Help Deciphering A Crash - GPX File

This was addressed above. My understanding is when you disconnect the NAVI/GPS you get no GPX data file.

If you know of a way to disconnect and keep the data recording please advise.

Colin

 

Hi Dave. Yes the flyer is level when I calibrate ACC. I use a bubble level on the battery tray and the "Andy Spirit Level" for the motors.

 

Here I am weeks later and I have to report things are worse.

I contacted QC. They acknowledged they had seen the same problem with on one of their Hexs. But they said it should not matter just keep flying. Upon follow up on my part after a few days of no replies I spoke with Adam who suspected a Yaw gyro problem, perhaps other FC board problems. Ziggy at MK.us suspected the same.

The problem has progressed such that I now only get 1 - 2 min of flight. See data below. As a result I totally hosed a client job and did not get the shots they wanted.

After that disaster I asked QC for a simple used FC board swap to see if that would fix it, but they wanted me send the whole kopter in for repair. I was able reason with them that sending in just the board would be a better approach. That way they could diagnose it. However, if components are determined bad, they would send it to Germany for repair. I can't imagine that is a good option for anyone. I just went ahead and purchased a used board for $325 and will swap it myself. I will post the results here.

Colin

Data:

Flight time: 11:31:41 AM - 11:33:06 AM (85 secs, 00:01:25)​

Total: 87 secs, 00:01:27​

Elevation(GPS) : 0 3.29 4.82 m​

Altitude(Barom.): 0.4 3.53 5.5 m​

Vertical speed : -9.31 -0.47 1.16 m/s​

Max speed : 33.8 km/h​

Max target dist.: 0 m​

​

Sats: 8 8 11 (min/avg/max)​

​

Voltage: min. 14.2, max. 15.8 V​

Current: 7.4 41 52 A​

Wattage: 113 608 764.4 W​

Capacity: 1006 mAh​

​

Motor1: 1.2 8.0 11.3 A Temp: 23 46 60 °C​

Motor2: 0.3 2.7 4.6 A Temp: 20 40 49 °C​

Motor3: 0.3 7.0 10.0 A Temp: 21 42 50 °C​

Motor4: 0.5 6.8 8.9 A Temp: 27 49 57 °C​

Motor5: 0.5 9.0 12.6 A Temp: 30 59 73 °C​

Motor6: 1.2 6.3 8.5 A Temp: 25 48 60 °C​

​

Magnet Field: 99 100 103 % (ok)​

Magnet Inclination: 58 59 62 deg​

​

Errors / warnings:​

FC-Flag "LowBat" (5) occured 5 times!​

 

The saga continues. I swapped my FC board with a used one from QC and got mixed results.

I still have short flight times and the odd motors still appear to be pulling more power than even at times. In the flight below the first "LowBat" warning MotorCurrent was 81,22,76,44,95,49 and it was in FreeFlight. Also, overall, Motor2 is still quite lower than the rest.

With the new board I also have two of the other problems I had with the original board: 1) an unreliable camera trigger and 2) inability to switch smart-OSD screens.

Colin

Data from last flight with gimbal and NEX-5N w/16mm attached; 5mph wind:

MK Version: FC HW:2.1 SW:0.88e + NC HW:2.0 SW:0.28h​

​

Flight time: 11:27:48 AM - 11:32:34 AM (286 secs, 00:04:46)​

Total: 286 secs, 00:04:46​

Elevation(GPS) : 0 3.77 7.436 m​

Altitude(Barom.): -0.7 3.92 5.05 m​

Vertical speed : -1.65 -0.03 1.14 m/s​

Max speed : 12.1 km/h​

Max target dist.: 8.1 m​

​

Sats: 8 10 11 (min/avg/max)​

​

Voltage: min. 14.4, max. 16.2 V​

Current: 6 39 50 A​

Wattage: 91 605 747.3 W​

Capacity: 3185 mAh​

​

Motor1: 1.5 7.0 10.3 A Temp: 18 55 76 °C​

Motor2: 0.6 3.0 4.7 A Temp: 17 50 66 °C​

Motor3: 1.0 7.1 9.5 A Temp: 17 52 64 °C​

Motor4: 0.5 7.0 11.8 A Temp: 25 62 76 °C​

Motor5: 2.4 7.4 10.8 A Temp: 28 67 78 °C​

Motor6: 4.9 6.6 12.3 A Temp: 24 57 72 °C​

​

Magnet Field: 103 104 107 % (ok)​

Magnet Inclination: 58 60 64 deg​

​

Errors / warnings:​

FC-Flag "LowBat" (5) occurred 3 times!​

 

Hi Gary

It flies "OK" but uses juice much to fast. I have logged flights with same set up and got 7-8 min.

