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I have built a few quads now,, and my latest is a ATG700 x6 hexcopter with 4k camera on 3 axis gimbal, with gps and autonomus flight with 433mhz telemetry + fpv live stream to fatsharks.. I already had most of the gear and it cost me around £600 for esc, motors, props, frame, 12v bec, flight...

I think the maximum height for all rc models is 120m = 400ft.. (who checks this tho?) missing from build = power distribution board+ anti vibes (with apm power outlet)...

I have had the same problem,, when descending there was not enough throttle to stay stable and the quad was falling rather than flying.. a small adjustment to the throttle and the quad would accelerate up making landings very hard and frightening.. I tried throttle curves and so on, but only...

can you get a feed of the LED supply,,, that should give you 3.3v from the power cube.. – 3x status LED (DCDC pwr/ 3.3V pwr/ status)

the only problem between the 3s and 4s battery is going to be heat,, the motor will be able to handle both batteries no problem, but the 4s option may generate more heat on the motor. the battery will not burn out the motors,, the esc will probably go first with the motor demanding more amps...

yes it would be better (capable of supplying more amps) .. and safer if there was a battery failure,, still have one left.. JUST A LITTLE THING TO REMEMBER don't forget a battery lipo alarm -- set your low voltage alarm, and when you battery runs low you get an audible sound telling you to...

hope this helps.... link to page http://apk4ios.com/APK_OpenPilot-GCS_iOS.html APK App OpenPilot GCS for iOS Hi, here we provide you APK file of "APK App OpenPilot GCS for iOS" to download and install for your mobile. It's easy and warranty. Let go download button and follow download...

I have a cc3d board which connects to a smart phone or laptop running android or windows using 3dr 433 radio link.. not sure if this works with the apple ios system (ipad) ill look into it, or look for compatible software.. andy

I was a programmer myself many years ago 199s... many things have changed,, I used dos and binary 0,1 (machine code), I have no real understanding of the latest programming concepts but are looking at wiki to understand the open pilot programming a bit more.. you probably know more than...

not AC -- - a DC motor has or can have more than one set of windings,,, ,,, the armature on a brca brushed motor usually has three sets of windings .. ie.. old 1/10 rc brca stock motor is 27x1 (7.2volt) == but has three set of windings of (27x1)on the armature.. not sure on brushless...

the amount of wires used on a motor winding have a big difference to the currents and basic acceleraton properties,,, ie 17x1 motor to a 17x4 motor ... the single core winding motor would have a quick acceleration whereas the quad turn motor would have slower acceleration but a higher top...

I use a lower kv motor to spin a larger prop slowly to gain longer flight times.. if I want to go faster it is no problem, but the amps then drawn can be a lot more than a higher rated kv motor.. the actual overall weight has an affect to the amps drawn.. anyway a 2209 motor kv1050...

wire and its flexability is important to reduce vibration transfer.. i use silicone wire to connect to flight controller and main chassis = no vibrations (or less) are transferred through wire because of its flexability, the multi strands also allow for more amps to travel down the wire rarther...

sonic sensors can also be used to negotiate round obstacles or to keep an even altitude to the ground on the flight controllers

I have a pixhawk and a px4lite flight controller,, both have options for lidar senors as well as many other sensors as standard plugins.. you do not have to have any programing expertise for this ... its very simple.. there are a few different sensors for measuring and surveying, it all...

I have the imax b6ac charger,,, 240ac and 12v dc voltages,, I have never had a problem with it.. fpv freerider is great for practicing... painless 360 has a utube vid showing how to set up taranis controller to fly.. I found this video on making custom quad... check it out... this giving...

ive had a few flights since,, just takes time to upload them,, ime at the point of flicking acro mode on now,, just not got the balls to push sticks all the way yet for a flip tho,,, as soon as I do,, ime posting that vid -- lol

think ime going to invest in a prop balancer,, the one Ive got is 3d printed,, thanks -- happy flying andy

I had a few harsh landings on this video,, no damages, but was a little frustrated at the power loss when descending.. thanks to ringolong I was made aware of the taranis calibration... THANKS AGAIN flying high -- andy..

I tried using little pieces of tape on underside of props,,, I gonna have another go sanding the trailing edge on props tho... been told putting pieces of tape on isn't a good idea.. what is the best way to balance props tho ?... don't have this problem on freerider fpv ,,,, lol even...