EEEEK! Problem....
 

Hey guys, sorry about this thread, but its in the sake of my truck. So me and mike.l are bashing in my backyard, and i gun it, i let go of throttle, and it keeps going:eek: It crashed right into a wooden fence, head on with the bumper, luckily no broken parts (this was at the 40mph mark).

So i disconnected everything, and checked if everything was alright, so i plugged in the batteries and went off, i gave it throttle gradually and it took off again, but this time it killed itself, it just went from full throttle, to a rolling stop. Whats the problem guys? Thanks.

P.s: Its a 10l/9920 on 16 ib4200's / Spektrum DX3.

Anyone, please. I just tried fixing the problem, i tried re-binding my dx-3, at the last step, everything turned off, than went nuts. It went full speed into the wall, it burned some of my carpet, and my hand, and it broke a couple of tiles. It also demolished my DX3, gonna have to go to the hobbyshop for a replacement. I just have the feeling RC is not for me.

You have any other radios to try?

"RC is not for me" doesn't work. TRUST ME. After 4 controller replacements, you kind of tend to get used to bad things happening.

Oh my!
What have you done now dom?
How many knots did the woman put on your head after she saw the tiles broke?
I have not had nothing like this on mine. I have noticed that it has a fail safe built in. When I first plug it up it wants to run wide open reverse. I have not run it out and had it kick in while playing.

Well, could it be the problem that i have to re-program the esc? Before when i had 14 GP 3300 batteries it never did this, but now the the 16 ib4200's it is different. Could it be the problem?

Once I got mine programed Unless i changed like rx or radio I never had to reprogram it. I don't know what to tell you. It sure sounds crazy.

man just joking around but when brushless is uncontrolled lives and everything around you is at-stake im just joking around here but me and sylvester got tire burns from trying to get that thing under controll.

Man.....

Yeah, im gonna have nightmares tonight... My responces are practicly bald from todays incodent.

ya when it hit the wooden fench that was freeeekky!

I can believe that. The tires spinning at 40 mph don't have to touch you long to leave a mark. The spektrum had a problem on them and showed slyvester on the site. I don't know if this is problem or not. It is a little thing with the way the antenna wire is run inside the rx.

with a forum Join Date of Feb 2005, can't stop now...... with 1 month under my belt and $400 in upgrades or repairs already, i look to you all for help and guidance.......

keep ur head up, eyes open, balls covered, and you'll get it fixed.

Thanks, i have found that the reciever may be the problem, gonna try the stocker out in just a moment! I wonder if the 1 year warranty is garranteed for any crazy bl trucks going over it? Ill just have to see.

plz get that thing fixed man today! that was weird the tire threw the controller and the entenna snaped.

uhhhh.....:025: :025:

Well boys, i think i solved my problem, the wire inside the reciever was hanging on 1 thread, and the transmitters wire was unclipped so i took it apart and clipped it on there, i tested it out, it seemed fine, just gonna do some more testing tomorrow.

Glad to hear it is fixed! ALso glad it was a fence and not block wall!

Cheers

:027:

Its not 100% fixed, i still have testing to do, but so far it looks to be functioning pretty well! But hey, i shouldnt be complaining, you went through a couple of escs/motors, by the way, did you just junk all that stuff or what?

9920 should be on its way to Germany. 8xl was replaced by Mike. 12020 was replaced by Mike. I still haven't heard why one leg of a cap would consistently burn off. I made 2 seven cell packs with the trinity/sanyo batts and they suck. IB 4200 are shot. Too many of them where actually leaking stuff. I might have a couple of good cells, but for now they are just sitting in my parts box.

Good luck with yours. It sounds like you are well on your way.

Yea, somtimes things are just meant to happen, i guess. Thats cool that you got some of your stuff back!

Mike was a lot of help.

sylvester that is the same radio I have for my truck I am a bit worried now, I really dont want a run away 2240, should I find a different radio?
coolhand, I hope mine does not want to do full throttle reverse on startup if it does I guess I could power up the recever, then switch on my MGM.

Dont worry, it should serve you well, i think something in the receiver was wrong, but when i first got it, the antenna wire inside was very loose, its somthing you should check.

Yeah, I also have that controller and am a tad worried too...

When you are binding the receiver, are you setting the throttle/steering at the positions you want for failsafe? I have mine set for neutral and full left steering. I figure if the throttle still goes forward or backwards at WOT, at least it will go in circles and not a mile down the road. :) Every once in a while, I test the failsafe by putting the truck on a stand and shutting off the transmitter to see if everything goes to the failsafe positions I set.

That fault was inside the transmitter,if it's the 'shut down' fault they show on their site.It's the way the antenna is routed inside the transmitter,if it's routed over the board it's too short and needs to be relaced,it should go under the board,anyone with a DX3 needs to open the transmitter to check.

