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I have a fleet of Zippys and one 8000 mAh swollen while in storage, about 2 weeks after i storage charged it. The battery was almost new, charged at storage voltage with iCharger 3010b using the storage program. The battery was also stored in cool and dry place, with extra isolator caps on...

Is there any study about efficiency of a coaxial versus normal engine configuration? Does anyone knows if in coaxial configurations the lower propeller spins faster than upper propeller? because logically it should...

Does anybody have a list of countries where flying multirotors for business is illegal? What exactly is not legal? Is there a ceiling limit or something, like in airspace classes from in civil aviation ? I there a limit on weight? Is this law applicable to all land, public an private? For...

So, besides the dangerous bug i warned about in thread below, there is also not possible to make custom motor mixer when using 8 motor configurations, because the Stabilization is always ON (even when if is checked OFF). So, when if check Customize checkbox in Motor Mixer , the stabilization...

I noticed Droidworx changed the specification chart and Plettenberg motors are deleted from Skyjib's recomended motors. Anyone know about the reason?

Yet another WKM stupid problem. When WKM hits second level protection it lands, which is nice. The problem is that does not stop motors after landing, even when Cut Off Type is in Intelligent mode, and they say it has landing judgment. So, yesterday the WKM hit first level protection, when i...

Is WKM's Voltage Monitor accurate? I tried many times letting the octo to land by itself in second level protection and i measured the batteries after cooling down, every time the voltage was different, between 0.2-0.5V differences. Is this normal? Thanks.

Anyone knows last generation Zippy batteries charging rating? is seems manufacturer site does not exist anymore, so there is no info about them. I would like to know if anyone charge them at 2C or more. Thanks

In the following situation: 1. Gimbal Switch is set OFF ( check box is OFF on Gimbal window from software assistant) 2. In motor mixer window 8 motor configuration is checked, then DEFAULT button is clicked. Resulting in Motor connected to F1 and F2 start spinning ! So, while you and...

Since we have right-hand rotations shaft in half of the motors and this may cause the nut to loosen, I'm looking for Left-handed thread propeller mounts. Anyone knows a supplier? Thanks

What happens if you run Lipos in parallel on one of the lipos dies? i believe there is no good redundancy in this scenario, the dead lipo will drain the good lipo, please correct me if i'm wrong... So, is there any intelligent switch for running more than one lipo with real redundancy, by...

Since DJI WKM lacks telemetry and his battery low voltage warning is not enough for monitoring battery status when flying a rig with Red Epic, I'm looking for a reliable battery telemetry solutions for a 4 x 5S battery set. I found two possible candidates: 1. Quanum Wireless Battery Telemetry...

I was trying the Safe-Fail today and noticed the WKM does not switch back from Fail-Safe. I have a switch set for Fail-Safe and it works perfectly when WKM is connected to computer, when i hit the switch WKM goes to Fail-Safe and when i switch back it goes back on GPS, Atti or manual modes...

Hello, I was thinking that would be interesting to share performance of our Octo setups. Could you please share your Amps at hoovering and total liftoff weight please? Please mention your: Amps at hoovering: Total liftoff weight: Powerboard/ESC: Motor: Propeller: Battery cell number: I think...

Hello, I'm building a custom gimble and i would like to use the same servos and potentiometers used in Cinestar gimbles. Can anyone please tell me what models are used? Thanks M.

Hello, Do i have to set Fail-Safe positions on my TX for A, E, T, R? or just setting the U channel is enough and WKM will take care of the rest by taking over the A, E, T, R without any input from receiver? thanks, Mihnea

I'm new to DJI and I was setting up the TX calibrations and suddenly the LED started to blink green for a few seconds, then resumed to normal red blinking (>5 satellites in manual mode). After a while started to blink fast on green again until I had to power off the MC. Then it was ok... no more...

Hello, I start buiding a octocopter, but since i'm a complete newbie, i already got into troubles. I try to connect DJI Main Controller with Graupner GR-16, but it seems the conenctor i got form DJI kit does not fit in GR-16 because of a little shoulder on the connector. Logic says something...

Hello, I'm Mihnea de Vries. I'm a filmmaker. I'm starting to built a Octocopter with custom frame based on DJI WKM. I just ordered some parts and i will probably put a lot of newbie questions in the following weeks :) cheers, Mihnea de Vries // advertising & film sevengee advertising 7g...