glitching and locking up

[koch131]

I have a scx10 that glitches front to back when its just sitting on. And sometimes it locks up when I punch the throttle. I have a xl5 with holmes 35t motor and 25t pinion 87t spur 5000 mah 2s zippy with a losing 2.4 ghz spectrum rx just installed.please help

[meanbgreen]

when mine did that I changed my rcvr.

[koch131]

thats what i just did. and it is still doing it but now its worse. could it be the rcvr batteries? or my lipo? its old.

[NFA Fabrication]

Possibly add a BEC? I know in stock form, the RTR SCX10, and Wraith really need a BEC or they often have similar issues.

[koch131]

That's what I was thinking. What do these do? And how do I hook them up? And also which one should I buy for my setup but I also want to upgrade to a brxl so that would work with that to

[wheeler chaos]

External Bec's replace the bec in your esc.
You solder the wires too your battery connection.
Castle bec's are pretty durable so long as you hook them up correctly.

I would make sure that your motor,esc, rx and battery connections aren't mucked up somehow also.

[koch131]

Ok thanks. But I still don't know what a because does exactly.

[maberto]

My stock scx would glitch under steering load when I started running 3 cells batteries. The steering servo would lock up and the rig would not move until the steering released. The 3 cells were overloading the system. I added a BEC to to keep the voltage consistent to the servos and so far that has stopped the gliching and smoothed out the throttle response and steering. At some point you're going to need a BEC when you start running stronger servos. I don't thing you'll lose anything by adding one.

[wheeler chaos]

Originally Posted by koch131

Ok thanks. But I still don't know what a because does exactly.

A external BEC (power supply) replaces the BEC (power supply) that is in your ESC (speed control).
It takes the power from your battery and puts it directly to your receiver or directly to your servo depending on how its wired.

[koch131]

So i would need to wire it to my rcvr? Because the glitching has nothing to do with the steering.

[craddock35]

This is how I have all mine wired up its simple and it takes most of the load off your bec in the esc.

[schiesz]

Originally Posted by koch131

thats what i just did. and it is still doing it but now its worse. could it be the rcvr batteries? or my lipo? its old.

Receiver batteries? Doesn't it just run off the lipo? If the lipo is old that COULD be part of the problem, but I think something else is going on here. Are your transmitter batteries good? Have you calibrated the XL5?

Post some pics of all the components here, maybe that will help shed some light on the problem.

[craddock35]

You shouldn't have receiver batteries the receiver should be powered from your bec in the esc. Do you have a receiver battery pack on it also? If you do I would pull it off and try it. Then if that doesn't fix it see if you have the same problem a friend of mine had not long ago his kept stopping and acted like it wanted to go sometimes but wouldn't unless he bumped it which with the big pinion you are running it is possible you did. I had to pull his motor and rebuild it cause he was overheating it and fried the brushes and almost destroyed the com. IMO the largest pinion you should run on there would be maybe a 21t. PICS would help.

[schiesz]

Originally Posted by craddock35

Then if that doesn't fix it see if you have the same problem a friend of mine had not long ago his kept stopping and acted like it wanted to go sometimes but wouldn't unless he bumped it which with the big pinion you are running it is possible you did. I had to pull his motor and rebuild it cause he was overheating it and fried the brushes and almost destroyed the com. IMO the largest pinion you should run on there would be maybe a 21t. PICS would help.

Good point, I didn't catch that. 14T-20T are usually run on these. Going lower is going to be easier on the motor. A 25T pinion could have fried it.

[JustNick]

I know this is a little old.. but did you check the trim? Mine was doing the same thing. My problem was the throttle trim was bit off. I kept twitching when it was standing stil I took a look at my controller and I had bumped the trim off of "0." I fixed that and it's been fine ever since. I do need a new receiever though..

[koch131]

Sorry I haven't been on here in a while. But yes my transmitter batteries are good. And I put a different lipo on and it fixed it. I am gunna get a smaller pinion for the motor.

[MntnHntr]

I had a similar issue with mine. I added a BEC to power my steering servos, ithas been fine for awhile now.