Edit:er,it doesn't apply to the DX3(i think),that fault is definately within the transmitter module but it's just for people using modules.http://www.spektrumrc.com/Articles/HobbyWire.aspx

yea, im gonna try to re-bind everything, im probably gonna set the failsafe position to somthing like yours, but what if theres a tree to your left!! ;)

The way I understand it gustav it is in the receiver not the trans mitter. it is no wire to run in a modul.
If you power up the rx first and then the esc you will have no problem. I thought I set mine to fail safe in neutrel. I have to check this out.

I had a similar issue with the BK and the Spektrum, it would want to take off when it was connected, The fix was to install a switch and turn the RX on (via UBEC) after the main batteries were connected.

although it doesn't do it with the Shultze.........:002:

Leroy, re-bind your receiver, than try again. Isnt the transmitter called a "tx" ? And the receiver "rx"? Kinda confused...

Anyway i did some testing today, i took off the pinion and sat the truck on my backyard porch, turned on the tx and than the esc. Everything was fine, no sudden reverse (like you have, right leroy?) and i started to walk further away from the truck, everything was fine, i hear the motor responding to me as i moved my finger on the accelerator (throttle). Also tried the steering, works fine as well.

Do you think this is a ok way to test it, i am still a little scared to put the pinion back on, but ill have to sooner or later.

Also, i have found out that if i put the UBEC into the "AUX" slot in the receiver, it works, same if i put it in the "BATT" slot. Does it really matter?

Cabking, just read your post, i got a switch with my spektrum, did you use that one? Ill try it out if i have to! Thanks!

yup I used that one, to use the rear switch mount on the g2r takes a bit of work with the dremmel though, its a tad big.

edit, remember to fit it with the 'on' towards the front, that way it wont turn its self off after that heavy front end landing :032:

It is a bit big, thanks, ill keep that in mind. Now if you dont excuse me i got a switch to mount! :)

So you say to put a switch on the ubec and plug up the batts then turn the switch on and it works great. I will have to try that.

I did notice it don't do it with the schulze. I did have to adjust the center of the throttle to reverse a smidge. It wouldn't beep if not.

It's in the transitter modules i think,the antenna that runs to the little stubby ariel on the side of the Tx.it says 'how to check your transmitter module'.I think it's just for those with the modules and not a worry for DX3 owners.I think i'm going to get one,a DX3 with the extra free reciever.Have you guys that have them noticed any improvement in radio range or less glitching than with FM?The overhead power lines at my house seem to cause interference on 27MHz.

Well, when my spektrum was with my 14 cell setup a.k.a when it worked, i had glitch free runnning, even if i was over power lines, i couldnt see the truck for a moment of running, thats how far the dx3 can take you, it also has lots of useful features!

Yeah I cant explain why.!! the Spektrum does have that boot up delay when it finds a channel, though maybe all this is too much for the BK all at once.
Its seems to like being on first..............

or it did, until I had a schoolboy moment and fried it last week :036:
totally unrelated to the Spektrum though.

You fried your controller? How? That sucks.

yeah they do that if their underground too, we have a 27MHz blackspot on our track because the power cables for a nearby sports centre run underneath the field....not ideal, but it does prompt everyone to go 40 which can only be good.....anyone who runs a £££ truck on 27MHz in the UK needs their head testing...IMO.

. Gustav love your truck :043: go Spektrum. turn it on any ware with confidence is the best thing about it for me. no more waiting for a peg......Brilliant:043:

Sylvester...I'm still grieving, give it time and I will embarrass myself with the tale....:013:

nice to know you mostly have your problem solved. just to be on the safe and damage-free side do some more testing. then we go back to general bashing.:)

Oh go on man ,tell us,i had a 36120 go smoke recently by connecting it to the programming cable.I need to send it to BK to find out what went wrong,i hope i didn't connect the 4 AAs to the cable reverse polarity.Is it more embarrassing than that?

-

Lol, well, I suppose. Usually, you lose speed on turns so hitting a tree won't be as bad (hopefully). At the very least, turning on failsafe will be less likely to hit or get hit by something bigger and more destructive... like a car! :)

And to an earlier post: you can plug the battery into any connector, including AUX. The only advantage to using the dedicated BATT connector for the power is that it leaves the AUX channel free for an AUX servo connector. The battery and ground contacts are all in direct parallel inside the receiver - only the signal wires are seperate. Some people add a capacitor on the power connections of the AUX channel to help smooth out the UBEC voltage and it also adds a little amperage boost for short durations. This helps the servos to respond a bit faster and is easier on the UBEC. Just like our BL motors (or brushed motors for that matter), the most current is pulled at the beginning; A servo acts the same way.

Thanks Brian! I had it connected in BAT the whole time. As for the capacitor, i found one thats perfect for somthing like the DX3... http://www.spektrumrc.com/Products/D...ProdID=SPM1600 Or would somthing different be needed?

You could use a capacitor like that for the receiver. All it would do is act like a buffer to whatever BEC you are using. If you're using a UBEC, it shouldn't be necessary and probably wouldn't help (much).