BK Controller set up problem
 

I've got a brushless revo but I'm having trouble programming the BK controller that came with it. I've followed the steps that I found here at rc-monster but I still can't seem to get it to work properly.

I've done the set up for it step-by-step but when I try to drive it it still kinda just jumps and sputters (does that make sense?) ..it won't go full throttle.

Anyone have any suggestions?

ok, well I just noticed the red programming bridge has come unsoldered. Can I just solder it back on?

Yes. I had to do it on a few of my BKs.

I'm still getting that stuttering thing happening when I give it full throttle. I've re-programmed it several times now but it keeps doing it.

Anyone have any ideas as to what I can do to fix it. I've had this truck now for about a month and I would really like to get it out and run it

Thanks

What motor are you running? The BK controllers only like the 2 pole motors like the Feiago, Lehner, Hacker. It wont run well with a Neu or Mega or any other motor that is more than 2 poles.

If you have one of the high amp models, the rpm limit is only 42000rpm.

it's the Feiago motor. It was running just fine for the guy I bought it off of. He was running a dsm radio and receiver (I'm not). I've tried 2 different receivers so far but am still having the same problem. It seems to be alright if I ease onto the throttle...but when I hammer the throttle it stutters.

I don't know a whole lot about this stuff...that's why I bought it from someone else and didn't build my own. I was hoping to just be able to put my receiver in it and go...

Like I said, I don't know much about this stuff but I wasn't sure if maybe my receiver was too close to the esc? I've attached a picture of how it is set up.

Somebody mentioned to me that I might need something called a "glitch buster"?

Again, any help would be greatly appreciated
Thanks

I am guessing that the white shrink wrapped thingy is the ubec. They produce some interference, and may mess with the receiver. Move the receiver away from any of the power and ubec wires, maybe to the other end of the truck.

Dsm is not usually affected by ubec interference, while yyour fm may be. Just move the rec around until you fix the problem.

One of the jumpers is for calibrating your controller to your radio. Have you done that yet? It is the jumper right next to the capacitor and the other jumper is if you want to disable the BEC. (I might be wrong, it's been a while since I messed with my BK ESCs).

I tried moving the receiver around but still having the same problem. I followed the steps listed here http://www.rc-monster.com/forum/show...?s=&threadid=8 for setting up the controller. Is there something else I need to do?

Its a Koolflight BEC, its a pretty good bec noise wise. i got mine at least 2" away just in case

I gave up on external BEC a while ago and I only use a rx pack for my set ups that needs it.

ok, just to make sure I'm doing everything properly. These are the steps I followed from the link posted above...

remove the red programming bridge (little red jumper near the battery leads). While you are there, you should also remove the black BEC jumper if you are using a receiver pack or UBEC as recommended. This black tab is near the red jumper, but tucked under the heatshrink. Remove this to disable the BEC and utilize the receiver pack/UBEC.
Now plug in the receiver pack/UBEC and the main batteries and wait. After 5 seconds, you will here a beep from the motor. When you here this beep, move the throttle to full power and wait. after another 5 seconds, you will here another beep. When you here this, move your throttle control to full reverse and wait. After 5 seconds, you will here a double beep, indicating that set up is complete. Now replace the red programming jumper and turn off/unplug your main batteries and receiver pack.

So this is what I've done...

step 1 - I remove the red jumper that is sticking out in the first picture I've attached as well as the black one that is located beside it.
step 2 - I plug the batteries in
step 3 - after the motor beeps I go full throttle until the motor beeps again then I move to full reverse until the motor does a double beep.
step 4 - I put the red jumper and the black jumper back on
step 5 - I unplug the batteries.

I've tried moving the receiver as far away as I can from the thing that is wrapped in white at the front of the truck (which I guess is the ubec?), but the wires will only allow me to move it so far and it doesn't seem to make a difference.

Am I missing something or doing something incorrect when setting it up?

You mentioned the bridge came unsoldered. Did the traces broke off or just where the solder was came off?

It sounds like everything is working OK, and the setup sounds right. Other things to look at:

- Are your batteries up to the task? Weaker/tired cells won't be able to deliver the current required.

- Are the connectors (power and motor) dirty, loose, or soldered badly? Those won't pass the current effectively and will also cause voltage drops.