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I learned that the reason for the poor quality video was that I rendered it at a low resolution, so I fixed the problem and reposted:

I reposted the video after fixing the resolution problem:

I live in Colorado. They are surplus and have no need for them. I cut the bullet connectors as I needed them for another build. I can package them up and find out the shipping cost if you are interested. I also have a Parallax Elev-8 that I might get rid of, if you are interested. I built it...

I have six, parted out from a Tarot 680 Pro Hexcopter that I no longer need: You can have all of them for $20.

Uh, that's a Parallax Elev-8 quad.

I'm suspicious. If there was a bomb attached to the drone when it exploded, I would have expected the drone to be pretty much obliterated, not like what was pictured. Also, if the quad actually flew back home, I'd hardly expect the guy who launched it to stand around as it landed. Methinks this...

I found the problem! There is a cable, consisting of three wires, that connects the receiver to it's satellite. The ground lead is broken off at the connector.

Well, I bought the update cable - it arrived today, and I downloaded the Spektrum Updater application, But I could not find any firmware updates. I contacted tech support at Horizon Hobby and he confirmed that the version of firmware I have is the latest. He had no suggestions other than to...

I have a DX8 transmitter - the manual does not mention upgrading firmware and I can find no programming port. I don't know why, all of a sudden, I would need to change firmware on the receiver, as it has been working fine. It just recently started exhibiting this behavior. I would think that...

This morning I tried to fly my Tarot quad but could not get it to arm nor tilt the camera gimbal. After taking it home and connecting it to my laptop for troubleshooting I noticed the the LED on the receiver was blinking even though the transmitter was on. Going to the Radio Calibration page in...

I think the thing that worked the best was replacing the ESC's with some that could easily be programmed. When I made sure that the timing was "Intermediate", I got much better results. Click here.

This will be my last post on this subject. I have had several successful test flights and today I flew a waypoint mission - a little over three minute flight but it was flawless. I don't know if twisting the wires did anything, but the aircraft seems to fly well. Here is a video of today's...

Here is my experience for what it's worth. I have built a Parallax Elev-8, Tarot 680 Hexcopter, a Tarot 650 Sport and 650 Ironman. I have also crashed the Elev-8 multiple times and completely rebuilt it. First off, you have to decide what you want to do with your homebuilt aircraft - learn to...

I have been wanting to get a Mavic ever since DJI introduced it, but it was too pricey for my budget. so I contented myself with building a Tarot Ironman - I wanted a stabilized aerial video platform. But I had an accident with the Tarot - that's another story, suffice to say, 17" carbon fiber...

Well, after all the technical issues I finally had two successful test flights! I resolved the Bad GPS warning problem - I had to plug the GPS into a port below the compass port. I also programmed the ESCs for Intermediate Timing, which seemed to resolve my motor surge issues. The first test...

I took my modified Elev-8 out for a flight a few days ago and it behaved strangely - would not hold position in Loiter mode and and started to fly way when I switched to RTL, so I had to take over and land manually. I pulled the flight controller off and opened up the case to make sure that the...

So, I replaced the ESC's with some T-Motor AIR 40A ESCs that I found at a reduced price on ebay. I flew the Tarot and found that the surge problem seemed to be better but the aircraft would not maintain altitude during either Loiter or Alt Hold flight modes. A check of the dataflash logs showed...

I finally put the aircraft back together - replaced a bullet connector on two motors that had questionable solder connections. I also lengthened the ESC/motor leads and twisted them. I took it out for a short flight and the problem persists - now I suspect an ESC synch issue. I am going to...