Mini K-Bar

Superbad · Post by **Superbad** » Mon Mar 09, 2015 11:19 pm

I have not been able to shut down a mini K Bar yet
I have it on my 550 Running the ds615 and a655 It is powered with a BEC pro at 6v
The forza 450 withe JR servos and stock esc running that one at 5v
The mini Titan with 4 KST 215 with a CC 10Amp BEC at 6v
I also have a full size Kbar but have not flown it

I would like to know if he is loosing control of the servos when this happens or if is just the motor shutting down

murankar · Post by **murankar** » Tue Mar 10, 2015 1:25 am

I'm not saying that's the issue with his, its possible though. I also can't say its going to be an issue with the kbar. This issue is a known issue with mini vbar. I know its a clone but its feasable that the maker of the kbar may have addressed that power issue. I know Nick Lenn (RCHN) had a power issue with his mini vbar. His graupner radio brought this to his attention and discussed it on the show.

DOG · Post by **DOG** » Tue Mar 10, 2015 2:13 am

Hey superbad, his motor is shutting down and no control on the servos. Maybe that will help.

Superbad · Post by **Superbad** » Tue Mar 10, 2015 2:54 am

What Tx did he have before the Taranis Plus
I wonder if its not from piggy backing the RX and not applying the power to the kbar by it self

DOG · Post by **DOG** » Tue Mar 10, 2015 3:24 am

To be honest with you, i really don't know what TX he had. I just know it was a turnigy TX. I really didn't think it was the radio but he got one anyway. I do agree with you about not having problems with Mini vbar. He had that vbar way before all this happen. I know that he's going to put the CC bec on by the weekend. He also didn't piggy back the TX, he started from scratch. He also has the v-bar for his 500 but won't fly it til the 450 is fixed first. Which it's a good thing to do.

Superbad · Post by **Superbad** » Tue Mar 10, 2015 3:56 am

I dont know much on the trungy and the Taranis plus thought they had to have a RX to work with DSMX systems
Thats why I would think the RX is piggy backed to the KBar
If he is not selecting the right type of RX that could be the problem its loosing all signal

DOG · Post by **DOG** » Tue Mar 10, 2015 4:50 am

No, he's been using the same RX before all of this started. That's why it's strange. He must of flew about 2 dozen batteries before this situation started to developed.

murankar · Post by **murankar** » Tue Mar 10, 2015 7:46 am

If he had a turnigy it was either the orange or the 9x. Can't mess those up, they are blightinly different. The taranis uses open9x for its firmware. He needs to check if he has no mixing in the radio. It should be under heli setup in the radio. Swash type should be off. Now the taranis can take an orange module for DSM.

He needs to make sure His throttle curves are set correctly. The default curves make no sense what so ever. If thats all good then make sure Hus throttle end points are correct with the new radio. If that stuff is not the cause I don't know the answer.

smoke · Post by **smoke** » Tue Mar 10, 2015 5:19 pm

Hello all DOG is right I joined the site . Thanks for all the info. My thoughts about it I agree with everyone about the bec 5.5v @ 5 amps msut not be enough. First thing I am going to put the Castle Creation 10a bec on there and try that then go from there again thanks for all the input.

Superbad · Post by **Superbad** » Tue Mar 10, 2015 6:15 pm

smoke wrote:Hello all DOG is right I joined the site . Thanks for all the info. My thoughts about it I agree with everyone about the bec 5.5v @ 5 amps msut not be enough. First thing I am going to put the Castle Creation 10a bec on there and try that then go from there again thanks for all the input.

How and what are you using for the RX

smoke · Post by **smoke** » Tue Mar 10, 2015 6:53 pm

I am using frsky V8R7II rx with taranis tx with standard connection to kbar no sat rx .

Superbad · Post by **Superbad** » Tue Mar 10, 2015 7:05 pm

smoke wrote:I am using frsky V8R7II rx with taranis tx with standard connection to kbar no sat rx .

IS your power going in to the RX first then the K bar How is the kbar being powered

smoke · Post by **smoke** » Tue Mar 10, 2015 7:14 pm

Yes rx then kbar.. lead from esc to rx then kbar

Superbad · Post by **Superbad** » Tue Mar 10, 2015 11:12 pm

smoke wrote:Yes rx then kbar.. lead from esc to rx then kbar

That Just Maybe the problem
run the power to the Kbar first then to the rx the Rx dose not take that much to be powered

smoke · Post by **smoke** » Tue Mar 10, 2015 11:32 pm

I didnt think I could do that I thought the esc signal wire has to go to the throttle channel on the rx first then power to the kbar. Right now I am using the internal bec. Im not sure how to do it the way your talking about.

Superbad · Post by **Superbad** » Wed Mar 11, 2015 1:23 am

The ESc wire should be in the RXB port then you use the jumper from RXC back to the RX to power it
https://www.youtube.com/watch?v=9EHdHNUEK9w

Superbad · Post by **Superbad** » Wed Mar 11, 2015 1:51 am

I got this off Vstabi web site
this is what it shows
Connectors for standard reciever:

RD = Tail rotor servo
Ch1 ... 3 = Swashplate servos
RX A = Aileron, elevator and rudder signal from RX
RX B = Collective RX signal and power supply
RX C = Gyro gain RX signal and power supply
RX 1 = not used
RX 2 = not used
You need to have solid power going in to RC B OR C

smoke · Post by **smoke** » Wed Mar 11, 2015 11:05 am

Ok I think you have found it because I dont have esc going in kbar first. I will try it out this weekend. Then let you know how it goes thanks alot Superbad and everyone else that helped out.

Superbad · Post by **Superbad** » Wed Mar 11, 2015 3:16 pm

If you have a bec I would just rune it to RXC and then a jumper lead off RXB and remove the red wire from your ESC cable
that look like the easy thing to do seeing how everything else is already plugged in and working

smoke · Post by **smoke** » Wed Mar 11, 2015 3:45 pm

Thanks Superbad

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