Yes I have an XBee equiv. See post #86 and #87 above.

Settings are identical on new board. As you may know (and I just found out) saving an MK configuration does not save all the values. So I had to reinstall the old board and get screen shots of every tab and check the new board config tab by tab.

One thing I do notice that's new is when I trigger the camera I do get a "movement" in the gimbal nick. This never happened before. Also in old board for Nick 'invert direction' was checked. In the new board that had to be unchecked. Any ideas on that? (See previous discussion here: http://forum.freeflysystems.com/index.php?threads/connecting-xbee-to-smartosd.779/page-2)

Colin

 

I did a couple of more flights to confirm that the problem still exists even with the new (used) board. It does. Data below from flight with gimbal and CX760 in a light / 5mph wind.

I guessing the only option I have now is to break it down and send to QC for analysis and repair.

Data

MK Version: FC HW:2.1 SW:0.88e + NC HW:2.0 SW:0.28h
Flight time: 11:47:14 AM - 11:52:24 AM (310 secs, 00:05:10)
Total: 310 secs, 00:05:10
Elevation(GPS) : 0 6.97 11.785 m
Altitude(Barom.): -0.95 3.64 7.3 m
Vertical speed : -1.3 -0.02 1.02 m/s
Max speed : 7.7 km/h
Max target dist.: 4.8 m

Sats: 11 10 11 (min/avg/max)

Voltage: min. 14.5, max. 16.8 V
Current: 13.4 46 60.8 A
Wattage: 225 713 891.25 W
Capacity: 4028 mAh

Motor1: 1.1 9.0 12.8 A Temp: 26 60 76 °C
Motor2: 0.5 2.4 4.1 A Temp: 24 49 58 °C
Motor3: 1.1 10.4 15.3 A Temp: 25 66 77 °C
Motor4: 1.5 6.6 9.1 A Temp: 33 69 80 °C
Motor5: 1.7 10.7 14.2 A Temp: 35 84 95 °C
Motor6: 1.7 5.7 8.7 A Temp: 31 59 70 °C

Magnet Field: 101 102 105 % (ok)
Magnet Inclination: 59 60 67 deg

No errors found

 

Thanks Shaun. I threw in the towel, packaged it up, and sent if off the QC for repair today. We'll see what they say

Colin

 

I am happy to report this saga is ended and all is well - except that it took six months to fix. In that time I turned down two clients and basically missed prime CA flying time. Summer is here and so are the winds.

There really was no explination of cause(s). The remedy was a new FC, BL and Navi boards, plus all new motors. This confirmed my suspision that it was a poltergeist.

While in the shop I had them upgrade to an MX20 and install a LANC controller and the new MK ACC board. Data below from my first test flight.

Thanks to everyone who tried to help out here and many thanks to the guys at QC - especially Riley - for the good service.

Cheers

Colin

Data:
MK Version: FC HW:2.2 SW:0.90h + NC HW:2.0 SW:0.30h

Flight date: 6/20/2013 9:35:22 AM
Flight time: 9:35:22 AM - 9:42:32 AM (430 secs, 00:07:10)
Batt. time : 428 secs, 00:07:08

Elevation(GPS) : 0 1.77 3.919 m (min/avg/max)
Altitude(Barom.): -0.4 8.07 12.35 m
Vertical speed : -1.26 -0.02 0.56 m/s
Max speed : 5.5 km/h
Max target dist.: 3.9 m

Sats : 7 8 10

Voltage : min. 14.3, max. 15.8 V
Current : 0.5 41 47.9 A
Wattage : 7 613 722.06 W
Capacity: 4923 mAh

Motor1: 0.7 7.0 9.3 A Temp: 24 71 85 °C
Motor2: 0.5 6.8 11.0 A Temp: 25 71 83 °C
Motor3: 0.7 6.1 8.0 A Temp: 25 69 87 °C
Motor4: 0.4 6.4 8.1 A Temp: 29 74 89 °C
Motor5: 0.2 6.9 9.8 A Temp: 27 76 89 °C
Motor6: 0.2 6.5 9.5 A Temp: 22 73 87 °C

Magnet Field: 101 107 120 % (ok)
Magnet Inclination: 57 62 66 deg

Errors / warnings:
I2C errors: 007