer. Another question is if I wanted an on/off switch for the rear steer, how would I wire that in, and would it center out if I were to do that?

And is there a 'lil more detailed wiring diagram somewhere?

cosmo · 02-09-2006, 04:37 PM

hi,
i went through these tq3 topics, but couldnt find any info how could i mix ch1 and ch3 with a switch. maybe because of my language barrier / im from hungary / ,
i picked up a tq3 for this reason, but found out that with stock settings it cant be done
i think it would be hard to me to controll the rear wheels independantly, i would prefer them to move together with the front wheels
i apologise if i posted this in a wrong topic

FritoBandito · 02-09-2006, 06:18 PM

Quote:

Originally Posted by cosmo

hi,
i went through these tq3 topics, but couldnt find any info how could i mix ch1 and ch3 with a switch. maybe because of my language barrier / im from hungary / ,
i picked up a tq3 for this reason, but found out that with stock settings it cant be done
i think it would be hard to me to controll the rear wheels independantly, i would prefer them to move together with the front wheels
i apologise if i posted this in a wrong topic

There are Y cables that you can get that'll do that for you. No transmitter modification necessary. You just plug the Y cable into channel 1 on your receiver and your two servos into the Y cable. Then the cable reverses the signal on one of the servos and there you have it.

nd4spdbh · 02-09-2006, 07:59 PM

Yup... a Splitter pluss a reverser will do you just fine... But i think you will be alot happier with indepented rear wheel steering. I was leery at first and it took me all of about 2 batteries to get how to use it. Plus you realize the pluses with it. Also if you wanted to mod ur controler to mix the 2 channels you would have to do some crazy circuitry... overly complicated and useless.

Ben

(Sup FritoBandito)

Frakk · 02-09-2006, 08:15 PM

cant you just have a switch, when on, channel 3 will use the front steering pot (hence mixes the two channels), when off, it switches to the rear steering pot?

FritoBandito · 02-09-2006, 08:19 PM

Quote:

Originally Posted by Frakk

cant you just have a switch, when on, channel 3 will use the front steering pot (hence mixes the two channels), when off, it switches to the rear steering pot?

Sure but that switch would have to be on the crawler itself.

Frakk · 02-09-2006, 08:35 PM

I think it would work on the transmitter itself. Ill try it when Ill have some time on my hand.

nd4spdbh · 02-10-2006, 07:23 AM

you could.... but then you got to factor in when you put 2 channels on one pot u have to increase the ohm rating by 2.... so instead of a 5k you would need a 10k for 2 channels and then when you switch off you need a5k pot.

Frakk · 02-10-2006, 12:51 PM

you would only increase the current, because the two channels are parallel. the voltage would remain the same. The ohm rating of the pot only determines the end points of that channel (lower resistance means less travel) because it acts as a voltage divider, and the signal transmitted is proportional to these two voltages and their difference between the trim pot.

shutupanddrive · 02-14-2006, 02:02 PM

Has anyone found any sort of self-centering pot with a knob to use in place of the 3 position switch to provide proportional independent rear steering instead of the full left/center/full right? I've been digging around on the net but haven't found anything yet. Lots of pots have knobs, but I can't find anything that is self-centering.

Frakk · 02-18-2006, 12:33 PM

you will just have to get used to centering them.

shutupanddrive · 02-18-2006, 08:49 PM

I'm on it. it will take me a little while to find all the parts I need and get everything operating properly, but I've figured out a couple of different methods that might prove to work well. I'll report back when I have pics and something to show. I'm juggling too many projects right now like an idiot. I always end up doing that

cosmo · 02-19-2006, 01:54 PM

hi
thanks for everyhing, i got used to with the 3way switch in 20min, works excellent

mattnin · 02-25-2006, 10:19 PM

Well I just found out that 1k pots just do not adjust the end points enough for the hitec 5955 digital servos. Rat shack doesn't have any 2.5k or higher submini pots! grrrrr.

I must say though, this thread saved me some bling before I was gonna throw money away on another transmitter. This radio works actually quite well this way. I installed the front and rear steering epa pots.

