DKTek
Member
I have a SkyJib 8 with the newest hardware, 2.5FC, 2.1 Navi, 2.1 GPS and Double Quadro 2XL BLC.
The issue is, that the even motors(2,4,6,8) are running about 10deg hotter than the odd motors(1,3,5,7) and the GPX file is showing the even motors are 6-10amps more than the odd motors. The yaw moves around at times but holds heading most of the time. The remote compass solved my compass errors completely, but this issue remains.
I did add a second set of power leads for symmetry and convenience. I soldered the new wires to the original power wire protruding the top BLC. Could it be that I induced an electrical efficiency imbalance between the two BLC boards? Maybe a cold solder joint...
I added the second power leads because I have a hard time believing the the single power lead could handle the max amp load capable of this Double Quadro BLC. 480 amps is a lot for such small wire, even at a short burst.
Anyone else with similar issues?
GPX info...
MK Version: FC HW:2.5 SW:2.06a + NC HW:2.0 SW:2.06a BL:V3
Flight date: 4/19/2014 5:15:09 PM
Flight time: 5:15:09 PM.0 - 5:23:16 PM.6 (487 secs, 00:08:07)
Batt. time : 486 secs, 00:08:06
Start Lat./Lon. : 27.9611437 / -80.6750725
Elevation(GPS) : 0 0.04 4.825 m (min/avg/max)
Altitude(Barom.): -1.8 1.94 12.75 m
Vertical speed : -1.8 -0.05 3.86 m/s
Max speed : 12.9 km/h
Max target dist.: 3.5 m
Max distance/LOS: 13.4 m / 14.6 m
Sats : 9 10 12
Voltage : min. 15.1, max. 16.6 V
Current : 0.5 80 140.7 A
Wattage : 8 1261 2138.64 W
Capacity: 10744 mAh
Motor1: 0.0 7.0 16.9 A Temp: 35 40 45 °C
Motor2: 0.0 14.3 23.0 A Temp: 31 49 57 °C
Motor3: 0.0 6.2 14.9 A Temp: 32 38 42 °C
Motor4: 0.0 12.8 21.0 A Temp: 28 47 55 °C
Motor5: 0.0 5.9 12.3 A Temp: 32 40 44 °C
Motor6: 0.0 11.5 20.0 A Temp: 31 48 56 °C
Motor7: 0.0 5.2 13.0 A Temp: 31 39 44 °C
Motor8: 0.0 14.8 25.0 A Temp: 31 49 57 °C
Magnet Field: 99 102 107 % (ok)
Magnet Inclination: 54 55 61 deg
No errors found
The issue is, that the even motors(2,4,6,8) are running about 10deg hotter than the odd motors(1,3,5,7) and the GPX file is showing the even motors are 6-10amps more than the odd motors. The yaw moves around at times but holds heading most of the time. The remote compass solved my compass errors completely, but this issue remains.
I did add a second set of power leads for symmetry and convenience. I soldered the new wires to the original power wire protruding the top BLC. Could it be that I induced an electrical efficiency imbalance between the two BLC boards? Maybe a cold solder joint...
I added the second power leads because I have a hard time believing the the single power lead could handle the max amp load capable of this Double Quadro BLC. 480 amps is a lot for such small wire, even at a short burst.
Anyone else with similar issues?
GPX info...
MK Version: FC HW:2.5 SW:2.06a + NC HW:2.0 SW:2.06a BL:V3
Flight date: 4/19/2014 5:15:09 PM
Flight time: 5:15:09 PM.0 - 5:23:16 PM.6 (487 secs, 00:08:07)
Batt. time : 486 secs, 00:08:06
Start Lat./Lon. : 27.9611437 / -80.6750725
Elevation(GPS) : 0 0.04 4.825 m (min/avg/max)
Altitude(Barom.): -1.8 1.94 12.75 m
Vertical speed : -1.8 -0.05 3.86 m/s
Max speed : 12.9 km/h
Max target dist.: 3.5 m
Max distance/LOS: 13.4 m / 14.6 m
Sats : 9 10 12
Voltage : min. 15.1, max. 16.6 V
Current : 0.5 80 140.7 A
Wattage : 8 1261 2138.64 W
Capacity: 10744 mAh
Motor1: 0.0 7.0 16.9 A Temp: 35 40 45 °C
Motor2: 0.0 14.3 23.0 A Temp: 31 49 57 °C
Motor3: 0.0 6.2 14.9 A Temp: 32 38 42 °C
Motor4: 0.0 12.8 21.0 A Temp: 28 47 55 °C
Motor5: 0.0 5.9 12.3 A Temp: 32 40 44 °C
Motor6: 0.0 11.5 20.0 A Temp: 31 48 56 °C
Motor7: 0.0 5.2 13.0 A Temp: 31 39 44 °C
Motor8: 0.0 14.8 25.0 A Temp: 31 49 57 °C
Magnet Field: 99 102 107 % (ok)
Magnet Inclination: 54 55 61 deg
No errors found
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