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Old 01-19-2009, 10:29 AM   #16
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what speed controller are you running?
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Old 01-19-2009, 10:31 AM   #17
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if you have the hotwire just write down the settings
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Old 01-19-2009, 11:13 AM   #18
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I do have hotwire and I will post in a few minutes.... just out of curiosity, what are you thinking? how would the speed control settings cause this?
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Old 01-19-2009, 11:16 AM   #19
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just want to rule it out that's all
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Old 01-19-2009, 11:19 AM   #20
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Quote:
Originally Posted by blacksheep View Post
need help... probably something stupid... Car will not turn one way and be on gas at same time... works fine the other way.... Also, if i turn the wheels that same way at a stop and then give it throttle - i get nothing.... doesnt move... When i straighten the wheels it goes forward....

IDEAS???? SUGGESTIONS????
What kind of radio are you using? Please take a picture of the setup, this may help us, help you.

Quote:
As a point of interest... at about 65% the problem is intermittent and the wheel on the side of the issue seems to rotate a bit on the rough side...
Sounds like you are binding up the CVD, too much steering EPA. Maybe the CVD is coming apart. This could jam the drive train as well.
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Old 01-19-2009, 11:52 AM   #21
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just be sure we are on same page.... please explain "epa"

I am running spektrum dx3r radio and Spektrum sr3100 rx

Hotwire settings
DB=22
RS=OFF
BS=90
NW=10
MT=BL-FW
TP=3
VC=2
PC=OFF
TA=50
CL=OFF
DUAL MODE

Here is photo of setup

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Old 01-19-2009, 12:22 PM   #22
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Quote:
Originally Posted by blacksheep View Post
if i adjust the travel (which i assume is the same as epa) to 60% the problem seems to go away... I was just trying that as you suggested it... Does 60% seem low? I need to confirm that the wheels are at full lock at around 60% to see if that is the limit... It might be??? It is a 4wd buggy if that makes a diff... on my stadium truck the travel is set to 100% with no problems...

As a point of interest... at about 65% the problem is intermittent and the wheel on the side of the issue seems to rotate a bit on the rough side...
Does 60% give you enough steering? If yes I would just leave it alone, especially if it's working like that. Different servos and linkage steups on different cars cause the steering to react differently so the difference in the radio settings between your two cars is understandable.
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Old 01-19-2009, 12:23 PM   #23
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I don't see the cap installed...did you install that?
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Old 01-19-2009, 12:30 PM   #24
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do you mean the capacitor for the esc? if so, you can see it peeking out between the battery leads and the motor leads...directly in front of the "R" from RS Pro....

As far as if it is enough steering, i still need to check how much of the lock to lock travel is being used at 60%.... it might be ok....
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Old 01-19-2009, 12:36 PM   #25
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ok...it could be that it is over extending the servo throw and draining current. I would try it at 60% on the track to see if that is enough, if the wheels go lock to lock then you should be fine
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Old 01-19-2009, 12:55 PM   #26
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List the part numbers of your equipment please....

Speed control
Receiver
Radio controller
Servo

First, set your radio epa's to 100%, some radios goto 150% for steering and 160% for throttle and this can sometimes cause problems for some equipment. Check your radio to make sure their is no servo mixing enabled. Turn you dual rate to 100% as well, Trims to 0. Reset you speed control setup calibration.

See if problem still exists.

You mentioned when you return the steering to center the car moves forward. Does the car still move forward if you unplug the servo? does the throttle still not respond when you turn the controller wheel with the servo unplugged?

put your car up on a block and test the problem while unplugging the servo and plugging it back in, If the problem only happens while the servo is plugged in, try the same procedure with another servo to confirm if its a servo compatability issue.

Same thing with the receiver, if their is still a problem, move onto the radio...
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Old 01-19-2009, 01:14 PM   #27
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Equip list:

Tekin RS Pro - esc
JR 9100S - servo
Spektrum DX3R - radio
Spektrum SR3100- receiver
SMC 7.4/4900 - battery
Tekin Redline 5.5 - motor

I just want to be sure i know what epa is.... are you talking about end point adjustments? If so, i believe it is labeled as travel on Spektrum radio
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Old 01-19-2009, 02:03 PM   #28
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Yeah, travel should be the same thing. Make sure S/R (steering rate) is 100% as well.
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Last edited by RCHR; 01-19-2009 at 02:15 PM.
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Old 01-19-2009, 02:14 PM   #29
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Make sure you recalibrate your spektrum radio as well (page 26 in the manuel)
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Old 01-19-2009, 03:17 PM   #30
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On the pred car it doesn't take much servo throw to gain full lock to lock steering. 60% might be enough.

EPA: End Point Adjustment is the digital limiter for your steering servo so the radio can prevent the servo from over working and destroying itself. These are generally not the same left to right and BOTH must be adjusted properly as MO said.

Also, if you got a little overzealous with the thread lock on the cvd's you could have one binding up.
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