Once again, everything was easy to do except fit all the dang wires in there! grrrrrr. People, if you haven't done this mod yet, take special notice of wires and their routes, etc..... Real estate is at a premium in this transmitter.

bipolarcrawler · 02-27-2006, 02:05 PM

"cosmohi,
i went through these tq3 topics, but couldnt find any info how could i mix ch1 and ch3 with a switch. maybe because of my language barrier / im from hungary / ,
i picked up a tq3 for this reason, but found out that with stock settings it cant be done
i think it would be hard to me to controll the rear wheels independantly, i would prefer them to move together with the front wheels
i apologise if i posted this in a wrong topic"

1: cosmo these type y harnesses are commenly used on airplanes to work the flaps.mine is horizon hobby y harness reverser standard.item# #exra320.horizonhobby.com .but if your controler doesnt have servo speed adj. it is realy weird to drive...turns to fast.

2:question,can you wire the pot between the servo and rx in the truck?or does it have to be at the switch in the controller?just a thought,if it works you wouldnt have the space problem as with the controler.sorry if this was covered and i missed it,but i didnt see anything.

trost · 05-03-2006, 02:58 PM

Quote:

Originally Posted by FritoBandito

Be careful what you wish for! Learn how to solder and pretty soon you're doing it for all your friends, and their friends, and so on..

Yea its crazy, ill have kids commin up to me in the hauls at school sayin '''hey some one told me you can solder can you help me with some leds...'''lol welding if fun to but If you can weld ark,tig,mig what ever soldering isent too bad

01-04-2006, 03:30 AM	#101
xtremraptor Quarry Creeper Join Date: Nov 2005 Location: fairfax Posts: 226	this thread ROCKS!!!8-) with all the pics and diagrams i was able to easily do my own conversion. THANX everyone Attached Images

01-04-2006, 03:32 AM	#102
xtremraptor Quarry Creeper Join Date: Nov 2005 Location: fairfax Posts: 226	last two Attached Images

01-14-2006, 06:10 PM	#105
ILoveRCRockCrawlin RCC Addict Join Date: Dec 2004 Location: Central NY Posts: 1,980	I got a few questions. First off; will 1k pots work? I went out and bout 2 for doing the indi steer. Another question is if I wanted an on/off switch for the rear steer, how would I wire that in, and would it center out if I were to do that? And is there a 'lil more detailed wiring diagram somewhere? Last edited by ILoveRCRockCrawlin; 01-14-2006 at 06:14 PM.

01-04-2006, 09:07 AM	#103
Frakk Pebble Pounder Join Date: Sep 2005 Location: Canada Posts: 171	why did you put the switch on the top?

01-04-2006, 05:17 PM	#104
xtremraptor Quarry Creeper Join Date: Nov 2005 Location: fairfax Posts: 226	i drive the wheel with my left hand (duh...i know) and would straddle that switch in between the thumb and forefinger. i thought it would be easy to just hit the switch with a little twist of the wrist. i may have to move it if the action isn't as smooth as i think it will be. i also thought of moving it down the side in front of the wheel. that way i could just flip it with the fingers i'm not using on the wheel.

02-09-2006, 04:37 PM	#106
cosmo Newbie Join Date: Dec 2005 Location: hungary Posts: 5	hi, i went through these tq3 topics, but couldnt find any info how could i mix ch1 and ch3 with a switch. maybe because of my language barrier / im from hungary / , i picked up a tq3 for this reason, but found out that with stock settings it cant be done i think it would be hard to me to controll the rear wheels independantly, i would prefer them to move together with the front wheels i apologise if i posted this in a wrong topic

02-09-2006, 07:59 PM	#108
nd4spdbh Rock Crawler Join Date: Mar 2005 Location: Dude on my dirt bike in SoCal!!! Posts: 949	Yup... a Splitter pluss a reverser will do you just fine... But i think you will be alot happier with indepented rear wheel steering. I was leery at first and it took me all of about 2 batteries to get how to use it. Plus you realize the pluses with it. Also if you wanted to mod ur controler to mix the 2 channels you would have to do some crazy circuitry... overly complicated and useless. Ben (Sup FritoBandito)

02-09-2006, 08:15 PM	#109
Frakk Pebble Pounder Join Date: Sep 2005 Location: Canada Posts: 171	cant you just have a switch, when on, channel 3 will use the front steering pot (hence mixes the two channels), when off, it switches to the rear steering pot?

