78 replies to this topic

[AlPackin]

 midiman007, on 11 January 2012 - 12:21 AM, said:

Is this exclamation mark supposed to be here?

yeah, that's normal

[midiman007]

Would there be some simple thing I missed that would cause the quad to want to tip over before liftoff. I replaced one of the motors to see if that's what it was. I did the level cal and the joystick cal. I did the all at once throttle cal on the esc's, and also did the rolling arm, and each motor spun up, and the arm does work. It's probably the motors. I have several more so I guess I'll bit the bullet and set up my thrustmeter and laser balancer and spend some time sorting that out. Try to match the motors up, or something like that.

[midiman007]

COG ... something so simple that I overlooked it. I FLEW!!! ... Just for a few seconds.

[nukkenfutz]

 AlPackin, on 10 January 2012 - 11:51 PM, said:

well I'm guessing that the BEC that you have connected to CC is defective or it's a bad solder connection

Bingo! When I traced the wiring a power bullet connector from THAT bec had come apart and didn't notice before because on the KK board all 3 BECs were connected. It was well hidden as it was inside the aluminium tube in between 2 of the delrin levels.

Now that it powers ok hopefully I'll finish the config. and take her for a spin.
Many thanks for all the assistance.

[Waikawa]

I'm flying a tri using Turnigy Basic ESC, DT750 motors from HK.  It flies ok but every now and then there is a momentary power loss which causes the tri to drop out of the sky.  Not to bad hovering at 6 inches but not recommended higher up.  I was using a 35Mhz Receiver and thought it was some kind of interference, so I changed to a 2.4Ghz Rx and put ceramic rings on the ESC cables but that hasn't cured it.

Anybody seen power glitches?

[AlPackin]

usually caused by a bad solder connection or loose fitting bullet connector

[Waikawa]

I have tried restting the rate for the ESC's to 350 Mhz and that has cured the problem completely. Llooks like the Turnigy basic esc cannot handle 400 mhz.

[AlPackin]

good, I glad that you worked out your problem

[dompower]

I am suggesting a simple tip here..
Just add with permenant marker pen..number of dots or x to the ESC signal cable to indicate the motor  number while connecting to the appropriate channels.
This will be very handy ..in later stages...to track the motor  easily.
(however if you swap ESC then don't forget to change these dots accordingly!)


dompower
Riyadh

Attached Files

•  MotorIdentification.jpg   166.02K   81 downloads

[dacat]

 dompower, on 01 February 2012 - 06:36 AM, said:

I am suggesting a simple tip here..
Just add with permenant marker pen..number of dots or x to the ESC signal cable to indicate the motor  number while connecting to the appropriate channels.
This will be very handy ..in later stages...to track the motor  easily.
(however if you swap ESC then don't forget to change these dots accordingly!)


dompower
Riyadh

same way i do it ... only i get the power from esc one..

[DanZ]

 dacat, on 01 February 2012 - 07:20 AM, said:

same way i do it ... only i get the power from esc one..

I also have my power on esc one however I still have all my grounds connected? Should I remove those too, I'm sure I read somewhere they all need to be common though?

[juz]

 DanZ, on 09 February 2012 - 07:50 PM, said:

I also have my power on esc one however I still have all my grounds connected? Should I remove those too, I'm sure I read somewhere they all need to be common though?

From the wiki

In case CopterControl is powered through the servo connectors, then only connect the power from one ESC and remove the positive and negative wire from the other ESC's. Connecting multiple voltage regulators (built in to the ESC's) in parallel could cause problems. Connecting multiple black ground wires could cause ground loops which we want to avoid.

[fredz69]

 juz, on 09 February 2012 - 10:44 PM, said:

From the wiki

In case CopterControl is powered through the servo connectors, then only connect the power from one ESC and remove the positive and negative wire from the other ESC's. Connecting multiple voltage regulators (built in to the ESC's) in parallel could cause problems. Connecting multiple black ground wires could cause ground loops which we want to avoid.

Hmmm interesting and also confusing.

I set my quad up with only one red (positive) wire attached but all the blacks (negative) as per two videos Dankers has done and posted on the Wiki

Although I believe you Juz and what you have posted, can someone please confirm for all out there if you need to remove all but one black wire as per the Wiki or how Dave shows in his videos is ok

Thanks

[juz]

hey, don't believe me, I was just quoting the wiki. Its a valid question for sure. I have been lazy with my last  build and all three wires on my four escs are connected to my coptercontrol. LOL. Previous builds I have had just one power and one neg from #1 esc connected.

[DanZ]

 fredz69, on 10 February 2012 - 10:33 AM, said:

Hmmm interesting and also confusing.

I set my quad up with only one red (positive) wire attached but all the blacks (negative) as per two videos Dankers has done and posted on the Wiki

Although I believe you Juz and what you have posted, can someone please confirm for all out there if you need to remove all but one black wire as per the Wiki or how Dave shows in his videos is ok

Thanks

I'm also confused, I got involved with CC from watching Warthox videos and I remember seeing this pic of his setup and I set mine up the same way, with the grounds still connected.



I know having them in parallel via the CC can cause ground loops apparently. None of this makes sense to me and probably never will, I can follow pictures lol.

[Andre]

all my wires is connected.

[chatch15117]

all your wires are belong to us

[juz]

Andre, on 26 February 2012 - 05:56 PM, said:

all my wires is connected.

+1. every coptercontrol build of mine (except the first) have all 3 wires from all 4 escs connected, no problems.

[AlPackin]

juz, on 11 May 2012 - 12:56 AM, said:

+1. every coptercontrol build of mine (except the first) have all 3 wires from all 4 escs connected, no problems.

me too, all of them, no problem