R/C Tech Forums

R/C Tech Forums (https://www.rctech.net/forum/)
-   Radio and Electronics (https://www.rctech.net/forum/radio-electronics-137/)
-   -   Help with setup (https://www.rctech.net/forum/radio-electronics/942173-help-setup.html)

mustangman50 05-04-2016 06:15 AM

Help with setup video on page 2
 
Hello I'm having problems with my spectrum stuff .
Here's my combo
Spectrum dx4r pro
Sr2000 receiver
Spectrum 6290 servo
Rx8 gen 2 with 1900kv motor
4s lipo
I bind the remote to the receiver then I try to get the car going the car works the steering is twitching and is super sensitive and I feel like it's moving on its own at times. I've been out of rc cars for over 20 years and I don't know what's going on. Any help would be great. I've been reading the books trying to figure out this problem but I can't find it maybe it's just a setting I'm missing
Thanks

Geezatec 05-04-2016 07:45 AM

After binding w/o steering and ESC disconnected, your next step is Calibrating RX8. Then set up your parameters. If confuse about Power, use the AA battery cage that comes with radio system.

Good luck!!

Isn't the motor limit on 4s, RX8, 3000kv???? 1900kv you can run 2s where it is unlimited.

dan_vector 05-04-2016 12:26 PM

Rx8 gen 2 is fine 1900kv at 4s.

mustangman50 05-04-2016 04:12 PM

Well this car moves real well I just can't figure out why the servo is twitching. Everything is new Ive followed the instructions with everything.

The steering is super sensitive and the servos is like its on crack cant just stay still

BoostCreep 05-04-2016 05:31 PM

Have you checked the BEC voltage on the ESC? I've noticed when I put mine on 7.4 the steering servo is a little nervous and sings to me. I'm installing a glitch buster but that won't be until I get back from vacation in 12 days or I'd let you know how that works out. In case you're wondering a glitch buster is a capacitor that plugs into an unused channel on the receiver and is supposed to smooth out the power to stop the twitching.

mustangman50 05-04-2016 05:44 PM


Originally Posted by BoostCreep (Post 14518581)
Have you checked the BEC voltage on the ESC? I've noticed when I put mine on 7.4 the steering servo is a little nervous and sings to me. I'm installing a glitch buster but that won't be until I get back from vacation in 12 days or I'd let you know how that works out. In case you're wondering a glitch buster is a capacitor that plugs into an unused channel on the receiver and is supposed to smooth out the power to stop the twitching.

interesting maybe Ill try that. Anyone else have any info on helping with the dx4r pro the steering is super sensitive any way to calm it down a bit

Geezatec 05-04-2016 07:53 PM

Ck EPA make sure you are not overextending the steering, and play with the servo speed if too sensitive. Could be static from cooling fan, relocate the ESC.

mustangman50 05-04-2016 09:26 PM


Originally Posted by Geezatec (Post 14518751)
Ck EPA make sure you are not overextending the steering, and play with the servo speed if too sensitive. Could be static from cooling fan, relocate the ESC.

I'm sorry but what is epa? I ordered a glitch buster to try if that doesn't work Ill try moving the esc to the rear of the car and move the battery up. Thanks for the help Ill mess with servo speed tomorrow

Geezatec 05-04-2016 10:57 PM

End Point Adjustment. It adjust travel of servo L/R lock to lock or keep the servos from buzzing and or overheating. set at 100% to start, can go down to 85-90%, depend on servo travel. Make sure steering components are free, no binding. Can also cause the chatter/ twitching or servo difficult for it to find home position.

mustangman50 05-05-2016 06:09 AM


Originally Posted by Geezatec (Post 14518916)
End Point Adjustment. It adjust travel of servo L/R lock to lock or keep the servos from buzzing and or overheating. set at 100% to start, can go down to 85-90%, depend on servo travel. Make sure steering components are free, no binding. Can also cause the chatter/ twitching or servo difficult for it to find home position.

Ok I'll take a look at that later also. Man these cars have come a long way in 20 plus years.
Thanks for the help

Geezatec 05-05-2016 07:44 AM

Been in Nitro since '83 with Serpent Quattro And vintage AE RC10 Gold bucket. From AM To FM To 2.4Ghz, From NiCd To NiMh To Lipo's to Life. It has advance to the Millennium. Servo twitchy cuz maybe steering components free from binding. Or if your the plastic geared servo. May have to upgrade to a MG,HT,HS,BB servo.

Electronics has change 6 years, Its like Computers and Microsoft. Gotta keep up with upgrades. It change cosmetically, but is still doing the same thing as FM system, Just Binding the major part. Or leasing a Porsche every year!!!! Guys like us, we just keep up with the Jone's.