02-09-2006, 08:35 PM	#111
Frakk Pebble Pounder Join Date: Sep 2005 Location: Canada Posts: 171	I think it would work on the transmitter itself. Ill try it when Ill have some time on my hand.

02-10-2006, 07:23 AM	#112
nd4spdbh Rock Crawler Join Date: Mar 2005 Location: Dude on my dirt bike in SoCal!!! Posts: 949	you could.... but then you got to factor in when you put 2 channels on one pot u have to increase the ohm rating by 2.... so instead of a 5k you would need a 10k for 2 channels and then when you switch off you need a5k pot.

02-10-2006, 12:51 PM	#113
Frakk Pebble Pounder Join Date: Sep 2005 Location: Canada Posts: 171	you would only increase the current, because the two channels are parallel. the voltage would remain the same. The ohm rating of the pot only determines the end points of that channel (lower resistance means less travel) because it acts as a voltage divider, and the signal transmitted is proportional to these two voltages and their difference between the trim pot.

02-14-2006, 02:02 PM	#114
shutupanddrive Quarry Creeper Join Date: Nov 2005 Location: LBC Posts: 370	Has anyone found any sort of self-centering pot with a knob to use in place of the 3 position switch to provide proportional independent rear steering instead of the full left/center/full right? I've been digging around on the net but haven't found anything yet. Lots of pots have knobs, but I can't find anything that is self-centering.

02-18-2006, 12:33 PM	#115
Frakk Pebble Pounder Join Date: Sep 2005 Location: Canada Posts: 171	you will just have to get used to centering them.

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02-18-2006, 08:49 PM	#116
shutupanddrive Quarry Creeper Join Date: Nov 2005 Location: LBC Posts: 370	I'm on it. it will take me a little while to find all the parts I need and get everything operating properly, but I've figured out a couple of different methods that might prove to work well. I'll report back when I have pics and something to show. I'm juggling too many projects right now like an idiot. I always end up doing that

02-19-2006, 01:54 PM	#117
cosmo Newbie Join Date: Dec 2005 Location: hungary Posts: 5	hi thanks for everyhing, i got used to with the 3way switch in 20min, works excellent

02-25-2006, 10:19 PM	#118
mattnin Rock Stacker Join Date: Feb 2006 Location: Grand Junction Posts: 91	Well I just found out that 1k pots just do not adjust the end points enough for the hitec 5955 digital servos. Rat shack doesn't have any 2.5k or higher submini pots! grrrrr. I must say though, this thread saved me some bling before I was gonna throw money away on another transmitter. This radio works actually quite well this way. I installed the front and rear steering epa pots. Once again, everything was easy to do except fit all the dang wires in there! grrrrrr. People, if you haven't done this mod yet, take special notice of wires and their routes, etc..... Real estate is at a premium in this transmitter.

02-27-2006, 02:05 PM	#119
bipolarcrawler Rock Stacker Join Date: May 2005 Location: hills Posts: 75	"cosmohi, i went through these tq3 topics, but couldnt find any info how could i mix ch1 and ch3 with a switch. maybe because of my language barrier / im from hungary / , i picked up a tq3 for this reason, but found out that with stock settings it cant be done i think it would be hard to me to controll the rear wheels independantly, i would prefer them to move together with the front wheels i apologise if i posted this in a wrong topic" 1: cosmo these type y harnesses are commenly used on airplanes to work the flaps.mine is horizon hobby y harness reverser standard.item# #exra320.horizonhobby.com .but if your controler doesnt have servo speed adj. it is realy weird to drive...turns to fast. 2:question,can you wire the pot between the servo and rx in the truck?or does it have to be at the switch in the controller?just a thought,if it works you wouldnt have the space problem as with the controler.sorry if this was covered and i missed it,but i didnt see anything.

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Thread: My Modded TQ3 Update - Added EPA pots