Just have fun with the hobby!!! I'm still doing it!!!

mustangman50 05-05-2016 12:21 PM


Originally Posted by Geezatec (Post 14519302)
Been in Nitro since '83 with Serpent Quattro And vintage AE RC10 Gold bucket. From AM To FM To 2.4Ghz, From NiCd To NiMh To Lipo's to Life. It has advance to the Millennium. Servo twitchy cuz maybe steering components free from binding. Or if your the plastic geared servo. May have to upgrade to a MG,HT,HS,BB servo.

Electronics has change 6 years, Its like Computers and Microsoft. Gotta keep up with upgrades. It change cosmetically, but is still doing the same thing as FM system, Just Binding the major part. Or leasing a Porsche every year!!!! Guys like us, we just keep up with the Jone's.

Just have fun with the hobby!!! I'm still doing it!!!

My servo is a spectrum 6290 all metal cases and geared I emailed spectrum and they told me to try something in the remote which I wil do when I get home also thank you for the help I'll get this all figured out

Geezatec 05-05-2016 02:38 PM

You know remote adjustments on remote I said you may try. The other thing is Mechanical. Remove Servo horn and see if it fluctuates. if in doesn't, you know there a problem in the steering linkage or steering knuckles or suspension
.

Your are close!! you'll get it!!!

mustangman50 05-06-2016 06:08 PM


Originally Posted by Geezatec (Post 14519793)
You know remote adjustments on remote I said you may try. The other thing is Mechanical. Remove Servo horn and see if it fluctuates. if in doesn't, you know there a problem in the steering linkage or steering knuckles or suspension
.

Your are close!! you'll get it!!!

I got that glitch buster in and fail this thing is still going wako and twitching. I unplugged the fan on the esc to see if there was interference. Nothing still the same.

Geezatec 05-06-2016 07:38 PM

Disconnect the servo horn, if twitching stop there binding the steering linkage. It still twitches you servo flaky.

mustangman50 05-07-2016 05:40 AM


Originally Posted by Geezatec (Post 14521436)
Disconnect the servo horn, if twitching stop there binding the steering linkage. It still twitches you servo flaky.

Yeah I tried that also the servo is just crazy I'm gonna call the place I bought it from and let them know. Maybe I can trade it in $130 servo maybe I just got a bad one

mustangman50 05-08-2016 11:59 AM

https://youtu.be/X8eoRJJDAYs

https://youtu.be/FtD-WRRhAow

https://youtu.be/aQvUtCVXt6g

mustangman50 05-08-2016 07:44 PM

I got all the steering problems all buttoned up now its the same issue with the throttle Ill be taking it in to the hobby store tomorrow Its gotta be something in these settings

Geezatec 05-08-2016 08:16 PM

Seems like the servo not centered, center by removing horn turn on TX so servo center itself, and horn should be at a 90deg angle, You may have to adjust linkage. If you have problems with throttle, redo the calibration on Tekins manual.

mustangman50 05-08-2016 08:54 PM


Originally Posted by Geezatec (Post 14523613)
Seems like the servo not centered, center by removing horn turn on TX so servo center itself, and horn should be at a 90deg angle, You may have to adjust linkage. If you have problems with throttle, redo the calibration on Tekins manual.

Well I messes with something in the remote and now the throttle is twitchy and on crack. I got the steering right but the problem now moved to the throttle esc.. Ill be bringing it into the hobby store after work to see if they can help

Geezatec 05-08-2016 09:18 PM

What ever you messed with, may throttle profile, It may have changed the calibration. Redo calibration It'll clear out. Make sure EPA At 100%.

mustangman50 05-08-2016 10:18 PM

Stupid me I just had to go in the radio setting and calibrate full throttle then full brake all fixed :). Thank you for your help man I've been out of this rc world for too long now time to have some fun with it

Geezatec 05-08-2016 11:46 PM

No problem bro! Where are you located, its gettin late here. I'm thinking you're the east coast!

mustangman50 05-09-2016 06:08 AM


Originally Posted by Geezatec (Post 14523767)
No problem bro! Where are you located, its gettin late here. I'm thinking you're the east coast!

West coast Bay Area California :D

Geezatec 05-09-2016 07:37 AM

Ok! Have relatives in Daly City, San Rafael, an SF, Fremont and San Jose. Worked once a month in Downtown SF, Pier 39. Mission College has a racing club out there. Sac has a track in Fairfield, if you don't mind the drive.

Me I'm originally from LA, in Vegas 9yrs now. My aunt in SF just past away, and she had a 64 mustang in her garage that been sitting since '73. I'll be picking up in a few weeks.

A lot of times Tekins get a little finicky. Recalibrate as part of your maintenance or changing throttle profiles. Set your EPA Steering when servo not buzzing or straining, another the speed of servo. Customize to the way of driving habit.

Have Fun Brahda!!!!


All times are GMT -7. It is currently 09:00 AM.

Powered By: vBulletin v3.9.3.9 Patch Level 3
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.